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From: Suren Baghdasaryan <surenb@google.com>
To: Roman Gushchin <roman.gushchin@linux.dev>
Cc: akpm@linux-foundation.org, kent.overstreet@linux.dev,
	mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org,
	mgorman@suse.de, dave@stgolabs.net, willy@infradead.org,
	liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com,
	peterz@infradead.org, juri.lelli@redhat.com,
	ldufour@linux.ibm.com, catalin.marinas@arm.com, will@kernel.org,
	arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com,
	dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com,
	david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org,
	masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org,
	tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org,
	paulmck@kernel.org, pasha.tatashin@soleen.com,
	yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com,
	hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org,
	ndesaulniers@google.com, gregkh@linuxfoundation.org,
	ebiggers@google.com, ytcoode@gmail.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com,
	vschneid@redhat.com, cl@linux.com, penberg@kernel.org,
	iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com,
	elver@google.com, dvyukov@google.com, shakeelb@google.com,
	songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com,
	minchan@google.com, kaleshsingh@google.com,
	kernel-team@android.com, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, iommu@lists.linux.dev,
	linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-modules@vger.kernel.org,
	kasan-dev@googlegroups.com, cgroups@vger.kernel.org
Subject: Re: [PATCH 00/40] Memory allocation profiling
Date: Mon, 1 May 2023 11:08:05 -0700	[thread overview]
Message-ID: <CAJuCfpHU3ZMsNuqi1gSxzAWKr2D3VkiaTY0BEUQgM-QHNxRtSg@mail.gmail.com> (raw)
In-Reply-To: <ZE/7FZbd31qIzrOc@P9FQF9L96D>

On Mon, May 1, 2023 at 10:47 AM Roman Gushchin <roman.gushchin@linux.dev> wrote:
>
> On Mon, May 01, 2023 at 09:54:10AM -0700, Suren Baghdasaryan wrote:
> > Performance overhead:
> > To evaluate performance we implemented an in-kernel test executing
> > multiple get_free_page/free_page and kmalloc/kfree calls with allocation
> > sizes growing from 8 to 240 bytes with CPU frequency set to max and CPU
> > affinity set to a specific CPU to minimize the noise. Below is performance
> > comparison between the baseline kernel, profiling when enabled, profiling
> > when disabled (nomem_profiling=y) and (for comparison purposes) baseline
> > with CONFIG_MEMCG_KMEM enabled and allocations using __GFP_ACCOUNT:
> >
> >                       kmalloc                 pgalloc
> > Baseline (6.3-rc7)    9.200s                  31.050s
> > profiling disabled    9.800 (+6.52%)          32.600 (+4.99%)
> > profiling enabled     12.500 (+35.87%)        39.010 (+25.60%)
> > memcg_kmem enabled    41.400 (+350.00%)       70.600 (+127.38%)
>
> Hm, this makes me think we have a regression with memcg_kmem in one of
> the recent releases. When I measured it a couple of years ago, the overhead
> was definitely within 100%.
>
> Do you understand what makes the your profiling drastically faster than kmem?

I haven't profiled or looked into kmem overhead closely but I can do
that. I just wanted to see how the overhead compares with the existing
accounting mechanisms.

For kmalloc, the overhead is low because after we create the vector of
slab_ext objects (which is the same as what memcg_kmem does), memory
profiling just increments a lazy counter (which in many cases would be
a per-cpu counter). memcg_kmem operates on cgroup hierarchy with
additional overhead associated with that. I'm guessing that's the
reason for the big difference between these mechanisms but, I didn't
look into the details to understand memcg_kmem performance.

>
> Thanks!

WARNING: multiple messages have this Message-ID (diff)
From: Suren Baghdasaryan <surenb@google.com>
To: Roman Gushchin <roman.gushchin@linux.dev>
Cc: akpm@linux-foundation.org, kent.overstreet@linux.dev,
	mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org,
	mgorman@suse.de, dave@stgolabs.net, willy@infradead.org,
	liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com,
	peterz@infradead.org, juri.lelli@redhat.com,
	ldufour@linux.ibm.com, catalin.marinas@arm.com, will@kernel.org,
	arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com,
	dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com,
	david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org,
	masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org,
	tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org,
	paulmck@kernel.org, pasha.tatashin@soleen.com,
	yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com,
	hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org
Subject: Re: [PATCH 00/40] Memory allocation profiling
Date: Mon, 1 May 2023 11:08:05 -0700	[thread overview]
Message-ID: <CAJuCfpHU3ZMsNuqi1gSxzAWKr2D3VkiaTY0BEUQgM-QHNxRtSg@mail.gmail.com> (raw)
In-Reply-To: <ZE/7FZbd31qIzrOc@P9FQF9L96D>

