From: Fox Chen <foxhlchen@gmail.com>
To: Ian Kent <raven@themaw.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Tejun Heo <tj@kernel.org>, Brice Goglin <brice.goglin@gmail.com>,
Rick Lindsley <ricklind@linux.vnet.ibm.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Miklos Szeredi <miklos@szeredi.hu>,
David Howells <dhowells@redhat.com>,
Eric Sandeen <sandeen@sandeen.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH v3 0/4] kernfs: proposed locking and concurrency improvement
Date: Mon, 19 Apr 2021 15:56:06 +0800 [thread overview]
Message-ID: <CAC2o3DKNc=sL2n8291Dpiyb0bRHaX=nd33ogvO_LkJqpBj-YmA@mail.gmail.com> (raw)
In-Reply-To: <161793058309.10062.17056551235139961080.stgit@mickey.themaw.net>
[-- Attachment #1: Type: text/plain, Size: 3214 bytes --]
On Fri, Apr 9, 2021 at 9:14 AM Ian Kent <raven@themaw.net> wrote:
>
> There have been a few instances of contention on the kernfs_mutex during
> path walks, a case on very large IBM systems seen by myself, a report by
> Brice Goglin and followed up by Fox Chen, and I've since seen a couple
> of other reports by CoreOS users.
>
> The common thread is a large number of kernfs path walks leading to
> slowness of path walks due to kernfs_mutex contention.
>
> The problem being that changes to the VFS over some time have increased
> it's concurrency capabilities to an extent that kernfs's use of a mutex
> is no longer appropriate. There's also an issue of walks for non-existent
> paths causing contention if there are quite a few of them which is a less
> common problem.
>
> This patch series is relatively straight forward.
>
> All it does is add the ability to take advantage of VFS negative dentry
> caching to avoid needless dentry alloc/free cycles for lookups of paths
> that don't exit and change the kernfs_mutex to a read/write semaphore.
>
> The patch that tried to stay in VFS rcu-walk mode during path walks has
> been dropped for two reasons. First, it doesn't actually give very much
> improvement and, second, if there's a place where mistakes could go
> unnoticed it would be in that path. This makes the patch series simpler
> to review and reduces the likelihood of problems going unnoticed and
> popping up later.
>
> The patch to use a revision to identify if a directory has changed has
> also been dropped. If the directory has changed the dentry revision
> needs to be updated to avoid subsequent rb tree searches and after
> changing to use a read/write semaphore the update also requires a lock.
> But the d_lock is the only lock available at this point which might
> itself be contended.
>
> Changes since v2:
> - actually fix the inode attribute update locking.
> - drop the patch that tried to stay in rcu-walk mode.
> - drop the use a revision to identify if a directory has changed patch.
>
> Changes since v1:
> - fix locking in .permission() and .getattr() by re-factoring the attribute
> handling code.
>
> ---
>
> Ian Kent (4):
> kernfs: move revalidate to be near lookup
> kernfs: use VFS negative dentry caching
> kernfs: switch kernfs to use an rwsem
> kernfs: use i_lock to protect concurrent inode updates
>
>
> fs/kernfs/dir.c | 240 +++++++++++++++++++++++--------------------
> fs/kernfs/file.c | 4 -
> fs/kernfs/inode.c | 18 ++-
> fs/kernfs/kernfs-internal.h | 5 +
> fs/kernfs/mount.c | 12 +-
> fs/kernfs/symlink.c | 4 -
> include/linux/kernfs.h | 2
> 7 files changed, 155 insertions(+), 130 deletions(-)
>
> --
>
Hi Ian,
I tested this patchset with my
benchmark(https://github.com/foxhlchen/sysfs_benchmark) on a 96 CPUs
(aws c5) machine.
The result was promising:
Before, one open+read+close cycle took 500us without much variation.
With this patch, the fastest one only takes 30us, though the slowest
is still around 100us(due to the spinlock). perf report shows no more
significant mutex contention.
FYR, I put outputs in the attachment.
thanks,
fox
[-- Attachment #2: result.after --]
[-- Type: application/octet-stream, Size: 4927 bytes --]
single: total 3.006701ms per 3.006701us
concur: total 32.057796ms per 32.057796us CPU 51
concur: total 32.492103ms per 32.492103us CPU 3
concur: total 32.737743ms per 32.737743us CPU 7
concur: total 33.087308ms per 33.087308us CPU 2
concur: total 33.271875ms per 33.271875us CPU 49
concur: total 33.346198ms per 33.346198us CPU 50
concur: total 33.483394ms per 33.483394us CPU 55
concur: total 33.575117ms per 33.575117us CPU 1
concur: total 33.873799ms per 33.873799us CPU 6
concur: total 34.056747ms per 34.056747us CPU 5
concur: total 34.139490ms per 34.139490us CPU 54
concur: total 34.317747ms per 34.317747us CPU 53
concur: total 35.430002ms per 35.430002us CPU 48
concur: total 35.467414ms per 35.467414us CPU 0
concur: total 36.634091ms per 36.634091us CPU 4
concur: total 36.803717ms per 36.803717us CPU 52
concur: total 36.959244ms per 36.959244us CPU 11
concur: total 37.446623ms per 37.446623us CPU 59
concur: total 37.607590ms per 37.607590us CPU 58
concur: total 37.916612ms per 37.916612us CPU 10
concur: total 38.044637ms per 38.044637us CPU 9
concur: total 38.379601ms per 38.379601us CPU 57
concur: total 38.582989ms per 38.582989us CPU 15
concur: total 39.408612ms per 39.408612us CPU 62
concur: total 40.001796ms per 40.001796us CPU 63
concur: total 40.123991ms per 40.123991us CPU 14
concur: total 41.816000ms per 41.816000us CPU 13
concur: total 43.134413ms per 43.134413us CPU 8
concur: total 43.167374ms per 43.167374us CPU 61
concur: total 43.673585ms per 43.673585us CPU 56
concur: total 45.289910ms per 45.289910us CPU 12
concur: total 45.342382ms per 45.342382us CPU 60
concur: total 64.314757ms per 64.314757us CPU 67
concur: total 64.571128ms per 64.571128us CPU 23
concur: total 64.650921ms per 64.650921us CPU 71
concur: total 64.734934ms per 64.734934us CPU 19
concur: total 64.863810ms per 64.863810us CPU 17
concur: total 64.916032ms per 64.916032us CPU 66
concur: total 64.988355ms per 64.988355us CPU 21
concur: total 65.004955ms per 65.004955us CPU 65
concur: total 65.134421ms per 65.134421us CPU 18
concur: total 65.293527ms per 65.293527us CPU 70
concur: total 65.410172ms per 65.410172us CPU 22
concur: total 65.494995ms per 65.494995us CPU 69
concur: total 65.597959ms per 65.597959us CPU 64
concur: total 65.891331ms per 65.891331us CPU 20
concur: total 66.150142ms per 66.150142us CPU 68
concur: total 66.263326ms per 66.263326us CPU 16
concur: total 80.115175ms per 80.115175us CPU 27
concur: total 80.402707ms per 80.402707us CPU 31
concur: total 80.565403ms per 80.565403us CPU 75
concur: total 80.757601ms per 80.757601us CPU 79
concur: total 80.988801ms per 80.988801us CPU 73
concur: total 81.060023ms per 81.060023us CPU 78
concur: total 81.169068ms per 81.169068us CPU 25
concur: total 81.525702ms per 81.525702us CPU 30
concur: total 81.678108ms per 81.678108us CPU 26
concur: total 81.737981ms per 81.737981us CPU 29
concur: total 82.072014ms per 82.072014us CPU 77
concur: total 82.073764ms per 82.073764us CPU 74
concur: total 82.673568ms per 82.673568us CPU 72concur: total 82.687729ms per 82.687729us CPU 76
concur: total 83.002492ms per 83.002492us CPU 24
concur: total 83.163668ms per 83.163668us CPU 28
concur: total 102.776790ms per 102.776790us CPU 87
concur: total 102.857793ms per 102.857793us CPU 35
concur: total 103.023630ms per 103.023630us CPU 39
concur: total 103.143735ms per 103.143735us CPU 43
concur: total 103.251629ms per 103.251629us CPU 83
concur: total 103.304701ms per 103.304701us CPU 33
concur: total 103.393765ms per 103.393765us CPU 91
concur: total 103.416055ms per 103.416055us concur: total 103.419316ms per 103.419316us concur: total 103.429036ms per 103.429036us concur: total 103.424245ms per 103.424245us CPU 86 CPU 95
CPU 34
CPU 85
concur: total 103.465647ms per 103.465647us CPU 37
concur: total 103.556421ms per 103.556421us CPU 81
concur: total 103.600983ms per 103.600983us CPU 89concur: total 103.608003ms per 103.608003us CPU 82concur: total 103.622134ms per 103.622134us CPU 41
concur: total 103.659765ms per 103.659765us CPU 38
concur: total 103.759289ms per 103.759289us CPU 47
concur: total 103.795671ms per 103.795671us CPU 90
concur: total 103.835662ms per 103.835662us CPU 45
concur: total 103.874204ms per 103.874204us CPU 42
concur: total 103.921736ms per 103.921736us CPU 36
concur: total 104.031040ms per 104.031040us CPU 94
concur: total 104.070472ms per 104.070472us CPU 80
concur: total 104.078142ms per 104.078142us CPU 93
concur: total 104.124384ms per 104.124384us CPU 32
concur: total 104.160405ms per 104.160405us CPU 46
concur: total 104.185506ms per 104.185506us CPU 40
concur: total 104.207247ms per 104.207247us CPU 92
concur: total 104.246149ms per 104.246149us CPU 84
concur: total 104.293941ms per 104.293941us CPU 88
concur: total 104.314402ms per 104.314402us CPU 44
times: 1000 threads: 96 cpus: 96
[-- Attachment #3: result.before --]
[-- Type: application/octet-stream, Size: 5055 bytes --]
single: total 2.884608ms per 2.884608us
concur: total 493.478294ms per 493.478294us CPU 54
concur: total 494.759468ms per 494.759468us CPU 16
concur: total 495.123051ms per 495.123051us CPU 17
concur: total 495.336105ms per 495.336105us CPU 64
concur: total 495.430841ms per 495.430841us CPU 14
concur: total 495.448193ms per 495.448193us CPU 70
concur: total 495.468434ms per 495.468434us CPU 67
concur: total 496.068303ms per 496.068303us CPU 43concur: total 496.073834ms per 496.073834us CPU 83
concur: total 496.214473ms per 496.214473us CPU 22
concur: total 496.388984ms per 496.388984us CPU 84
concur: total 496.615719ms per 496.615719us CPU 38
concur: total 496.662582ms per 496.662582us CPU 5
