From: Masami Hiramatsu (Google) <mhiramat@kernel.org>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Florent Revest <revest@chromium.org>,
linux-trace-kernel@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
bpf <bpf@vger.kernel.org>, Sven Schnelle <svens@linux.ibm.com>,
Alexei Starovoitov <ast@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Alan Maguire <alan.maguire@oracle.com>,
Mark Rutland <mark.rutland@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>, Guo Ren <guoren@kernel.org>
Subject: Re: [PATCH v9 00/36] tracing: fprobe: function_graph: Multi-function graph and fprobe on fgraph
Date: Tue, 30 Apr 2024 22:32:17 +0900 [thread overview]
Message-ID: <20240430223217.fd375d57d130a4207be18e94@kernel.org> (raw)
In-Reply-To: <CAEf4BzZDqD4fyLpoq9r2M0HnES7aO7YW=ZNH-k8uPJWd_VbAJg@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 5166 bytes --]
On Mon, 29 Apr 2024 13:25:04 -0700
Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote:
> On Mon, Apr 29, 2024 at 6:51 AM Masami Hiramatsu <mhiramat@kernel.org> wrote:
> >
> > Hi Andrii,
> >
> > On Thu, 25 Apr 2024 13:31:53 -0700
> > Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote:
> >
> > > Hey Masami,
> > >
> > > I can't really review most of that code as I'm completely unfamiliar
> > > with all those inner workings of fprobe/ftrace/function_graph. I left
> > > a few comments where there were somewhat more obvious BPF-related
> > > pieces.
> > >
> > > But I also did run our BPF benchmarks on probes/for-next as a baseline
> > > and then with your series applied on top. Just to see if there are any
> > > regressions. I think it will be a useful data point for you.
> >
> > Thanks for testing!
> >
> > >
> > > You should be already familiar with the bench tool we have in BPF
> > > selftests (I used it on some other patches for your tree).
> >
> > What patches we need?
> >
>
> You mean for this `bench` tool? They are part of BPF selftests (under
> tools/testing/selftests/bpf), you can build them by running:
>
> $ make RELEASE=1 -j$(nproc) bench
>
> After that you'll get a self-container `bench` binary, which has all
> the self-contained benchmarks.
>
> You might also find a small script (benchs/run_bench_trigger.sh inside
> BPF selftests directory) helpful, it collects final summary of the
> benchmark run and optionally accepts a specific set of benchmarks. So
> you can use it like this:
>
> $ benchs/run_bench_trigger.sh kprobe kprobe-multi
> kprobe : 18.731 ± 0.639M/s
> kprobe-multi : 23.938 ± 0.612M/s
>
> By default it will run a wider set of benchmarks (no uprobes, but a
> bunch of extra fentry/fexit tests and stuff like this).
origin:
# benchs/run_bench_trigger.sh
kretprobe : 1.329 ± 0.007M/s
kretprobe-multi: 1.341 ± 0.004M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.288 ± 0.014M/s
kretprobe-multi: 1.365 ± 0.002M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.329 ± 0.002M/s
kretprobe-multi: 1.331 ± 0.011M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.311 ± 0.003M/s
kretprobe-multi: 1.318 ± 0.002M/s s
patched:
# benchs/run_bench_trigger.sh
kretprobe : 1.274 ± 0.003M/s
kretprobe-multi: 1.397 ± 0.002M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.307 ± 0.002M/s
kretprobe-multi: 1.406 ± 0.004M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.279 ± 0.004M/s
kretprobe-multi: 1.330 ± 0.014M/s
# benchs/run_bench_trigger.sh
kretprobe : 1.256 ± 0.010M/s
kretprobe-multi: 1.412 ± 0.003M/s
Hmm, in my case, it seems smaller differences (~3%?).
I attached perf report results for those, but I don't see large difference.
> > >
> > > BASELINE
> > > ========
> > > kprobe : 24.634 ± 0.205M/s
> > > kprobe-multi : 28.898 ± 0.531M/s
> > > kretprobe : 10.478 ± 0.015M/s
> > > kretprobe-multi: 11.012 ± 0.063M/s
> > >
> > > THIS PATCH SET ON TOP
> > > =====================
> > > kprobe : 25.144 ± 0.027M/s (+2%)
> > > kprobe-multi : 28.909 ± 0.074M/s
> > > kretprobe : 9.482 ± 0.008M/s (-9.5%)
> > > kretprobe-multi: 13.688 ± 0.027M/s (+24%)
> >
> > This looks good. Kretprobe should also use kretprobe-multi (fprobe)
> > eventually because it should be a single callback version of
> > kretprobe-multi.