On Mon, May 1, 2023 at 10:47 AM Roman Gushchin <roman.gushchin@linux.dev> wrote:
>
> On Mon, May 01, 2023 at 09:54:10AM -0700, Suren Baghdasaryan wrote:
> > Performance overhead:
> > To evaluate performance we implemented an in-kernel test executing
> > multiple get_free_page/free_page and kmalloc/kfree calls with allocation
> > sizes growing from 8 to 240 bytes with CPU frequency set to max and CPU
> > affinity set to a specific CPU to minimize the noise. Below is performance
> > comparison between the baseline kernel, profiling when enabled, profiling
> > when disabled (nomem_profiling=y) and (for comparison purposes) baseline
> > with CONFIG_MEMCG_KMEM enabled and allocations using __GFP_ACCOUNT:
> >
> >                       kmalloc                 pgalloc
> > Baseline (6.3-rc7)    9.200s                  31.050s
> > profiling disabled    9.800 (+6.52%)          32.600 (+4.99%)
> > profiling enabled     12.500 (+35.87%)        39.010 (+25.60%)
> > memcg_kmem enabled    41.400 (+350.00%)       70.600 (+127.38%)
>
> Hm, this makes me think we have a regression with memcg_kmem in one of
> the recent releases. When I measured it a couple of years ago, the overhead
> was definitely within 100%.
>
> Do you understand what makes the your profiling drastically faster than kmem?

I haven't profiled or looked into kmem overhead closely but I can do
that. I just wanted to see how the overhead compares with the existing
accounting mechanisms.

For kmalloc, the overhead is low because after we create the vector of
slab_ext objects (which is the same as what memcg_kmem does), memory
profiling just increments a lazy counter (which in many cases would be
a per-cpu counter). memcg_kmem operates on cgroup hierarchy with
additional overhead associated with that. I'm guessing that's the
reason for the big difference between these mechanisms but, I didn't
look into the details to understand memcg_kmem performance.

>
> Thanks!

  reply	other threads:[~2023-05-01 18:08 UTC|newest]