concur: total 496.954701ms per 496.954701us CPU 69
concur: total 496.963772ms per 496.963772us CPU 66
concur: total 497.130163ms per 497.130163us CPU 35
concur: total 497.164755ms per 497.164755us CPU 18concur: total 497.170125ms per 497.170125us CPU 74
concur: total 497.243370ms per 497.243370us CPU 19
concur: total 497.348467ms per 497.348467us CPU 85
concur: total 497.616995ms per 497.616995us CPU 79
concur: total 498.182402ms per 498.182402us CPU 15
concur: total 498.346592ms per 498.346592us CPU 78
concur: total 498.560636ms per 498.560636us CPU 71
concur: total 498.793862ms per 498.793862us CPU 36
concur: total 498.795112ms per 498.795112us CPU 10
concur: total 498.836754ms per 498.836754us CPU 94
concur: total 499.016226ms per 499.016226us CPU 80
concur: total 499.117983ms per 499.117983us CPU 24
concur: total 499.402951ms per 499.402951us CPU 2
concur: total 499.489227ms per 499.489227us CPU 32
concur: total 499.509828ms per 499.509828us CPU 81
concur: total 499.574623ms per 499.574623us concur: total 499.577163ms per 499.577163us CPU 37
concur: total 499.644097ms per 499.644097us CPU 91
CPU 63
concur: total 499.729263ms per 499.729263us CPU 30
concur: total 499.760315ms per 499.760315us CPU 65
concur: total 499.829729ms per 499.829729us CPU 8
concur: total 499.848731ms per 499.848731us CPU 21
concur: total 499.723043ms per 499.723043us CPU 55
concur: total 499.940567ms per 499.940567us CPU 62
concur: total 499.976419ms per 499.976419us CPU 34
concur: total 500.024402ms per 500.024402us CPU 53
concur: total 500.088066ms per 500.088066us CPU 44
concur: total 500.104787ms per 500.104787us CPU 11
concur: total 500.132569ms per 500.132569us CPU 27
concur: total 500.175832ms per 500.175832us CPU 86
concur: total 500.209424ms per 500.209424us CPU 46
concur: total 500.224665ms per 500.224665us CPU 73
concur: total 500.227475ms per 500.227475us CPU 50
concur: total 500.282449ms per 500.282449us CPU 23
concur: total 500.292870ms per 500.292870us CPU 41
concur: total 500.370375ms per 500.370375us CPU 6
concur: total 500.540066ms per 500.540066us CPU 33
concur: total 500.597190ms per 500.597190us CPU 61
concur: total 500.657503ms per 500.657503us CPU 90
concur: total 500.727758ms per 500.727758us CPU 92
concur: total 500.767171ms per 500.767171us CPU 3
concur: total 500.782442ms per 500.782442us CPU 56
concur: total 500.848026ms per 500.848026us CPU 47concur: total 500.853006ms per 500.853006us concur: total 500.861377ms per 500.861377us CPU 52 CPU 39
concur: total 500.883958ms per 500.883958us CPU 26
concur: total 500.948133ms per 500.948133us CPU 89
concur: total 500.954853ms per 500.954853us CPU 88
concur: total 501.007586ms per 501.007586us CPU 76
concur: total 501.106263ms per 501.106263us CPU 28
concur: total 501.153606ms per 501.153606us CPU 75
concur: total 501.174267ms per 501.174267us CPU 58
concur: total 501.187538ms per 501.187538us CPU 51
concur: total 501.249452ms per 501.249452us CPU 72
concur: total 501.258213ms per 501.258213us CPU 40
concur: total 501.340298ms per 501.340298us CPU 82
concur: total 501.346649ms per 501.346649us CPU 12
concur: total 501.371100ms per 501.371100us CPU 9
concur: total 501.405882ms per 501.405882us CPU 4
concur: total 501.449815ms per 501.449815us CPU 87
concur: total 501.468097ms per 501.468097us CPU 20concur: total 501.464897ms per 501.464897us CPU 95
concur: total 501.525250ms per 501.525250us CPU 45
concur: total 501.482868ms per 501.482868us CPU 25
concur: total 501.641478ms per 501.641478us CPU 42
concur: total 501.646838ms per 501.646838us CPU 68
concur: total 501.702382ms per 501.702382us CPU 59
concur: total 501.726964ms per 501.726964us CPU 31
concur: total 501.742874ms per 501.742874us CPU 7concur: total 501.728604ms per 501.728604us CPU 29
concur: total 501.780907ms per 501.780907us CPU 0
concur: total 501.818790ms per 501.818790us CPU 48
concur: total 501.827900ms per 501.827900us CPU 60
concur: total 501.849432ms per 501.849432us CPU 57
concur: total 501.862902ms per 501.862902us CPU 93
concur: total 501.879784ms per 501.879784us CPU 13
concur: total 501.938867ms per 501.938867us CPU 77
concur: total 502.001791ms per 502.001791us CPU 1
concur: total 502.009782ms per 502.009782us CPU 49
times: 1000 threads: 96 cpus: 96
[-- Attachment #4: perf_report --]
[-- Type: application/octet-stream, Size: 230766 bytes --]
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 2K of event 'cycles'
# Event count (approx.): 513478020
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... .................. ..............................................
#
91.01% 0.20% bin_sysbm [kernel.kallsyms] [k] entry_SYSCALL_64_after_hwframe
|
--90.80%--entry_SYSCALL_64_after_hwframe
|
--90.66%--do_syscall_64
|
|--56.89%--__x64_sys_openat
| |
| --56.82%--do_sys_open
| do_sys_openat2
| |
| |--22.24%--fd_install
| | |
| | --22.08%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| |--18.23%--do_filp_open
| | path_openat
| | |
| | |--8.39%--link_path_walk.part.0
| | | |
| | | |--4.47%--inode_permission
| | | | |
| | | | |--2.84%--kernfs_iop_permission
| | | | | |
| | | | | |--1.19%--down_read
| | | | | |
| | | | | |--0.68%--generic_permission
| | | | | |
| | | | | --0.66%--kernfs_refresh_inode
| | | | | |
| | | | | --0.58%--_raw_spin_lock
| | | | | native_queued_spin_lock_slowpath
| | | | |
| | | | --0.57%--up_read
| | | |
| | | --3.49%--walk_component
| | | |
| | | --3.04%--lookup_fast
| | | |
| | | |--1.02%--kernfs_dop_revalidate
| | | | |
| | | | --0.94%--down_read
| | | |
| | | |--0.99%--__d_lookup
| | | | _raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.59%--_raw_spin_lock
| | |
| | |--4.18%--vfs_open
| | | do_dentry_open
| | | |
| | | --3.21%--kernfs_fop_open
| | | |
| | | --2.50%--mutex_lock
| | | |
| | | --2.18%--__mutex_lock_slowpath
| | | |
| | | --2.10%--__mutex_lock.isra.0
| | | |
| | | --1.78%--osq_lock
| | |
| | |--1.88%--alloc_empty_file
| | | __alloc_file
| | | |
| | | --1.09%--kmem_cache_alloc
| | |
| | |--1.35%--may_open
| | | |
| | | --1.27%--inode_permission
| | | |
| | | --1.05%--kernfs_iop_permission
| | | |
| | | --0.64%--kernfs_refresh_inode
| | | |
| | | --0.56%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --1.20%--lookup_fast
| | |
| | --0.70%--__d_lookup
| | |
| | --0.65%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --15.25%--get_unused_fd_flags
| |
| --14.76%--alloc_fd
| |
| --13.95%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--20.63%--__x64_sys_close
| close_fd
| |
| |--19.93%--pick_file
| | |
| | --19.80%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.62%--_raw_spin_lock
|
|--9.22%--syscall_exit_to_user_mode
| |
| --9.13%--exit_to_user_mode_prepare
| |
| --8.98%--task_work_run
| |
| --8.93%--____fput
| |
| --8.85%--__fput
| |
| |--7.13%--kernfs_fop_release
| | |
| | |--5.46%--kernfs_put_open_node.isra.0
| | | |
| | | --5.19%--mutex_lock
| | | |
| | | --5.01%--__mutex_lock_slowpath
| | | |
| | | --4.88%--__mutex_lock.isra.0
| | | |
| | | --4.57%--osq_lock
| | |
| | --1.36%--seq_release
| | |
| | --1.10%--kvfree
| | kfree
| | |
| | --1.02%--obj_cgroup_uncharge
| | refill_obj_stock
| | |
| | --0.67%--drain_obj_stock.isra.0
| | |
| | --0.51%--__memcg_kmem_uncharge
| |
| --0.82%--dput
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--3.78%--__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
90.66% 0.00% bin_sysbm [kernel.kallsyms] [k] do_syscall_64
|
---do_syscall_64
|
|--56.89%--__x64_sys_openat
| |
| --56.82%--do_sys_open
| do_sys_openat2
| |
| |--22.24%--fd_install
| | |
| | --22.08%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| |--18.23%--do_filp_open
| | path_openat
| | |
| | |--8.39%--link_path_walk.part.0
| | | |
| | | |--4.47%--inode_permission
| | | | |
| | | | |--2.84%--kernfs_iop_permission
| | | | | |
| | | | | |--1.19%--down_read
| | | | | |
| | | | | |--0.68%--generic_permission
| | | | | |
| | | | | --0.66%--kernfs_refresh_inode
| | | | | |
| | | | | --0.58%--_raw_spin_lock
| | | | | native_queued_spin_lock_slowpath
| | | | |
| | | | --0.57%--up_read
| | | |
| | | --3.49%--walk_component
| | | |
| | | --3.04%--lookup_fast
| | | |
| | | |--1.02%--kernfs_dop_revalidate
| | | | |
| | | | --0.94%--down_read
| | | |
| | | |--0.99%--__d_lookup
| | | | _raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.59%--_raw_spin_lock
| | |
| | |--4.18%--vfs_open
| | | do_dentry_open
| | | |
| | | --3.21%--kernfs_fop_open
| | | |
| | | --2.50%--mutex_lock
| | | |
| | | --2.18%--__mutex_lock_slowpath
| | | |
| | | --2.10%--__mutex_lock.isra.0
| | | |
| | | --1.78%--osq_lock
| | |
| | |--1.88%--alloc_empty_file
| | | __alloc_file
| | | |
| | | --1.09%--kmem_cache_alloc
| | |
| | |--1.35%--may_open
| | | |
| | | --1.27%--inode_permission
| | | |
| | | --1.05%--kernfs_iop_permission
| | | |
| | | --0.64%--kernfs_refresh_inode
| | | |
| | | --0.56%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --1.20%--lookup_fast
| | |
| | --0.70%--__d_lookup
| | |
| | --0.65%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --15.25%--get_unused_fd_flags
| |
| --14.76%--alloc_fd
| |
| --13.95%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--20.63%--__x64_sys_close
| close_fd
| |
| |--19.93%--pick_file
| | |
| | --19.80%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.62%--_raw_spin_lock
|
|--9.22%--syscall_exit_to_user_mode
| |
| --9.13%--exit_to_user_mode_prepare
| |
| --8.98%--task_work_run
| |
| --8.93%--____fput
| |
| --8.85%--__fput
| |
| |--7.13%--kernfs_fop_release
| | |
| | |--5.46%--kernfs_put_open_node.isra.0
| | | |
| | | --5.19%--mutex_lock
| | | |
| | | --5.01%--__mutex_lock_slowpath
| | | |