I ran another benchmark (prctl loop, attached), the origin kernel result is here;
# sh ./benchmark.sh
count = 10000000, took 6.748133 sec
And the patched kernel result;
# sh ./benchmark.sh
count = 10000000, took 6.644095 sec
I confirmed that the parf result has no big difference.
Thank you,
> >
> > >
> > > These numbers are pretty stable and look to be more or less representative.
> > >
> > > As you can see, kprobes got a bit faster, kprobe-multi seems to be
> > > about the same, though.
> > >
> > > Then (I suppose they are "legacy") kretprobes got quite noticeably
> > > slower, almost by 10%. Not sure why, but looks real after re-running
> > > benchmarks a bunch of times and getting stable results.
> >
> > Hmm, kretprobe on x86 should use ftrace + rethook even with my series.
> > So nothing should be changed. Maybe cache access pattern has been
> > changed?
> > I'll check it with tracefs (to remove the effect from bpf related changes)
> >
> > >
> > > On the other hand, multi-kretprobes got significantly faster (+24%!).
> > > Again, I don't know if it is expected or not, but it's a nice
> > > improvement.
> >
> > Thanks!
> >
> > >
> > > If you have any idea why kretprobes would get so much slower, it would
> > > be nice to look into that and see if you can mitigate the regression
> > > somehow. Thanks!
> >
> > OK, let me check it.
> >
> > Thank you!
> >
> > >
> > >
> > > > 51 files changed, 2325 insertions(+), 882 deletions(-)
> > > > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe_repeat.tc
> > > >
> > > > --
> > > > Masami Hiramatsu (Google) <mhiramat@kernel.org>
> > > >
> >
> >
> > --
> > Masami Hiramatsu (Google) <mhiramat@kernel.org>
--
Masami Hiramatsu (Google) <mhiramat@kernel.org>
[-- Attachment #2: prctl_loop.c --]
[-- Type: text/x-csrc, Size: 555 bytes --]
#include <sys/prctl.h>
#include <unistd.h>
#include <sys/time.h>
#include <stdio.h>
int main(void)
{
struct timeval tv1, tv2;
unsigned long count = 0;
gettimeofday(&tv1, NULL);
do {
prctl(PR_GET_DUMPABLE, 0, 0, 0, 0);
count++;
} while (count < 10000000);
gettimeofday(&tv2, NULL);
tv2.tv_sec -= tv1.tv_sec;
if (tv2.tv_usec > tv1.tv_usec) {
tv2.tv_usec -= tv1.tv_usec;
} else {
tv2.tv_usec = tv2.tv_usec + 1000000 - tv1.tv_usec;
tv2.tv_sec--;
}
printf("count = %lu, took %ld.%06ld \n", count, tv2.tv_sec, tv2.tv_usec);
return 0;
}
[-- Attachment #3: perf-out-kretprobe-nopatch.txt --]
[-- Type: text/plain, Size: 65382 bytes --]
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 32K of event 'task-clock:ppp'
# Event count (approx.): 8035250000
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................................................. .....................................................
#
99.56% 0.00% bench libc.so.6 [.] start_thread
|
---start_thread
|
|--97.95%--syscall
| |
| |--58.91%--entry_SYSCALL_64_after_hwframe
| | do_syscall_64
| | |
| | |--19.61%--__x64_sys_getpgid
| | | |
| | | |--11.69%--0xffffffffa02050de
| | | | kprobe_ftrace_handler
| | | | |
| | | | |--6.26%--pre_handler_kretprobe
| | | | | |
| | | | | |--3.29%--objpool_pop
| | | | | |
| | | | | --1.97%--rethook_try_get
| | | | |
| | | | |--2.41%--rcu_is_watching
| | | | |
| | | | --0.93%--get_kprobe
| | | |
| | | --5.59%--do_getpgid
| | | |
| | | --4.85%--find_task_by_vpid
| | | |
| | | |--2.01%--idr_find
| | | |
| | | --1.42%--__radix_tree_lookup
| | |
| | |--14.68%--arch_rethook_trampoline
| | | |
| | | --12.96%--arch_rethook_trampoline_callback
| | | |
| | | --12.69%--rethook_trampoline_handler
| | | |
| | | |--10.89%--kretprobe_rethook_handler
| | | | |
| | | | --9.80%--kretprobe_dispatcher
| | | | |
| | | | --6.85%--kretprobe_perf_func
| | | | |