Thread overview: 320+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-01 16:54 [PATCH 00/40] Memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54 ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 01/40] lib/string_helpers: Drop space in string_get_size's output Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 18:13   ` Davidlohr Bueso
2023-05-01 18:13     ` Davidlohr Bueso
2023-05-01 19:35     ` Kent Overstreet
2023-05-01 19:35     ` Kent Overstreet
2023-05-01 19:57       ` Andy Shevchenko
2023-05-01 19:57         ` Andy Shevchenko
2023-05-01 21:16         ` Kent Overstreet
2023-05-01 21:16           ` Kent Overstreet
2023-05-01 21:33         ` Liam R. Howlett
2023-05-01 21:33           ` Liam R. Howlett
2023-05-02  0:11           ` Kent Overstreet
2023-05-02  0:11             ` Kent Overstreet
2023-05-02  0:53         ` Kent Overstreet
2023-05-02  0:53           ` Kent Overstreet
     [not found]       ` <ZFAUj+Q+hP7cWs4w-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2023-05-02  2:22         ` James Bottomley
2023-05-02  2:22       ` James Bottomley
2023-05-02  3:17         ` Kent Overstreet
2023-05-02  3:17           ` Kent Overstreet
2023-05-02  5:33           ` Andy Shevchenko
2023-05-02  5:33             ` Andy Shevchenko
2023-05-02  6:21             ` Kent Overstreet
2023-05-02  6:21               ` Kent Overstreet
2023-05-02 15:19               ` Andy Shevchenko
2023-05-02 15:19                 ` Andy Shevchenko
2023-05-03  2:07                 ` Kent Overstreet
2023-05-03  2:07                   ` Kent Overstreet
2023-05-03  6:30                   ` Andy Shevchenko
2023-05-03  6:30                     ` Andy Shevchenko
2023-05-03  7:12                     ` Kent Overstreet
2023-05-03  7:12                       ` Kent Overstreet
2023-05-03  9:12                       ` Andy Shevchenko
2023-05-03  9:12                         ` Andy Shevchenko
2023-05-03  9:16                         ` Kent Overstreet
2023-05-03  9:16                           ` Kent Overstreet
2023-05-02 11:42           ` James Bottomley
2023-05-02 11:42             ` James Bottomley
2023-05-02 22:50             ` Dave Chinner
2023-05-02 22:50               ` Dave Chinner
2023-05-03  9:28               ` Vlastimil Babka
2023-05-03  9:28                 ` Vlastimil Babka
2023-05-03  9:44                 ` Andy Shevchenko
2023-05-03  9:44                   ` Andy Shevchenko
2023-05-03 12:15               ` James Bottomley
2023-05-03 12:15                 ` James Bottomley
2023-05-02  7:55   ` Jani Nikula
2023-05-02  7:55     ` Jani Nikula
2023-05-01 16:54 ` [PATCH 02/40] scripts/kallysms: Always include __start and __stop symbols Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 03/40] fs: Convert alloc_inode_sb() to a macro Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-02 12:35   ` Petr Tesařík
2023-05-02 12:35     ` Petr Tesařík
2023-05-02 19:57     ` Kent Overstreet
2023-05-02 19:57       ` Kent Overstreet
2023-05-02 20:20       ` Petr Tesařík
2023-05-02 20:20         ` Petr Tesařík
2023-05-01 16:54 ` [PATCH 04/40] nodemask: Split out include/linux/nodemask_types.h Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 05/40] prandom: Remove unused include Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 06/40] lib/string.c: strsep_no_empty() Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-02 12:37   ` Petr Tesařík
2023-05-02 12:37     ` Petr Tesařík
2023-05-01 16:54 ` [PATCH 07/40] Lazy percpu counters Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 19:17   ` Randy Dunlap
2023-05-01 19:17     ` Randy Dunlap
2023-05-01 16:54 ` [PATCH 08/40] mm: introduce slabobj_ext to support slab object extensions Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 09/40] mm: introduce __GFP_NO_OBJ_EXT flag to selectively prevent slabobj_ext creation Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-02 12:50   ` Petr Tesařík
2023-05-02 12:50     ` Petr Tesařík
2023-05-02 18:33     ` Suren Baghdasaryan
2023-05-02 18:33       ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 10/40] mm/slab: introduce SLAB_NO_OBJ_EXT to avoid obj_ext creation Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 11/40] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 12/40] slab: objext: introduce objext_flags as extension to page_memcg_data_flags Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 13/40] lib: code tagging framework Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 14/40] lib: code tagging module support Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 15/40] lib: prevent module unloading if memory is not freed Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 16/40] lib: code tagging query helper functions Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 17/40] lib: add allocation tagging support for memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 18/40] lib: introduce support for page allocation tagging Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid name conflicts Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-02 15:50   ` Petr Tesařík
2023-05-02 15:50     ` Petr Tesařík
2023-05-02 18:38     ` Suren Baghdasaryan
2023-05-02 18:38       ` Suren Baghdasaryan
2023-05-02 20:09       ` Petr Tesařík