| | | --4.88%--__mutex_lock.isra.0
| | | |
| | | --4.57%--osq_lock
| | |
| | --1.36%--seq_release
| | |
| | --1.10%--kvfree
| | kfree
| | |
| | --1.02%--obj_cgroup_uncharge
| | refill_obj_stock
| | |
| | --0.67%--drain_obj_stock.isra.0
| | |
| | --0.51%--__memcg_kmem_uncharge
| |
| --0.82%--dput
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--3.78%--__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
61.98% 2.26% bin_sysbm [kernel.kallsyms] [k] _raw_spin_lock
|
|--59.71%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--1.64%--0x7379732f73656369
| 0x7f88520d7ad4
| entry_SYSCALL_64_after_hwframe
| do_syscall_64
| __x64_sys_openat
| do_sys_open
| do_sys_openat2
| |
| --1.03%--do_filp_open
| path_openat
| |
| --0.81%--link_path_walk.part.0
| |
| --0.59%--walk_component
| lookup_fast
| _raw_spin_lock
|
--0.62%--0x7f88520cc609
0x56303487c721
0x7f88520d73fb
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_close
close_fd
_raw_spin_lock
59.80% 59.80% bin_sysbm [kernel.kallsyms] [k] native_queued_spin_lock_slowpath
|
|--39.17%--0x7379732f73656369
| 0x7f88520d7ad4
| entry_SYSCALL_64_after_hwframe
| do_syscall_64
| __x64_sys_openat
| do_sys_open
| do_sys_openat2
| |
| |--22.08%--fd_install
| | _raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| |--14.03%--get_unused_fd_flags
| | alloc_fd
| | |
| | --13.95%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --3.07%--do_filp_open
| path_openat
| |
| |--1.65%--link_path_walk.part.0
| | |
| | |--1.07%--walk_component
| | | |
| | | --0.99%--lookup_fast
| | | __d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.58%--inode_permission
| | kernfs_iop_permission
| | kernfs_refresh_inode
| | _raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| |--0.65%--lookup_fast
| | __d_lookup
| | _raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.56%--may_open
| inode_permission
| kernfs_iop_permission
| kernfs_refresh_inode
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--20.62%--0x7f88520cc609
0x56303487c721
0x7f88520d73fb
entry_SYSCALL_64_after_hwframe
do_syscall_64
|
|--19.80%--__x64_sys_close
| close_fd
| pick_file
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.82%--syscall_exit_to_user_mode
exit_to_user_mode_prepare
task_work_run
____fput
__fput
dput
_raw_spin_lock
native_queued_spin_lock_slowpath
57.29% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520d7ad4
|
---0x7f88520d7ad4
|
--57.09%--entry_SYSCALL_64_after_hwframe
|
--56.97%--do_syscall_64
|
--56.89%--__x64_sys_openat
|
--56.82%--do_sys_open
do_sys_openat2
|
|--22.24%--fd_install
| |
| --22.08%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--18.23%--do_filp_open
| path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--15.25%--get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
57.25% 0.00% bin_sysbm [unknown] [k] 0x7379732f73656369
|
---0x7379732f73656369
0x7f88520d7ad4
|
--57.05%--entry_SYSCALL_64_after_hwframe
|
--56.97%--do_syscall_64
|
--56.89%--__x64_sys_openat
|
--56.82%--do_sys_open
do_sys_openat2
|
|--22.24%--fd_install
| |
| --22.08%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--18.23%--do_filp_open
| path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--15.25%--get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
56.89% 0.00% bin_sysbm [kernel.kallsyms] [k] __x64_sys_openat
|
---__x64_sys_openat
|
--56.82%--do_sys_open
do_sys_openat2
|
|--22.24%--fd_install
| |
| --22.08%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--18.23%--do_filp_open
| path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--15.25%--get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
56.89% 0.31% bin_sysbm [kernel.kallsyms] [k] do_sys_openat2
|
--56.58%--do_sys_openat2
|
|--22.24%--fd_install
| |
| --22.08%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--18.23%--do_filp_open
| path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--15.25%--get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
56.82% 0.00% bin_sysbm [kernel.kallsyms] [k] do_sys_open
|
---do_sys_open
do_sys_openat2
|
|--22.24%--fd_install
| |
| --22.08%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--18.23%--do_filp_open
| path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--15.25%--get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
34.29% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520cc609
|
---0x7f88520cc609
|
--34.20%--0x56303487c721
|
|--30.00%--0x7f88520d73fb
| entry_SYSCALL_64_after_hwframe
| |
| --29.84%--do_syscall_64
| |
| |--20.63%--__x64_sys_close
| | close_fd
| | |
| | |--19.93%--pick_file
| | | |
| | | --19.80%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.62%--_raw_spin_lock
| |
| --9.13%--syscall_exit_to_user_mode
| exit_to_user_mode_prepare
| |
| --8.98%--task_work_run
| |
| --8.93%--____fput
| |
| --8.85%--__fput
| |
| |--7.13%--kernfs_fop_release
| | |
| | |--5.46%--kernfs_put_open_node.isra.0
| | | |
| | | --5.19%--mutex_lock
| | | |
| | | --5.01%--__mutex_lock_slowpath
| | | |
| | | --4.88%--__mutex_lock.isra.0
| | | |
| | | --4.57%--osq_lock
| | |
| | --1.36%--seq_release
| | |
| | --1.10%--kvfree
| | kfree
| | |
| | --1.02%--obj_cgroup_uncharge
| | refill_obj_stock
| | |
| | --0.67%--drain_obj_stock.isra.0
| | |
| | --0.51%--__memcg_kmem_uncharge
| |
| --0.82%--dput
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--3.83%--0x7f88520d736c
entry_SYSCALL_64_after_hwframe
|
--3.78%--do_syscall_64
__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
34.20% 0.00% bin_sysbm bin_sysbm [.] 0x000056303487c721
|
---0x56303487c721
|
|--30.00%--0x7f88520d73fb
| entry_SYSCALL_64_after_hwframe
| |
| --29.84%--do_syscall_64
| |
| |--20.63%--__x64_sys_close
| | close_fd
| | |
| | |--19.93%--pick_file
| | | |
| | | --19.80%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.62%--_raw_spin_lock
| |
| --9.13%--syscall_exit_to_user_mode
| exit_to_user_mode_prepare
| |
| --8.98%--task_work_run
| |
| --8.93%--____fput
| |
| --8.85%--__fput
| |
| |--7.13%--kernfs_fop_release
| | |
| | |--5.46%--kernfs_put_open_node.isra.0
| | | |
| | | --5.19%--mutex_lock
| | | |
| | | --5.01%--__mutex_lock_slowpath
| | | |
| | | --4.88%--__mutex_lock.isra.0
| | | |
| | | --4.57%--osq_lock
| | |
| | --1.36%--seq_release
| | |
| | --1.10%--kvfree
| | kfree
| | |
| | --1.02%--obj_cgroup_uncharge
| | refill_obj_stock
| | |
| | --0.67%--drain_obj_stock.isra.0
| | |
| | --0.51%--__memcg_kmem_uncharge
| |
| --0.82%--dput
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--3.83%--0x7f88520d736c
entry_SYSCALL_64_after_hwframe
|
--3.78%--do_syscall_64
__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
30.00% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520d73fb
|
---0x7f88520d73fb
entry_SYSCALL_64_after_hwframe
|
--29.84%--do_syscall_64
|
|--20.63%--__x64_sys_close
| close_fd
| |
| |--19.93%--pick_file
| | |
| | --19.80%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.62%--_raw_spin_lock
|
--9.13%--syscall_exit_to_user_mode
exit_to_user_mode_prepare
|
--8.98%--task_work_run
|
--8.93%--____fput
|
--8.85%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
22.24% 0.16% bin_sysbm [kernel.kallsyms] [k] fd_install
|
--22.08%--fd_install
_raw_spin_lock
native_queued_spin_lock_slowpath
20.71% 0.08% bin_sysbm [kernel.kallsyms] [k] close_fd
|
--20.63%--close_fd
|
|--19.93%--pick_file
| |
| --19.80%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.62%--_raw_spin_lock
20.63% 0.00% bin_sysbm [kernel.kallsyms] [k] __x64_sys_close
|
---__x64_sys_close
close_fd
|
|--19.93%--pick_file
| |
| --19.80%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.62%--_raw_spin_lock
19.93% 0.13% bin_sysbm [kernel.kallsyms] [k] pick_file
|
--19.80%--pick_file
_raw_spin_lock
native_queued_spin_lock_slowpath
18.23% 0.00% bin_sysbm [kernel.kallsyms] [k] do_filp_open
|
---do_filp_open
path_openat
|
|--8.39%--link_path_walk.part.0
| |
| |--4.47%--inode_permission
| | |
| | |--2.84%--kernfs_iop_permission
| | | |
| | | |--1.19%--down_read
| | | |
| | | |--0.68%--generic_permission
| | | |
| | | --0.66%--kernfs_refresh_inode
| | | |
| | | --0.58%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.57%--up_read
| |
| --3.49%--walk_component
| |
| --3.04%--lookup_fast
| |
| |--1.02%--kernfs_dop_revalidate
| | |
| | --0.94%--down_read
| |
| |--0.99%--__d_lookup
| | _raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.59%--_raw_spin_lock
|
|--4.18%--vfs_open
| do_dentry_open
| |
| --3.21%--kernfs_fop_open
| |
| --2.50%--mutex_lock
| |
| --2.18%--__mutex_lock_slowpath
| |
| --2.10%--__mutex_lock.isra.0
| |
| --1.78%--osq_lock
|
|--1.88%--alloc_empty_file
| __alloc_file
| |
| --1.09%--kmem_cache_alloc
|
|--1.35%--may_open
| |
| --1.27%--inode_permission
| |
| --1.05%--kernfs_iop_permission
| |
| --0.64%--kernfs_refresh_inode
| |
| --0.56%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--1.20%--lookup_fast
|
--0.70%--__d_lookup
|
--0.65%--_raw_spin_lock
native_queued_spin_lock_slowpath
18.23% 0.50% bin_sysbm [kernel.kallsyms] [k] path_openat
|
|--17.72%--path_openat
| |
| |--8.39%--link_path_walk.part.0
| | |
| | |--4.47%--inode_permission
| | | |
| | | |--2.84%--kernfs_iop_permission
| | | | |
| | | | |--1.19%--down_read
| | | | |
| | | | |--0.68%--generic_permission
| | | | |
| | | | --0.66%--kernfs_refresh_inode
| | | | |
| | | | --0.58%--_raw_spin_lock
| | | | native_queued_spin_lock_slowpath
| | | |
| | | --0.57%--up_read
| | |
| | --3.49%--walk_component
| | |
| | --3.04%--lookup_fast
| | |
| | |--1.02%--kernfs_dop_revalidate
| | | |
| | | --0.94%--down_read
| | |
| | |--0.99%--__d_lookup
| | | _raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.59%--_raw_spin_lock
| |
| |--4.18%--vfs_open
| | do_dentry_open
| | |
| | --3.21%--kernfs_fop_open
| | |
| | --2.50%--mutex_lock
| | |
| | --2.18%--__mutex_lock_slowpath
| | |
| | --2.10%--__mutex_lock.isra.0
| | |
| | --1.78%--osq_lock
| |
| |--1.88%--alloc_empty_file
| | __alloc_file
| | |
| | --1.09%--kmem_cache_alloc
| |
| |--1.35%--may_open
| | |
| | --1.27%--inode_permission
| | |
| | --1.05%--kernfs_iop_permission
| | |
| | --0.64%--kernfs_refresh_inode
| | |
| | --0.56%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --1.20%--lookup_fast
| |
| --0.70%--__d_lookup
| |
| --0.65%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.50%--0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
15.25% 0.00% bin_sysbm [kernel.kallsyms] [k] get_unused_fd_flags
|
---get_unused_fd_flags
|
--14.76%--alloc_fd
|
--13.95%--_raw_spin_lock
native_queued_spin_lock_slowpath
14.76% 0.54% bin_sysbm [kernel.kallsyms] [k] alloc_fd
|
|--14.21%--alloc_fd
| |
| --13.95%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.54%--0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
get_unused_fd_flags
alloc_fd
9.30% 0.17% bin_sysbm [kernel.kallsyms] [k] syscall_exit_to_user_mode
|
--9.13%--syscall_exit_to_user_mode
|
--9.13%--exit_to_user_mode_prepare
|
--8.98%--task_work_run
|
--8.93%--____fput
|
--8.85%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
9.13% 0.00% bin_sysbm [kernel.kallsyms] [k] exit_to_user_mode_prepare
|
---exit_to_user_mode_prepare
|
--8.98%--task_work_run
|
--8.93%--____fput
|
--8.85%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
9.00% 0.07% bin_sysbm [kernel.kallsyms] [k] ____fput
|
--8.93%--____fput
|
--8.85%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
8.98% 0.00% bin_sysbm [kernel.kallsyms] [k] task_work_run
|
---task_work_run
|
--8.93%--____fput
|
--8.85%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
8.85% 0.23% bin_sysbm [kernel.kallsyms] [k] __fput
|
--8.61%--__fput
|
|--7.13%--kernfs_fop_release
| |
| |--5.46%--kernfs_put_open_node.isra.0
| | |
| | --5.19%--mutex_lock
| | |
| | --5.01%--__mutex_lock_slowpath
| | |
| | --4.88%--__mutex_lock.isra.0
| | |
| | --4.57%--osq_lock
| |
| --1.36%--seq_release
| |
| --1.10%--kvfree
| kfree
| |
| --1.02%--obj_cgroup_uncharge
| refill_obj_stock
| |
| --0.67%--drain_obj_stock.isra.0
| |
| --0.51%--__memcg_kmem_uncharge
|
--0.82%--dput
_raw_spin_lock
native_queued_spin_lock_slowpath
8.39% 0.10% bin_sysbm [kernel.kallsyms] [k] link_path_walk.part.0
|
--8.29%--link_path_walk.part.0
|
|--4.47%--inode_permission
| |
| |--2.84%--kernfs_iop_permission
| | |
| | |--1.19%--down_read
| | |
| | |--0.68%--generic_permission
| | |
| | --0.66%--kernfs_refresh_inode
| | |
| | --0.58%--_raw_spin_lock
| | native_queued_spin_lock_slowpath
| |
| --0.57%--up_read
|
--3.49%--walk_component
|
--3.04%--lookup_fast
|
|--1.02%--kernfs_dop_revalidate
| |
| --0.94%--down_read
|
|--0.99%--__d_lookup
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.59%--_raw_spin_lock
8.29% 0.00% swapper [kernel.kallsyms] [k] secondary_startup_64_no_verify
|
---secondary_startup_64_no_verify
|
--8.19%--start_secondary
cpu_startup_entry
|
--8.18%--do_idle
|
--7.83%--call_cpuidle
cpuidle_enter
|
--7.79%--cpuidle_enter_state
|
|--6.14%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.02%--irq_exit_rcu
| | |
| | --3.98%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.87%--run_rebalance_domains
| | |
| | --0.81%--rebalance_domains
| | |
| | --0.65%--load_balance
| |
| --2.06%--__sysvec_apic_timer_interrupt
| |
| --1.85%--hrtimer_interrupt
| |
| |--0.85%--tick_program_event
| | |
| | --0.82%--clockevents_program_event
| | |
| | --0.79%--native_apic_mem_write
| |
| --0.82%--__hrtimer_run_queues
| |
| --0.80%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.51%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
8.29% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry
|
---cpu_startup_entry
|
--8.28%--do_idle
|
--7.90%--call_cpuidle
cpuidle_enter
|
--7.86%--cpuidle_enter_state
|
|--6.19%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.04%--irq_exit_rcu
| | |
| | --4.00%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.88%--run_rebalance_domains
| | |
| | --0.83%--rebalance_domains
| | |
| | --0.66%--load_balance
| |
| --2.09%--__sysvec_apic_timer_interrupt
| |
| --1.88%--hrtimer_interrupt
| |
| |--0.86%--tick_program_event
| | |
| | --0.83%--clockevents_program_event
| | |
| | --0.80%--native_apic_mem_write
| |
| --0.83%--__hrtimer_run_queues
| |
| --0.81%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.52%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
8.28% 0.03% swapper [kernel.kallsyms] [k] do_idle
|
--8.25%--do_idle
|
--7.90%--call_cpuidle
cpuidle_enter
|
--7.86%--cpuidle_enter_state
|
|--6.19%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.04%--irq_exit_rcu
| | |
| | --4.00%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.88%--run_rebalance_domains
| | |
| | --0.83%--rebalance_domains
| | |
| | --0.66%--load_balance
| |
| --2.09%--__sysvec_apic_timer_interrupt
| |
| --1.88%--hrtimer_interrupt
| |
| |--0.86%--tick_program_event
| | |
| | --0.83%--clockevents_program_event
| | |
| | --0.80%--native_apic_mem_write
| |
| --0.83%--__hrtimer_run_queues
| |
| --0.81%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.52%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
8.19% 0.00% swapper [kernel.kallsyms] [k] start_secondary
|
---start_secondary
cpu_startup_entry
|
--8.18%--do_idle
|
--7.83%--call_cpuidle
cpuidle_enter
|
--7.79%--cpuidle_enter_state
|
|--6.14%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.02%--irq_exit_rcu
| | |
| | --3.98%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.87%--run_rebalance_domains
| | |
| | --0.81%--rebalance_domains
| | |
| | --0.65%--load_balance
| |
| --2.06%--__sysvec_apic_timer_interrupt
| |
| --1.85%--hrtimer_interrupt
| |
| |--0.85%--tick_program_event
| | |
| | --0.82%--clockevents_program_event
| | |
| | --0.79%--native_apic_mem_write
| |
| --0.82%--__hrtimer_run_queues
| |
| --0.80%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.51%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
7.90% 0.00% swapper [kernel.kallsyms] [k] call_cpuidle
|
---call_cpuidle
cpuidle_enter
|
--7.86%--cpuidle_enter_state
|
|--6.19%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.04%--irq_exit_rcu
| | |
| | --4.00%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.88%--run_rebalance_domains
| | |
| | --0.83%--rebalance_domains
| | |
| | --0.66%--load_balance
| |
| --2.09%--__sysvec_apic_timer_interrupt
| |
| --1.88%--hrtimer_interrupt
| |
| |--0.86%--tick_program_event
| | |
| | --0.83%--clockevents_program_event
| | |
| | --0.80%--native_apic_mem_write
| |
| --0.83%--__hrtimer_run_queues
| |
| --0.81%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.52%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
7.90% 0.01% swapper [kernel.kallsyms] [k] cpuidle_enter
|
--7.89%--cpuidle_enter
|
--7.86%--cpuidle_enter_state
|
|--6.19%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.04%--irq_exit_rcu
| | |
| | --4.00%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.88%--run_rebalance_domains
| | |
| | --0.83%--rebalance_domains
| | |
| | --0.66%--load_balance
| |
| --2.09%--__sysvec_apic_timer_interrupt
| |
| --1.88%--hrtimer_interrupt
| |
| |--0.86%--tick_program_event
| | |
| | --0.83%--clockevents_program_event
| | |
| | --0.80%--native_apic_mem_write
| |
| --0.83%--__hrtimer_run_queues
| |
| --0.81%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.52%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
7.86% 0.08% swapper [kernel.kallsyms] [k] cpuidle_enter_state
|
--7.78%--cpuidle_enter_state
|
|--6.19%--asm_sysvec_apic_timer_interrupt
| sysvec_apic_timer_interrupt
| |
| |--4.04%--irq_exit_rcu
| | |
| | --4.00%--__softirqentry_text_start
| | |
| | |--3.11%--rcu_core_si
| | | |
| | | --3.03%--rcu_core
| | | |
| | | --3.00%--file_free_rcu
| | | |
| | | --1.63%--kmem_cache_free
| | | |
| | | --0.75%--obj_cgroup_uncharge
| | | refill_obj_stock
| | |
| | --0.88%--run_rebalance_domains
| | |
| | --0.83%--rebalance_domains
| | |
| | --0.66%--load_balance
| |
| --2.09%--__sysvec_apic_timer_interrupt
| |
| --1.88%--hrtimer_interrupt
| |
| |--0.86%--tick_program_event
| | |
| | --0.83%--clockevents_program_event
| | |
| | --0.80%--native_apic_mem_write
| |
| --0.83%--__hrtimer_run_queues
| |
| --0.81%--tick_sched_timer
| |
| --0.73%--tick_sched_handle.isra.0
| |
| --0.72%--update_process_times
|
--1.52%--acpi_idle_enter
|
--1.51%--acpi_idle_do_entry
7.78% 0.51% bin_sysbm [kernel.kallsyms] [k] mutex_lock
|
--7.27%--mutex_lock
|
--7.19%--__mutex_lock_slowpath
|
--6.97%--__mutex_lock.isra.0
|
--6.35%--osq_lock
7.25% 0.06% bin_sysbm [kernel.kallsyms] [k] __mutex_lock_slowpath
|
--7.19%--__mutex_lock_slowpath
|
--6.97%--__mutex_lock.isra.0
|
--6.35%--osq_lock
7.21% 0.19% bin_sysbm [kernel.kallsyms] [k] kernfs_fop_release
|
--7.02%--kernfs_fop_release
|
|--5.46%--kernfs_put_open_node.isra.0
| |
| --5.19%--mutex_lock
| |
| --5.01%--__mutex_lock_slowpath
| |
| --4.88%--__mutex_lock.isra.0
| |
| --4.57%--osq_lock
|
--1.36%--seq_release
|
--1.10%--kvfree
kfree
|
--1.02%--obj_cgroup_uncharge
refill_obj_stock
|
--0.67%--drain_obj_stock.isra.0
|
--0.51%--__memcg_kmem_uncharge
6.97% 0.25% bin_sysbm [kernel.kallsyms] [k] __mutex_lock.isra.0
|
--6.73%--__mutex_lock.isra.0
|
--6.35%--osq_lock
6.57% 6.57% bin_sysbm [kernel.kallsyms] [k] osq_lock
|
|--4.71%--0x7f88520cc609
| 0x56303487c721
| 0x7f88520d73fb
| entry_SYSCALL_64_after_hwframe
| do_syscall_64
| syscall_exit_to_user_mode
| exit_to_user_mode_prepare
| task_work_run