2023-05-02 20:09         ` Petr Tesařík
2023-05-02 20:18         ` Kent Overstreet
2023-05-02 20:18           ` Kent Overstreet
2023-05-02 20:24         ` Suren Baghdasaryan
2023-05-02 20:24           ` Suren Baghdasaryan
2023-05-02 20:39           ` Petr Tesařík
2023-05-02 20:39             ` Petr Tesařík
2023-05-02 20:41             ` Suren Baghdasaryan
2023-05-02 20:41               ` Suren Baghdasaryan
2023-05-03 16:25   ` Steven Rostedt
2023-05-03 16:25     ` Steven Rostedt
2023-05-03 18:03     ` Suren Baghdasaryan
2023-05-03 18:03       ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 20/40] mm: enable page allocation tagging Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 21/40] mm/page_ext: enable early_page_ext when CONFIG_MEM_ALLOC_PROFILING_DEBUG=y Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 22/40] mm: create new codetag references during page splitting Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 23/40] lib: add codetag reference into slabobj_ext Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 24/40] mm/slab: add allocation accounting into slab allocation and free paths Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 25/40] mm/slab: enable slab allocation tagging for kmalloc and friends Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 26/40] mm/slub: Mark slab_free_freelist_hook() __always_inline Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 27/40] mempool: Hook up to memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 28/40] timekeeping: Fix a circular include dependency Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-02 15:50   ` Thomas Gleixner
2023-05-02 15:50     ` Thomas Gleixner
2023-05-01 16:54 ` [PATCH 29/40] mm: percpu: Introduce pcpuobj_ext Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 30/40] mm: percpu: Add codetag reference into pcpuobj_ext Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 31/40] mm: percpu: enable per-cpu allocation tagging Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 32/40] arm64: Fix circular header dependency Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 33/40] move stack capture functionality into a separate function for reuse Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 34/40] lib: code tagging context capture support Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-03  7:35   ` Michal Hocko
2023-05-03  7:35     ` Michal Hocko
2023-05-03 15:18     ` Suren Baghdasaryan
2023-05-03 15:18       ` Suren Baghdasaryan
2023-05-03 15:26       ` Dave Hansen
2023-05-03 15:26         ` Dave Hansen
2023-05-03 19:45         ` Suren Baghdasaryan
2023-05-03 19:45           ` Suren Baghdasaryan
2023-05-04  8:04       ` Michal Hocko
2023-05-04  8:04         ` Michal Hocko
2023-05-04 14:31         ` Suren Baghdasaryan
2023-05-04 14:31           ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 35/40] lib: implement context capture support for tagged allocations Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-03  7:39   ` Michal Hocko
2023-05-03  7:39     ` Michal Hocko
2023-05-03 15:24     ` Suren Baghdasaryan
2023-05-03 15:24       ` Suren Baghdasaryan
2023-05-04  8:09       ` Michal Hocko
2023-05-04  8:09         ` Michal Hocko
2023-05-04 16:22         ` Suren Baghdasaryan
2023-05-04 16:22           ` Suren Baghdasaryan
2023-05-05  8:40           ` Michal Hocko
2023-05-05  8:40             ` Michal Hocko
2023-05-05 18:10             ` Suren Baghdasaryan
2023-05-05 18:10               ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 36/40] lib: add memory allocations report in show_mem() Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 37/40] codetag: debug: skip objext checking when it's for objext itself Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 38/40] codetag: debug: mark codetags for reserved pages as empty Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 39/40] codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 40/40] MAINTAINERS: Add entries for code tagging and memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54   ` Suren Baghdasaryan
2023-05-01 17:47 ` [PATCH 00/40] Memory " Roman Gushchin
2023-05-01 17:47   ` Roman Gushchin
2023-05-01 18:08   ` Suren Baghdasaryan [this message]
2023-05-01 18:08     ` Suren Baghdasaryan
2023-05-01 18:14     ` Roman Gushchin
2023-05-01 18:14       ` Roman Gushchin
2023-05-01 19:37       ` Kent Overstreet
2023-05-01 19:37         ` Kent Overstreet
2023-05-01 21:18         ` Roman Gushchin
2023-05-01 21:18           ` Roman Gushchin
2023-05-03  7:25 ` Michal Hocko
2023-05-03  7:25   ` Michal Hocko
2023-05-03  7:34   ` Kent Overstreet
2023-05-03  7:34     ` Kent Overstreet
2023-05-03  7:51     ` Michal Hocko
2023-05-03  7:51       ` Michal Hocko
2023-05-03  8:05       ` Kent Overstreet
2023-05-03  8:05         ` Kent Overstreet
2023-05-03 13:21         ` Steven Rostedt
2023-05-03 13:21           ` Steven Rostedt
2023-05-03 16:35         ` Tejun Heo
2023-05-03 16:35           ` Tejun Heo
2023-05-03 17:42           ` Suren Baghdasaryan
2023-05-03 17:42             ` Suren Baghdasaryan
2023-05-03 18:06             ` Tejun Heo
2023-05-03 18:06               ` Tejun Heo
2023-05-03 17:44           ` Kent Overstreet
2023-05-03 17:44             ` Kent Overstreet