| ____fput
| __fput
| kernfs_fop_release
| kernfs_put_open_node.isra.0
| mutex_lock
| __mutex_lock_slowpath
| |
| --4.57%--__mutex_lock.isra.0
| osq_lock
|
--1.86%--0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
vfs_open
do_dentry_open
kernfs_fop_open
mutex_lock
__mutex_lock_slowpath
|
--1.78%--__mutex_lock.isra.0
osq_lock
6.19% 0.00% swapper [kernel.kallsyms] [k] asm_sysvec_apic_timer_interrupt
|
---asm_sysvec_apic_timer_interrupt
sysvec_apic_timer_interrupt
|
|--4.04%--irq_exit_rcu
| |
| --4.00%--__softirqentry_text_start
| |
| |--3.11%--rcu_core_si
| | |
| | --3.03%--rcu_core
| | |
| | --3.00%--file_free_rcu
| | |
| | --1.63%--kmem_cache_free
| | |
| | --0.75%--obj_cgroup_uncharge
| | refill_obj_stock
| |
| --0.88%--run_rebalance_domains
| |
| --0.83%--rebalance_domains
| |
| --0.66%--load_balance
|
--2.09%--__sysvec_apic_timer_interrupt
|
--1.88%--hrtimer_interrupt
|
|--0.86%--tick_program_event
| |
| --0.83%--clockevents_program_event
| |
| --0.80%--native_apic_mem_write
|
--0.83%--__hrtimer_run_queues
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
6.19% 0.00% swapper [kernel.kallsyms] [k] sysvec_apic_timer_interrupt
|
---sysvec_apic_timer_interrupt
|
|--4.04%--irq_exit_rcu
| |
| --4.00%--__softirqentry_text_start
| |
| |--3.11%--rcu_core_si
| | |
| | --3.03%--rcu_core
| | |
| | --3.00%--file_free_rcu
| | |
| | --1.63%--kmem_cache_free
| | |
| | --0.75%--obj_cgroup_uncharge
| | refill_obj_stock
| |
| --0.88%--run_rebalance_domains
| |
| --0.83%--rebalance_domains
| |
| --0.66%--load_balance
|
--2.09%--__sysvec_apic_timer_interrupt
|
--1.88%--hrtimer_interrupt
|
|--0.86%--tick_program_event
| |
| --0.83%--clockevents_program_event
| |
| --0.80%--native_apic_mem_write
|
--0.83%--__hrtimer_run_queues
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
5.75% 0.80% bin_sysbm [kernel.kallsyms] [k] inode_permission
|
|--4.95%--inode_permission
| |
| |--3.89%--kernfs_iop_permission
| | |
| | |--1.52%--down_read
| | |
| | |--1.31%--kernfs_refresh_inode
| | | |
| | | --1.14%--_raw_spin_lock
| | | native_queued_spin_lock_slowpath
| | |
| | --0.68%--generic_permission
| |
| --0.80%--up_read
|
--0.80%--0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
link_path_walk.part.0
inode_permission
5.46% 0.21% bin_sysbm [kernel.kallsyms] [k] kernfs_put_open_node.isra.0
|
--5.25%--kernfs_put_open_node.isra.0
|
--5.19%--mutex_lock
|
--5.01%--__mutex_lock_slowpath
|
--4.88%--__mutex_lock.isra.0
|
--4.57%--osq_lock
4.24% 0.00% bin_sysbm [kernel.kallsyms] [k] lookup_fast
|
---lookup_fast
|
|--1.69%--__d_lookup
| |
| --1.64%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
|--1.31%--kernfs_dop_revalidate
| |
| --1.22%--down_read
|
--0.72%--_raw_spin_lock
4.18% 0.36% bin_sysbm [kernel.kallsyms] [k] do_dentry_open
|
--3.82%--do_dentry_open
|
--3.21%--kernfs_fop_open
|
--2.50%--mutex_lock
|
--2.18%--__mutex_lock_slowpath
|
--2.10%--__mutex_lock.isra.0
|
--1.78%--osq_lock
4.18% 0.00% bin_sysbm [kernel.kallsyms] [k] vfs_open
|
---vfs_open
do_dentry_open
|
--3.21%--kernfs_fop_open
|
--2.50%--mutex_lock
|
--2.18%--__mutex_lock_slowpath
|
--2.10%--__mutex_lock.isra.0
|
--1.78%--osq_lock
4.05% 0.00% swapper [kernel.kallsyms] [k] irq_exit_rcu
|
---irq_exit_rcu
|
--4.01%--__softirqentry_text_start
|
|--3.11%--rcu_core_si
| |
| --3.03%--rcu_core
| |
| --3.00%--file_free_rcu
| |
| --1.63%--kmem_cache_free
| |
| --0.75%--obj_cgroup_uncharge
| refill_obj_stock
|
--0.89%--run_rebalance_domains
|
--0.83%--rebalance_domains
|
--0.66%--load_balance
4.01% 0.00% swapper [kernel.kallsyms] [k] __softirqentry_text_start
|
--4.01%--__softirqentry_text_start
|
|--3.11%--rcu_core_si
| |
| --3.03%--rcu_core
| |
| --3.00%--file_free_rcu
| |
| --1.63%--kmem_cache_free
| |
| --0.75%--obj_cgroup_uncharge
| refill_obj_stock
|
--0.89%--run_rebalance_domains
|
--0.83%--rebalance_domains
|
--0.66%--load_balance
3.99% 0.18% bin_sysbm [kernel.kallsyms] [k] kernfs_iop_permission
|
--3.81%--kernfs_iop_permission
|
|--1.52%--down_read
|
|--1.31%--kernfs_refresh_inode
| |
| --1.14%--_raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.68%--generic_permission
3.83% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520d736c
|
---0x7f88520d736c
entry_SYSCALL_64_after_hwframe
|
--3.78%--do_syscall_64
__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.83% 0.05% bin_sysbm [kernel.kallsyms] [k] __x64_sys_read
|
--3.78%--__x64_sys_read
ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.78% 0.00% bin_sysbm [kernel.kallsyms] [k] ksys_read
|
---ksys_read
|
--3.62%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.62% 0.07% bin_sysbm [kernel.kallsyms] [k] vfs_read
|
--3.55%--vfs_read
|
--3.15%--new_sync_read
|
--3.02%--kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.49% 0.07% bin_sysbm [kernel.kallsyms] [k] walk_component
|
--3.42%--walk_component
|
--3.04%--lookup_fast
|
|--1.02%--kernfs_dop_revalidate
| |
| --0.94%--down_read
|
|--0.99%--__d_lookup
| _raw_spin_lock
| native_queued_spin_lock_slowpath
|
--0.59%--_raw_spin_lock
3.21% 0.00% bin_sysbm [kernel.kallsyms] [k] kernfs_fop_open
|
---kernfs_fop_open
|
--2.50%--mutex_lock
|
--2.18%--__mutex_lock_slowpath
|
--2.10%--__mutex_lock.isra.0
|
--1.78%--osq_lock
3.15% 0.13% bin_sysbm [kernel.kallsyms] [k] new_sync_read
|
--3.02%--new_sync_read
kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.11% 0.00% swapper [kernel.kallsyms] [k] rcu_core_si
|
---rcu_core_si
|
--3.03%--rcu_core
|
--3.00%--file_free_rcu
|
--1.63%--kmem_cache_free
|
--0.75%--obj_cgroup_uncharge
refill_obj_stock
3.03% 0.00% swapper [kernel.kallsyms] [k] rcu_core
|
--3.02%--rcu_core
|
--3.00%--file_free_rcu
|
--1.63%--kmem_cache_free
|
--0.75%--obj_cgroup_uncharge
refill_obj_stock
3.02% 0.00% bin_sysbm [kernel.kallsyms] [k] kernfs_fop_read_iter
|
---kernfs_fop_read_iter
|
--2.87%--seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
3.00% 1.37% swapper [kernel.kallsyms] [k] file_free_rcu
|
|--1.63%--file_free_rcu
| |
| --1.63%--kmem_cache_free
| |
| --0.75%--obj_cgroup_uncharge
| refill_obj_stock
|
--1.37%--secondary_startup_64_no_verify
start_secondary
cpu_startup_entry
do_idle
call_cpuidle
cpuidle_enter
cpuidle_enter_state
asm_sysvec_apic_timer_interrupt
sysvec_apic_timer_interrupt
irq_exit_rcu
__softirqentry_text_start
rcu_core_si
rcu_core
file_free_rcu
2.87% 0.00% bin_sysbm [kernel.kallsyms] [k] seq_read_iter
|
---seq_read_iter
|
--1.74%--kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
2.74% 2.72% bin_sysbm [kernel.kallsyms] [k] down_read
|
--2.72%--0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
|
--2.11%--link_path_walk.part.0
|
|--1.17%--inode_permission
| kernfs_iop_permission
| down_read
|
--0.94%--walk_component
lookup_fast
kernfs_dop_revalidate
down_read
2.09% 0.00% swapper [kernel.kallsyms] [k] __sysvec_apic_timer_interrupt
|
---__sysvec_apic_timer_interrupt
|
--1.88%--hrtimer_interrupt
|
|--0.86%--tick_program_event
| |
| --0.83%--clockevents_program_event
| |
| --0.80%--native_apic_mem_write
|
--0.83%--__hrtimer_run_queues
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
2.03% 0.50% bin_sysbm [kernel.kallsyms] [k] refill_obj_stock
|
--1.53%--refill_obj_stock
drain_obj_stock.isra.0
|
--0.99%--__memcg_kmem_uncharge
|
--0.84%--page_counter_uncharge
|
--0.76%--page_counter_cancel
1.88% 0.00% swapper [kernel.kallsyms] [k] hrtimer_interrupt
|
--1.88%--hrtimer_interrupt
|
|--0.86%--tick_program_event
| |
| --0.83%--clockevents_program_event
| |
| --0.80%--native_apic_mem_write
|
--0.83%--__hrtimer_run_queues
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
1.88% 0.42% bin_sysbm [kernel.kallsyms] [k] __alloc_file
|
--1.46%--__alloc_file
|
--1.09%--kmem_cache_alloc
1.88% 0.00% bin_sysbm [kernel.kallsyms] [k] alloc_empty_file
|
---alloc_empty_file
__alloc_file
|
--1.09%--kmem_cache_alloc
1.74% 0.00% bin_sysbm [kernel.kallsyms] [k] kvmalloc_node
|
---kvmalloc_node
|
--1.59%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
1.70% 0.08% bin_sysbm [kernel.kallsyms] [k] obj_cgroup_charge
|
--1.62%--obj_cgroup_charge
|
|--0.83%--refill_obj_stock
| drain_obj_stock.isra.0
|
--0.79%--__memcg_kmem_charge
|
--0.65%--page_counter_try_charge
1.69% 0.05% bin_sysbm [kernel.kallsyms] [k] __d_lookup
|
--1.64%--__d_lookup
_raw_spin_lock
native_queued_spin_lock_slowpath
1.63% 0.68% swapper [kernel.kallsyms] [k] kmem_cache_free
|
|--0.94%--kmem_cache_free
| |
| --0.75%--obj_cgroup_uncharge
| refill_obj_stock
|
--0.68%--secondary_startup_64_no_verify
start_secondary
cpu_startup_entry
do_idle
call_cpuidle
cpuidle_enter
cpuidle_enter_state
asm_sysvec_apic_timer_interrupt
sysvec_apic_timer_interrupt
irq_exit_rcu
__softirqentry_text_start
rcu_core_si
rcu_core
file_free_rcu
kmem_cache_free
1.59% 0.13% bin_sysbm [kernel.kallsyms] [k] __kmalloc_node
|
--1.46%--__kmalloc_node
|
--1.32%--obj_cgroup_charge
|
--0.83%--refill_obj_stock
drain_obj_stock.isra.0
1.53% 0.02% swapper [kernel.kallsyms] [k] acpi_idle_enter
|
--1.51%--acpi_idle_enter
acpi_idle_do_entry
1.53% 0.54% bin_sysbm [kernel.kallsyms] [k] drain_obj_stock.isra.0
|
|--0.99%--drain_obj_stock.isra.0
| __memcg_kmem_uncharge
| |
| --0.84%--page_counter_uncharge
| |
| --0.76%--page_counter_cancel
|
--0.54%--0x7f88520cc609
0x56303487c721
1.51% 1.51% swapper [kernel.kallsyms] [k] acpi_idle_do_entry
|
--1.51%--secondary_startup_64_no_verify
start_secondary
cpu_startup_entry
do_idle
call_cpuidle
cpuidle_enter
cpuidle_enter_state
acpi_idle_enter
acpi_idle_do_entry
1.43% 0.34% bin_sysbm [kernel.kallsyms] [k] kmem_cache_alloc
|
--1.09%--kmem_cache_alloc
1.36% 0.00% bin_sysbm [kernel.kallsyms] [k] seq_release
|
---seq_release
|
--1.10%--kvfree
kfree
|
--1.02%--obj_cgroup_uncharge
refill_obj_stock
|
--0.67%--drain_obj_stock.isra.0
|
--0.51%--__memcg_kmem_uncharge
1.35% 0.07% bin_sysbm [kernel.kallsyms] [k] may_open
|
--1.27%--may_open
inode_permission
|
--1.05%--kernfs_iop_permission
|
--0.64%--kernfs_refresh_inode
|
--0.56%--_raw_spin_lock
native_queued_spin_lock_slowpath
1.31% 0.08% bin_sysbm [kernel.kallsyms] [k] kernfs_dop_revalidate
|
--1.22%--kernfs_dop_revalidate
down_read
1.31% 0.16% bin_sysbm [kernel.kallsyms] [k] kernfs_refresh_inode
|
--1.14%--kernfs_refresh_inode
_raw_spin_lock
native_queued_spin_lock_slowpath
1.20% 0.00% bin_sysbm [kernel.kallsyms] [k] obj_cgroup_uncharge
|
---obj_cgroup_uncharge
refill_obj_stock
|
--0.70%--drain_obj_stock.isra.0
|
--0.54%--__memcg_kmem_uncharge
1.18% 0.16% bin_sysbm [kernel.kallsyms] [k] kfree
|
--1.02%--kfree
obj_cgroup_uncharge
refill_obj_stock
|
--0.67%--drain_obj_stock.isra.0
|
--0.51%--__memcg_kmem_uncharge
1.10% 0.00% bin_sysbm [kernel.kallsyms] [k] kvfree
|
---kvfree
kfree
|
--1.02%--obj_cgroup_uncharge
refill_obj_stock
|
--0.67%--drain_obj_stock.isra.0
|
--0.51%--__memcg_kmem_uncharge
1.09% 0.00% bin_sysbm [kernel.kallsyms] [k] dput
|
---dput
|
--1.01%--_raw_spin_lock
native_queued_spin_lock_slowpath
1.02% 1.02% swapper [kernel.kallsyms] [k] native_apic_mem_write
|
---secondary_startup_64_no_verify
|
--1.01%--start_secondary
cpu_startup_entry
do_idle
|
--1.00%--call_cpuidle
cpuidle_enter
cpuidle_enter_state
asm_sysvec_apic_timer_interrupt
sysvec_apic_timer_interrupt
__sysvec_apic_timer_interrupt
|
--0.79%--hrtimer_interrupt
tick_program_event
clockevents_program_event
native_apic_mem_write
0.99% 0.00% bin_sysbm [kernel.kallsyms] [k] __memcg_kmem_uncharge
|
---__memcg_kmem_uncharge
|
--0.84%--page_counter_uncharge
|
--0.76%--page_counter_cancel
0.96% 0.96% bin_sysbm [kernel.kallsyms] [k] up_read
|
---0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
|
--0.65%--link_path_walk.part.0
|
--0.57%--inode_permission
up_read
0.92% 0.00% bin_sysbm [kernel.kallsyms] [k] page_counter_uncharge
|
---page_counter_uncharge
|
--0.84%--page_counter_cancel
0.89% 0.00% swapper [kernel.kallsyms] [k] run_rebalance_domains
|
---run_rebalance_domains
|
--0.83%--rebalance_domains
|
--0.66%--load_balance
0.88% 0.01% swapper [kernel.kallsyms] [k] tick_program_event
|
--0.86%--tick_program_event
|
--0.85%--clockevents_program_event
|
--0.82%--native_apic_mem_write
0.85% 0.00% swapper [kernel.kallsyms] [k] clockevents_program_event
|
--0.85%--clockevents_program_event
|
--0.82%--native_apic_mem_write
0.84% 0.84% bin_sysbm [kernel.kallsyms] [k] page_counter_cancel
|
---0x7f88520cc609
0x56303487c721
0.83% 0.16% swapper [kernel.kallsyms] [k] rebalance_domains
|
--0.67%--rebalance_domains
|
--0.67%--load_balance
0.83% 0.01% swapper [kernel.kallsyms] [k] __hrtimer_run_queues
|
--0.82%--__hrtimer_run_queues
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
0.82% 0.01% swapper [kernel.kallsyms] [k] tick_sched_timer
|
--0.81%--tick_sched_timer
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
0.81% 0.81% bin_sysbm [kernel.kallsyms] [k] generic_permission
|
---0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
link_path_walk.part.0
inode_permission
|
--0.68%--kernfs_iop_permission
generic_permission
0.79% 0.00% bin_sysbm [kernel.kallsyms] [k] __memcg_kmem_charge
|
---__memcg_kmem_charge
|
--0.65%--page_counter_try_charge
0.75% 0.34% swapper [kernel.kallsyms] [k] refill_obj_stock
0.75% 0.00% swapper [kernel.kallsyms] [k] obj_cgroup_uncharge
|
---obj_cgroup_uncharge
refill_obj_stock
0.74% 0.01% swapper [kernel.kallsyms] [k] tick_sched_handle.isra.0
|
--0.73%--tick_sched_handle.isra.0
|
--0.72%--update_process_times
0.74% 0.04% swapper [kernel.kallsyms] [k] update_process_times
|
--0.70%--update_process_times
0.73% 0.55% bin_sysbm [kernel.kallsyms] [k] kmem_cache_free
0.73% 0.73% bin_sysbm [kernel.kallsyms] [k] page_counter_try_charge
0.67% 0.23% swapper [kernel.kallsyms] [k] load_balance
0.62% 0.62% bin_sysbm [kernel.kallsyms] [k] memset
0.60% 0.03% bin_sysbm [kernel.kallsyms] [k] step_into
|
--0.57%--step_into
0.51% 0.51% bin_sysbm [kernel.kallsyms] [k] lockref_put_return
|
---0x7379732f73656369
0x7f88520d7ad4
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_openat
do_sys_open
do_sys_openat2
do_filp_open
path_openat
0.47% 0.00% bin_sysbm [kernel.kallsyms] [k] putname
0.46% 0.46% bin_sysbm [kernel.kallsyms] [k] get_obj_cgroup_from_current
0.44% 0.02% swapper [kernel.kallsyms] [k] scheduler_tick
0.44% 0.02% swapper [kernel.kallsyms] [k] find_busiest_group
0.44% 0.44% bin_sysbm [kernel.kallsyms] [k] kernfs_put_active
0.42% 0.12% bin_sysbm [kernel.kallsyms] [k] kernfs_seq_show
0.42% 0.23% swapper [kernel.kallsyms] [k] update_sd_lb_stats.constprop.0
0.42% 0.00% swapper [kernel.kallsyms] [k] perf_event_task_tick
0.41% 0.00% swapper [kernel.kallsyms] [k] amd_pmu_disable_all
0.41% 0.00% swapper [kernel.kallsyms] [k] perf_pmu_disable.part.0
0.41% 0.00% swapper [kernel.kallsyms] [k] x86_pmu_disable
0.40% 0.24% swapper [kernel.kallsyms] [k] drain_obj_stock.isra.0
0.40% 0.11% bin_sysbm [kernel.kallsyms] [k] rw_verify_area
0.39% 0.29% bin_sysbm [kernel.kallsyms] [k] lockref_get
0.39% 0.00% bin_sysbm [kernel.kallsyms] [k] path_get
0.38% 0.38% bin_sysbm [kernel.kallsyms] [k] kernfs_get_active
0.37% 0.00% bin_sysbm [kernel.kallsyms] [k] kernfs_seq_stop
0.34% 0.02% swapper [kernel.kallsyms] [k] x86_pmu_disable_all
0.34% 0.00% bin_sysbm [kernel.kallsyms] [k] seq_open
0.33% 0.00% bin_sysbm [kernel.kallsyms] [k] terminate_walk
0.33% 0.00% bin_sysbm [kernel.kallsyms] [k] kernfs_seq_start
0.32% 0.32% swapper [kernel.kallsyms] [k] native_read_msr
0.31% 0.31% bin_sysbm [kernel.kallsyms] [k] _raw_spin_lock_irq
0.30% 0.08% bin_sysbm [kernel.kallsyms] [k] sysfs_kf_seq_show
0.30% 0.30% bin_sysbm [kernel.kallsyms] [k] apparmor_file_free_security
0.30% 0.30% bin_sysbm [kernel.kallsyms] [k] mutex_spin_on_owner
0.29% 0.14% bin_sysbm [kernel.kallsyms] [k] security_file_permission
0.27% 0.00% bin_sysbm [kernel.kallsyms] [k] getname
0.27% 0.00% bin_sysbm [kernel.kallsyms] [k] getname_flags
0.27% 0.27% bin_sysbm [kernel.kallsyms] [k] mutex_unlock
0.26% 0.26% bin_sysbm [kernel.kallsyms] [k] __cond_resched
0.24% 0.24% swapper [kernel.kallsyms] [k] rcu_sched_clock_irq
0.24% 0.00% bin_sysbm [kernel.kallsyms] [k] security_file_alloc
0.22% 0.06% bin_sysbm [kernel.kallsyms] [k] dev_attr_show
0.22% 0.22% bin_sysbm [kernel.kallsyms] [k] strcmp
0.22% 0.00% bin_sysbm [kernel.kallsyms] [k] security_file_free
0.22% 0.00% swapper [kernel.kallsyms] [k] cpuidle_select
0.20% 0.14% swapper [kernel.kallsyms] [k] menu_select
0.20% 0.20% bin_sysbm libpthread-2.31.so [.] 0x0000000000014ad4
0.17% 0.17% bin_sysbm [kernel.kallsyms] [k] _find_next_bit.constprop.0
0.17% 0.09% bin_sysbm [kernel.kallsyms] [k] __mod_memcg_lruvec_state
0.16% 0.00% swapper [kernel.kallsyms] [k] __memcg_kmem_uncharge
0.16% 0.00% swapper [kernel.kallsyms] [k] page_counter_uncharge
0.16% 0.16% swapper [kernel.kallsyms] [k] page_counter_cancel
0.16% 0.08% bin_sysbm [kernel.kallsyms] [k] get_page_from_freelist
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] __slab_alloc
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] ___slab_alloc
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] allocate_slab
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] alloc_pages_current
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] __alloc_pages_nodemask
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] core_id_show
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] sysfs_emit
0.16% 0.00% bin_sysbm [kernel.kallsyms] [k] vscnprintf
0.16% 0.16% bin_sysbm libpthread-2.31.so [.] 0x0000000000014003
0.16% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520d7003
0.16% 0.16% swapper [kernel.kallsyms] [k] __slab_free
0.15% 0.15% bin_sysbm [kernel.kallsyms] [k] lockref_get_not_dead
0.15% 0.00% bin_sysbm [kernel.kallsyms] [k] try_to_unlazy
0.15% 0.00% bin_sysbm [kernel.kallsyms] [k] __legitimize_path.isra.0
0.15% 0.00% swapper [kernel.kallsyms] [k] cpumask_next_and
0.15% 0.15% bin_sysbm [kernel.kallsyms] [k] locks_remove_file
0.15% 0.07% bin_sysbm [kernel.kallsyms] [k] refill_stock
0.15% 0.14% bin_sysbm [kernel.kallsyms] [k] security_file_open
0.15% 0.15% bin_sysbm [kernel.kallsyms] [k] __d_lookup_rcu
0.14% 0.00% bin_sysbm [kernel.kallsyms] [k] try_charge
0.14% 0.14% bin_sysbm [kernel.kallsyms] [k] propagate_protected_usage
0.13% 0.13% bin_sysbm [kernel.kallsyms] [k] rcu_all_qs
0.12% 0.12% swapper [kernel.kallsyms] [k] ktime_get
0.11% 0.02% bin_sysbm [kernel.kallsyms] [k] security_task_getsecid
0.11% 0.00% bin_sysbm [kernel.kallsyms] [k] ima_file_check
0.10% 0.02% bin_sysbm [kernel.kallsyms] [k] __check_object_size
0.10% 0.10% swapper [kernel.kallsyms] [k] read_tsc
0.10% 0.00% swapper [kernel.kallsyms] [k] x86_64_start_kernel
0.10% 0.00% swapper [kernel.kallsyms] [k] x86_64_start_reservations
0.10% 0.00% swapper [kernel.kallsyms] [k] start_kernel
0.10% 0.00% swapper [kernel.kallsyms] [k] arch_call_rest_init
0.10% 0.00% swapper [kernel.kallsyms] [k] rest_init
0.10% 0.10% swapper [kernel.kallsyms] [k] find_next_and_bit
0.09% 0.09% bin_sysbm [kernel.kallsyms] [k] aa_get_task_label
0.09% 0.00% bin_sysbm [kernel.kallsyms] [k] apparmor_task_getsecid
0.09% 0.00% bin_sysbm libc-2.31.so [.] 0x00007f8851fd689b
0.09% 0.09% swapper [kernel.kallsyms] [k] ktime_get_update_offsets_now
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] rcu_read_unlock_strict
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] memcpy
0.08% 0.00% bin_sysbm [kernel.kallsyms] [k] drain_stock.isra.0
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] __mod_memcg_state