2023-05-03 17:51           ` Kent Overstreet
2023-05-03 17:51             ` Kent Overstreet
2023-05-03 18:24             ` Tejun Heo
2023-05-03 18:24               ` Tejun Heo
2023-05-03 18:07           ` Johannes Weiner
2023-05-03 18:07             ` Johannes Weiner
2023-05-03 18:19             ` Tejun Heo
2023-05-03 18:19               ` Tejun Heo
2023-05-03 18:40               ` Tejun Heo
2023-05-03 18:40                 ` Tejun Heo
2023-05-03 18:56                 ` Kent Overstreet
2023-05-03 18:56                   ` Kent Overstreet
2023-05-03 18:58                   ` Tejun Heo
2023-05-03 18:58                     ` Tejun Heo
2023-05-03 19:09                     ` Tejun Heo
2023-05-03 19:09                       ` Tejun Heo
2023-05-03 19:41                       ` Suren Baghdasaryan
2023-05-03 19:41                         ` Suren Baghdasaryan
2023-05-03 19:48                         ` Tejun Heo
2023-05-03 19:48                           ` Tejun Heo
2023-05-03 20:00                           ` Tejun Heo
2023-05-03 20:00                             ` Tejun Heo
2023-05-03 20:14                             ` Suren Baghdasaryan
2023-05-03 20:14                               ` Suren Baghdasaryan
2023-05-04  2:25                               ` Tejun Heo
2023-05-04  2:25                                 ` Tejun Heo
2023-05-04  3:33                                 ` Kent Overstreet
2023-05-04  3:33                                   ` Kent Overstreet
2023-05-04  3:33                                 ` Suren Baghdasaryan
2023-05-04  3:33                                   ` Suren Baghdasaryan
2023-05-04  8:00                               ` Petr Tesařík
2023-05-04  8:00                                 ` Petr Tesařík
2023-05-03 20:08                           ` Suren Baghdasaryan
2023-05-03 20:08                             ` Suren Baghdasaryan
2023-05-03 20:11                             ` Johannes Weiner
2023-05-03 20:11                               ` Johannes Weiner
2023-05-04  2:16                             ` Tejun Heo
2023-05-04  2:16                               ` Tejun Heo
2023-05-03 20:04           ` Andrey Ryabinin
2023-05-03 20:04             ` Andrey Ryabinin
2023-05-03  9:50       ` Petr Tesařík
2023-05-03  9:50         ` Petr Tesařík
2023-05-03  9:54         ` Kent Overstreet
2023-05-03  9:54           ` Kent Overstreet
2023-05-03 10:24           ` Petr Tesařík
2023-05-03 10:24             ` Petr Tesařík
2023-05-03  9:57         ` Kent Overstreet
2023-05-03  9:57           ` Kent Overstreet
2023-05-03 10:26           ` Petr Tesařík
2023-05-03 10:26             ` Petr Tesařík
2023-05-03 15:30             ` Kent Overstreet
2023-05-03 15:30               ` Kent Overstreet
2023-05-03 12:33           ` James Bottomley
2023-05-03 12:33             ` James Bottomley
2023-05-03 14:31             ` Suren Baghdasaryan
2023-05-03 14:31               ` Suren Baghdasaryan
2023-05-03 15:28             ` Kent Overstreet
2023-05-03 15:28               ` Kent Overstreet
2023-05-03 15:37               ` Lorenzo Stoakes
2023-05-03 15:37                 ` Lorenzo Stoakes
2023-05-03 16:03                 ` Kent Overstreet
2023-05-03 16:03                   ` Kent Overstreet
2023-05-03 15:49               ` James Bottomley
2023-05-03 15:49                 ` James Bottomley
2023-05-03 15:09   ` Suren Baghdasaryan
2023-05-03 15:09     ` Suren Baghdasaryan
2023-05-03 16:28     ` Steven Rostedt
2023-05-03 16:28       ` Steven Rostedt
2023-05-03 17:40       ` Suren Baghdasaryan
2023-05-03 17:40         ` Suren Baghdasaryan
2023-05-03 18:03         ` Steven Rostedt
2023-05-03 18:03           ` Steven Rostedt
2023-05-03 18:07           ` Suren Baghdasaryan
2023-05-03 18:07             ` Suren Baghdasaryan
2023-05-03 18:12           ` Kent Overstreet
2023-05-03 18:12             ` Kent Overstreet
2023-05-04  9:07     ` Michal Hocko
2023-05-04  9:07       ` Michal Hocko
2023-05-04 15:08       ` Suren Baghdasaryan
2023-05-04 15:08         ` Suren Baghdasaryan
2023-05-07 10:27         ` Michal Hocko
2023-05-07 10:27           ` Michal Hocko
2023-05-07 17:01           ` Kent Overstreet
2023-05-07 17:01             ` Kent Overstreet
2023-05-07 17:20       ` Kent Overstreet
2023-05-07 17:20         ` Kent Overstreet
2023-05-07 20:55         ` Steven Rostedt
2023-05-07 20:55           ` Steven Rostedt
2023-05-07 21:53           ` Kent Overstreet
2023-05-07 21:53             ` Kent Overstreet
2023-05-07 22:09             ` Steven Rostedt
2023-05-07 22:09               ` Steven Rostedt
2023-05-07 22:17               ` Kent Overstreet
2023-05-07 22:17                 ` Kent Overstreet
2023-05-08 15:52         ` Petr Tesařík
2023-05-08 15:52           ` Petr Tesařík
2023-05-08 15:57           ` Kent Overstreet
2023-05-08 15:57             ` Kent Overstreet
2023-05-08 16:09             ` Petr Tesařík
2023-05-08 16:09               ` Petr Tesařík
2023-05-08 16:28               ` Kent Overstreet
2023-05-08 16:28                 ` Kent Overstreet
2023-05-08 18:59                 ` Petr Tesařík
2023-05-08 18:59                   ` Petr Tesařík
2023-05-08 20:48                   ` Kent Overstreet
2023-05-08 20:48                     ` Kent Overstreet

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