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] clear_page_rep
0.08% 0.08% migration/91 [kernel.kallsyms] [k] balance_rt
0.08% 0.00% migration/91 [kernel.kallsyms] [k] ret_from_fork
0.08% 0.00% migration/91 [kernel.kallsyms] [k] kthread
0.08% 0.00% migration/91 [kernel.kallsyms] [k] smpboot_thread_fn
0.08% 0.00% migration/91 [kernel.kallsyms] [k] schedule
0.08% 0.08% bin_sysbm bin_sysbm [.] 0x000000000000144c
0.08% 0.00% bin_sysbm bin_sysbm [.] 0x000056303487c44c
0.08% 0.08% bin_sysbm libpthread-2.31.so [.] 0x0000000000014054
0.08% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520d7054
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] mntput_no_expire
0.08% 0.00% bin_sysbm [kernel.kallsyms] [k] mntput
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] security_inode_permission
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] __virt_addr_valid
0.08% 0.00% bin_sysbm [kernel.kallsyms] [k] strncpy_from_user
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] common_file_perm
0.08% 0.00% bin_sysbm [kernel.kallsyms] [k] apparmor_file_permission
0.08% 0.08% swapper [kernel.kallsyms] [k] menu_reflect
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] vsnprintf
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] locks_remove_posix
0.08% 0.00% bin_sysbm [kernel.kallsyms] [k] filp_close
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] osq_unlock
0.08% 0.08% swapper [kernel.kallsyms] [k] rcu_cblist_dequeue
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] kernfs_seq_next
0.08% 0.08% bin_sysbm [kernel.kallsyms] [k] legitimize_root
0.07% 0.07% bin_sysbm [kernel.kallsyms] [k] set_root
0.07% 0.00% bin_sysbm [kernel.kallsyms] [k] path_init
0.07% 0.00% bin_sysbm [kernel.kallsyms] [k] nd_jump_root
0.07% 0.07% swapper [kernel.kallsyms] [k] _find_next_bit.constprop.0
0.07% 0.07% bin_sysbm [kernel.kallsyms] [k] apparmor_file_alloc_security
0.07% 0.07% swapper [kernel.kallsyms] [k] native_write_msr
0.07% 0.07% bin_sysbm [kernel.kallsyms] [k] __fsnotify_parent
0.07% 0.00% bin_sysbm [kernel.kallsyms] [k] schedule
0.07% 0.01% bin_sysbm [kernel.kallsyms] [k] __schedule
0.07% 0.00% bin_sysbm [kernel.kallsyms] [k] __x64_sys_sched_yield
0.06% 0.06% bin_sysbm [kernel.kallsyms] [k] mem_cgroup_from_task
0.06% 0.06% bin_sysbm [kernel.kallsyms] [k] _raw_spin_lock_irqsave
0.06% 0.00% bin_sysbm [kernel.kallsyms] [k] do_sched_yield
0.05% 0.05% bin_sysbm [kernel.kallsyms] [k] make_kuid
0.05% 0.05% swapper [kernel.kallsyms] [k] tick_nohz_next_event
0.05% 0.03% swapper [kernel.kallsyms] [k] update_blocked_averages
0.05% 0.00% swapper [kernel.kallsyms] [k] tick_nohz_get_sleep_length
0.05% 0.01% swapper [kernel.kallsyms] [k] tick_nohz_irq_exit
0.04% 0.04% bin_sysbm [kernel.kallsyms] [k] __lookup_mnt
0.04% 0.01% swapper [kernel.kallsyms] [k] irq_enter_rcu
0.04% 0.04% swapper [kernel.kallsyms] [k] __mod_memcg_state
0.04% 0.04% rcu_sched [kernel.kallsyms] [k] update_nohz_stats
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] ret_from_fork
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] kthread
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] rcu_gp_kthread
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] schedule_timeout
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] schedule
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] __schedule
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] pick_next_task_fair
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] newidle_balance
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] load_balance
0.04% 0.00% rcu_sched [kernel.kallsyms] [k] find_busiest_group
0.04% 0.00% swapper [kernel.kallsyms] [k] asm_sysvec_call_function_single
0.04% 0.00% swapper [kernel.kallsyms] [k] sysvec_call_function_single
0.04% 0.01% bin_sysbm [kernel.kallsyms] [k] pick_next_task_fair
0.03% 0.00% swapper [kernel.kallsyms] [k] sched_clock
0.03% 0.00% swapper [kernel.kallsyms] [k] sched_clock_cpu
0.03% 0.03% swapper [kernel.kallsyms] [k] _raw_spin_lock
0.03% 0.00% swapper [kernel.kallsyms] [k] tick_irq_enter
0.03% 0.03% swapper [kernel.kallsyms] [k] pvclock_clocksource_read
0.03% 0.00% swapper [kernel.kallsyms] [k] kvm_sched_clock_read
0.03% 0.03% swapper [kernel.kallsyms] [k] llist_reverse_order
0.03% 0.00% swapper [kernel.kallsyms] [k] __sysvec_call_function_single
0.03% 0.00% swapper [kernel.kallsyms] [k] generic_smp_call_function_single_interrupt
0.03% 0.00% bin_sysbm [kernel.kallsyms] [k] asm_sysvec_apic_timer_interrupt
0.03% 0.00% bin_sysbm [kernel.kallsyms] [k] sysvec_apic_timer_interrupt
0.02% 0.00% swapper [kernel.kallsyms] [k] arch_cpu_idle_enter
0.02% 0.00% bin_sysbm [kernel.kallsyms] [k] __softirqentry_text_start
0.02% 0.00% bin_sysbm [kernel.kallsyms] [k] irq_exit_rcu
0.02% 0.02% swapper [kernel.kallsyms] [k] error_return
0.02% 0.02% swapper [kernel.kallsyms] [k] tsc_verify_tsc_adjust
0.02% 0.02% swapper [kernel.kallsyms] [k] __update_load_avg_cfs_rq
0.02% 0.00% swapper [kernel.kallsyms] [k] hrtimer_start_range_ns
0.02% 0.00% swapper [kernel.kallsyms] [k] hrtimer_reprogram
0.02% 0.00% bin_sysbm [kernel.kallsyms] [k] load_balance
0.02% 0.00% bin_sysbm [kernel.kallsyms] [k] find_busiest_group
0.02% 0.01% swapper [kernel.kallsyms] [k] update_load_avg
0.02% 0.00% swapper [kernel.kallsyms] [k] note_gp_changes
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] run_rebalance_domains
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] update_sd_lb_stats.constprop.0
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] update_blocked_averages
0.01% 0.00% swapper [kernel.kallsyms] [k] _nohz_idle_balance
0.01% 0.01% swapper [kernel.kallsyms] [k] lapic_next_event
0.01% 0.00% swapper [kernel.kallsyms] [k] sched_clock_idle_sleep_event
0.01% 0.01% kworker/75:1-mm [kernel.kallsyms] [k] __rdgsbase_inactive
0.01% 0.00% swapper [kernel.kallsyms] [k] schedule_idle
0.01% 0.00% swapper [kernel.kallsyms] [k] __schedule
0.01% 0.00% swapper [kernel.kallsyms] [k] tick_nohz_idle_exit
0.01% 0.00% swapper [kernel.kallsyms] [k] __tick_nohz_idle_restart_tick
0.01% 0.01% swapper [kernel.kallsyms] [k] nr_iowait_cpu
0.01% 0.01% swapper [kernel.kallsyms] [k] _raw_spin_lock_irqsave
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] update_curr
0.01% 0.01% bin_sysbm [kernel.kallsyms] [k] update_rq_clock
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] expand_files
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] newidle_balance
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] update_nohz_stats
0.01% 0.01% kworker/79:1-mm [kernel.kallsyms] [k] psi_group_change
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] ret_from_fork
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] kthread
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] worker_thread
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] schedule
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] __schedule
0.01% 0.00% kworker/79:1-mm [kernel.kallsyms] [k] psi_task_switch
0.01% 0.00% swapper [kernel.kallsyms] [k] pick_next_task_fair
0.01% 0.01% swapper [kernel.kallsyms] [k] cpuidle_governor_latency_req
0.01% 0.01% bin_sysbm [kernel.kallsyms] [k] apparmor_file_open
0.01% 0.01% kworker/59:1-mm [kernel.kallsyms] [k] update_sd_lb_stats.constprop.0
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] ret_from_fork
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] kthread
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] worker_thread
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] schedule
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] __schedule
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] pick_next_task_fair
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] newidle_balance
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] load_balance
0.01% 0.00% kworker/59:1-mm [kernel.kallsyms] [k] find_busiest_group
0.01% 0.01% swapper [kernel.kallsyms] [k] __note_gp_changes
0.01% 0.01% swapper [kernel.kallsyms] [k] __remove_hrtimer
0.01% 0.01% swapper [kernel.kallsyms] [k] update_group_capacity
0.01% 0.00% swapper [kernel.kallsyms] [k] update_rq_clock
0.01% 0.01% swapper [kernel.kallsyms] [k] idle_cpu
0.01% 0.01% swapper [kernel.kallsyms] [k] cpuidle_reflect
0.01% 0.01% swapper [kernel.kallsyms] [k] irqentry_exit
0.01% 0.00% swapper [kernel.kallsyms] [k] hrtimer_update_next_event
0.01% 0.00% bin_sysbm libc-2.31.so [.] 0x00007f8851ef80b3
0.01% 0.00% bin_sysbm bin_sysbm [.] 0x000056303487cb61
0.01% 0.00% bin_sysbm bin_sysbm [.] 0x000056303487ca0f
0.01% 0.00% bin_sysbm libpthread-2.31.so [.] 0x00007f88520cd2d3
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] asm_exc_page_fault
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] exc_page_fault
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] do_user_addr_fault
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] handle_mm_fault
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] __handle_mm_fault
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] lru_cache_add_inactive_or_unevictable
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] lru_cache_add
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] __pagevec_lru_add
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] __mod_lruvec_state
0.01% 0.01% swapper [kernel.kallsyms] [k] put_cpu_partial
0.01% 0.01% swapper [kernel.kallsyms] [k] rcu_eqs_enter.constprop.0
0.01% 0.01% swapper [kernel.kallsyms] [k] _raw_spin_trylock
0.01% 0.01% swapper [kernel.kallsyms] [k] get_cpu_device
0.01% 0.01% bin_sysbm [kernel.kallsyms] [k] native_apic_mem_write
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] rebalance_domains
0.01% 0.01% swapper [kernel.kallsyms] [k] __hrtimer_next_event_base
0.01% 0.01% swapper [kernel.kallsyms] [k] tick_check_broadcast_expired
0.01% 0.01% migration/85 [kernel.kallsyms] [k] schedule
0.01% 0.00% migration/85 [kernel.kallsyms] [k] ret_from_fork
0.01% 0.00% migration/85 [kernel.kallsyms] [k] kthread
0.01% 0.01% swapper [kernel.kallsyms] [k] kvm_guest_apic_eoi_write
0.01% 0.01% swapper [kernel.kallsyms] [k] sched_idle_set_state
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] __sysvec_apic_timer_interrupt
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] hrtimer_interrupt
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] tick_program_event
0.01% 0.00% bin_sysbm [kernel.kallsyms] [k] clockevents_program_event
0.01% 0.01% swapper [kernel.kallsyms] [k] tick_nohz_tick_stopped
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_idle_enter
0.00% 0.00% swapper [kernel.kallsyms] [k] tick_nohz_idle_stop_tick
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] clear_buddies
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] pick_next_entity
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_segcblist_ready_cbs
0.00% 0.00% swapper [kernel.kallsyms] [k] get_nohz_timer_target
0.00% 0.00% swapper [kernel.kallsyms] [k] run_timer_softirq
0.00% 0.00% swapper [kernel.kallsyms] [k] __run_timers.part.0
0.00% 0.00% swapper [kernel.kallsyms] [k] call_timer_fn
0.00% 0.00% swapper [kernel.kallsyms] [k] blk_stat_timer_fn
0.00% 0.00% swapper [kernel.kallsyms] [k] wb_timer_fn
0.00% 0.00% swapper [kernel.kallsyms] [k] rwb_arm_timer
0.00% 0.00% swapper [kernel.kallsyms] [k] mod_timer
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] note_gp_changes
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] rcu_core_si
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] rcu_core
0.00% 0.00% swapper [kernel.kallsyms] [k] tick_sched_do_timer
0.00% 0.00% swapper [kernel.kallsyms] [k] tick_do_update_jiffies64
0.00% 0.00% swapper [kernel.kallsyms] [k] update_wall_time
0.00% 0.00% swapper [kernel.kallsyms] [k] timekeeping_advance
0.00% 0.00% swapper [kernel.kallsyms] [k] acpi_processor_ffh_cstate_enter
0.00% 0.00% sshd [kernel.kallsyms] [k] sock_poll
0.00% 0.00% sshd [unknown] [k] 0000000000000000
0.00% 0.00% sshd [unknown] [k] 0x000055a63851e470
0.00% 0.00% sshd libc-2.31.so [.] 0x00007f661ce310da
0.00% 0.00% sshd [kernel.kallsyms] [k] entry_SYSCALL_64_after_hwframe
0.00% 0.00% sshd [kernel.kallsyms] [k] do_syscall_64
0.00% 0.00% sshd [kernel.kallsyms] [k] __x64_sys_select
0.00% 0.00% sshd [kernel.kallsyms] [k] kern_select
0.00% 0.00% sshd [kernel.kallsyms] [k] core_sys_select
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_dynticks_eqs_enter
0.00% 0.00% swapper [kernel.kallsyms] [k] __msecs_to_jiffies
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] syscall_enter_from_user_mode
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] cpuacct_charge
0.00% 0.00% bin_sysbm libc-2.31.so [.] 0x000000000010589b
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] entry_SYSCALL_64_safe_stack
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] fpregs_assert_state_consistent
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] cgroup_rstat_updated
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] __cgroup_account_cputime
0.00% 0.00% swapper [kernel.kallsyms] [k] update_ts_time_stats
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] update_min_vruntime
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_advance_cbs
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_accelerate_cbs
0.00% 0.00% swapper [kernel.kallsyms] [k] __hrtimer_get_next_event
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] rcu_advance_cbs
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] error_return
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] asm_sysvec_call_function_single
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] sysvec_call_function_single
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] __sysvec_call_function_single
0.00% 0.00% swapper [kernel.kallsyms] [k] pm_qos_read_value
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_segcblist_pend_cbs
0.00% 0.00% swapper [kernel.kallsyms] [k] __bitmap_and
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] update_group_capacity
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] group_balance_cpu
0.00% 0.00% swapper [kernel.kallsyms] [k] enqueue_hrtimer
0.00% 0.00% swapper [kernel.kallsyms] [k] propagate_protected_usage
0.00% 0.00% swapper [kernel.kallsyms] [k] local_touch_nmi
0.00% 0.00% swapper [kernel.kallsyms] [k] timerqueue_add
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] __bitmap_and
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] __update_load_avg_cfs_rq
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_nmi_exit
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_read_unlock_strict
0.00% 0.00% swapper [kernel.kallsyms] [k] rcu_segcblist_accelerate
0.00% 0.00% swapper [kernel.kallsyms] [k] __update_load_avg_se
0.00% 0.00% swapper [kernel.kallsyms] [k] finish_task_switch
0.00% 0.00% swapper [kernel.kallsyms] [k] trigger_load_balance
0.00% 0.00% swapper [kernel.kallsyms] [k] native_send_call_func_single_ipi
0.00% 0.00% swapper [kernel.kallsyms] [k] kick_ilb
0.00% 0.00% swapper [kernel.kallsyms] [k] smp_call_function_single_async
0.00% 0.00% swapper [kernel.kallsyms] [k] generic_exec_single
0.00% 0.00% swapper [kernel.kallsyms] [k] __smp_call_single_queue
0.00% 0.00% bin_sysbm [kernel.kallsyms] [k] ktime_get
0.00% 0.00% swapper [kernel.kallsyms] [k] rb_insert_color
0.00% 0.00% swapper [kernel.kallsyms] [k] run_posix_cpu_timers
0.00% 0.00% swapper [kernel.kallsyms] [k] profile_tick
0.00% 0.00% swapper [kernel.kallsyms] [k] nohz_balance_exit_idle
0.00% 0.00% swapper [kernel.kallsyms] [k] _raw_spin_lock_irq
0.00% 0.00% perf libc-2.31.so [.] 0x00007f4a016440b3
0.00% 0.00% perf perf [.] 0x0000559a782e6b7c
0.00% 0.00% perf perf [.] 0x0000559a783755ff
0.00% 0.00% perf perf [.] 0x0000559a78300622
0.00% 0.00% perf [kernel.kallsyms] [k] entry_SYSCALL_64_after_hwframe
0.00% 0.00% perf [kernel.kallsyms] [k] do_syscall_64
0.00% 0.00% perf [kernel.kallsyms] [k] asm_sysvec_apic_timer_interrupt
0.00% 0.00% perf [kernel.kallsyms] [k] sysvec_apic_timer_interrupt
0.00% 0.00% perf [kernel.kallsyms] [k] __sysvec_apic_timer_interrupt
0.00% 0.00% perf [kernel.kallsyms] [k] hrtimer_interrupt
0.00% 0.00% perf [kernel.kallsyms] [k] nohz_balance_exit_idle
0.00% 0.00% perf perf [.] 0x0000559a7838aac4
0.00% 0.00% perf libc-2.31.so [.] 0x00007f4a017229cb
0.00% 0.00% perf [kernel.kallsyms] [k] __x64_sys_sched_setaffinity
0.00% 0.00% perf [kernel.kallsyms] [k] sched_setaffinity
0.00% 0.00% perf [kernel.kallsyms] [k] __set_cpus_allowed_ptr
0.00% 0.00% perf [kernel.kallsyms] [k] affine_move_task
0.00% 0.00% perf [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
0.00% 0.00% perf [kernel.kallsyms] [k] __hrtimer_run_queues
0.00% 0.00% perf [kernel.kallsyms] [k] tick_sched_timer
0.00% 0.00% perf [kernel.kallsyms] [k] tick_sched_handle.isra.0
0.00% 0.00% perf [kernel.kallsyms] [k] update_process_times
0.00% 0.00% perf [kernel.kallsyms] [k] scheduler_tick
0.00% 0.00% perf [kernel.kallsyms] [k] trigger_load_balance
0.00% 0.00% perf perf [.] 0x0000559a7838ac1a
0.00% 0.00% perf libc-2.31.so [.] 0x00007f4a0173450b
0.00% 0.00% perf [kernel.kallsyms] [k] __x64_sys_ioctl
0.00% 0.00% perf [kernel.kallsyms] [k] perf_ioctl
0.00% 0.00% perf [kernel.kallsyms] [k] _perf_ioctl
0.00% 0.00% perf [kernel.kallsyms] [k] generic_exec_single
0.00% 0.00% perf [kernel.kallsyms] [k] perf_event_for_each_child
0.00% 0.00% perf [kernel.kallsyms] [k] _perf_event_enable
0.00% 0.00% perf [kernel.kallsyms] [k] event_function_call
0.00% 0.00% perf [kernel.kallsyms] [k] smp_call_function_single
0.00% 0.00% perf [kernel.kallsyms] [k] native_apic_mem_write
0.00% 0.00% perf [kernel.kallsyms] [k] tick_program_event
0.00% 0.00% perf [kernel.kallsyms] [k] clockevents_program_event
0.00% 0.00% perf [kernel.kallsyms] [k] syscall_exit_to_user_mode
0.00% 0.00% perf [kernel.kallsyms] [k] mutex_unlock
0.00% 0.00% perf [kernel.kallsyms] [k] put_ctx
0.00% 0.00% perf [kernel.kallsyms] [k] __fget_light
0.00% 0.00% perf [kernel.kallsyms] [k] fpregs_assert_state_consistent
0.00% 0.00% perf [kernel.kallsyms] [k] exit_to_user_mode_prepare
0.00% 0.00% perf perf [.] 0x000000000036dac2
0.00% 0.00% perf perf [.] 0x0000559a78491ac2
0.00% 0.00% perf perf [.] 0x0000000000266c33
0.00% 0.00% perf perf [.] 0x0000559a7838ac33
# Samples: 0 of event 'dummy:HG'
# Event count (approx.): 0
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ............. ......
#
#
# (Tip: List events using substring match: perf list <keyword>)
#
next prev parent reply other threads:[~2021-04-19 7:56 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-09 1:14 [PATCH v3 0/4] kernfs: proposed locking and concurrency improvement Ian Kent 2021-04-09 1:14 ` [PATCH v3 1/4] kernfs: move revalidate to be near lookup Ian Kent 2021-04-09 3:39 ` kernel test robot 2021-04-09 3:39 ` kernel test robot 2021-04-09 1:15 ` [PATCH v3 2/4] kernfs: use VFS negative dentry caching Ian Kent 2021-04-09 1:35 ` Al Viro 2021-04-09 8:26 ` Ian Kent 2021-04-09 9:34 ` Ian Kent 2021-04-09 1:15 ` [PATCH v3 3/4] kernfs: switch kernfs to use an rwsem Ian Kent 2021-04-09 1:15 ` [PATCH v3 4/4] kernfs: use i_lock to protect concurrent inode updates Ian Kent 2021-04-19 7:56 ` Fox Chen [this message] 2021-04-19 12:25 ` [PATCH v3 0/4] kernfs: proposed locking and concurrency improvement Ian Kent
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