| | | | --6.57%--trace_call_bpf
| | | | |
| | | | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | | |
| | | | --0.67%--migrate_disable
| | | |
| | | --0.88%--objpool_push
| | |
| | --0.56%--syscall_exit_to_user_mode
| |
| --4.50%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--1.50%--syscall@plt
98.00% 34.25% bench libc.so.6 [.] syscall
|
|--63.76%--syscall
| |
| |--58.97%--entry_SYSCALL_64_after_hwframe
| | do_syscall_64
| | |
| | |--19.61%--__x64_sys_getpgid
| | | |
| | | |--11.69%--0xffffffffa02050de
| | | | kprobe_ftrace_handler
| | | | |
| | | | |--6.26%--pre_handler_kretprobe
| | | | | |
| | | | | |--3.29%--objpool_pop
| | | | | |
| | | | | --1.97%--rethook_try_get
| | | | |
| | | | |--2.41%--rcu_is_watching
| | | | |
| | | | --0.93%--get_kprobe
| | | |
| | | --5.59%--do_getpgid
| | | |
| | | --4.85%--find_task_by_vpid
| | | |
| | | |--2.01%--idr_find
| | | |
| | | --1.42%--__radix_tree_lookup
| | |
| | |--14.68%--arch_rethook_trampoline
| | | |
| | | --12.96%--arch_rethook_trampoline_callback
| | | |
| | | --12.69%--rethook_trampoline_handler
| | | |
| | | |--10.89%--kretprobe_rethook_handler
| | | | |
| | | | --9.80%--kretprobe_dispatcher
| | | | |
| | | | --6.85%--kretprobe_perf_func
| | | | |
| | | | --6.57%--trace_call_bpf
| | | | |
| | | | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | | |
| | | | --0.67%--migrate_disable
| | | |
| | | --0.88%--objpool_push
| | |
| | --0.56%--syscall_exit_to_user_mode
| |
| --4.50%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--34.25%--start_thread
syscall
59.08% 0.00% bench [kernel.kallsyms] [k] entry_SYSCALL_64_after_hwframe
|
---entry_SYSCALL_64_after_hwframe
do_syscall_64
|
|--19.61%--__x64_sys_getpgid
| |
| |--11.69%--0xffffffffa02050de
| | kprobe_ftrace_handler
| | |
| | |--6.26%--pre_handler_kretprobe
| | | |
| | | |--3.29%--objpool_pop
| | | |
| | | --1.97%--rethook_try_get
| | |
| | |--2.41%--rcu_is_watching
| | |
| | --0.93%--get_kprobe
| |
| --5.59%--do_getpgid
| |
| --4.85%--find_task_by_vpid
| |
| |--2.01%--idr_find
| |
| --1.42%--__radix_tree_lookup
|
|--14.68%--arch_rethook_trampoline
| |
| --12.96%--arch_rethook_trampoline_callback
| |
| --12.69%--rethook_trampoline_handler
| |
| |--10.89%--kretprobe_rethook_handler
| | |
| | --9.80%--kretprobe_dispatcher
| | |
| | --6.85%--kretprobe_perf_func
| | |
| | --6.57%--trace_call_bpf
| | |
| | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.67%--migrate_disable
| |
| --0.88%--objpool_push
|
--0.56%--syscall_exit_to_user_mode
59.08% 24.07% bench [kernel.kallsyms] [k] do_syscall_64
|
|--35.01%--do_syscall_64
| |
| |--19.61%--__x64_sys_getpgid
| | |
| | |--11.69%--0xffffffffa02050de
| | | kprobe_ftrace_handler
| | | |
| | | |--6.26%--pre_handler_kretprobe
| | | | |
| | | | |--3.29%--objpool_pop
| | | | |
| | | | --1.97%--rethook_try_get
| | | |
| | | |--2.41%--rcu_is_watching
| | | |
| | | --0.93%--get_kprobe
| | |
| | --5.59%--do_getpgid
| | |
| | --4.85%--find_task_by_vpid
| | |
| | |--2.01%--idr_find
| | |
| | --1.42%--__radix_tree_lookup
| |
| |--14.68%--arch_rethook_trampoline
| | |
| | --12.96%--arch_rethook_trampoline_callback
| | |
| | --12.69%--rethook_trampoline_handler
| | |
| | |--10.89%--kretprobe_rethook_handler
| | | |
| | | --9.80%--kretprobe_dispatcher
| | | |
| | | --6.85%--kretprobe_perf_func
| | | |
| | | --6.57%--trace_call_bpf
| | | |
| | | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | |
| | | --0.67%--migrate_disable
| | |
| | --0.88%--objpool_push
| |
| --0.56%--syscall_exit_to_user_mode
|
--24.06%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
19.66% 0.21% bench [kernel.kallsyms] [k] __x64_sys_getpgid
|
--19.44%--__x64_sys_getpgid
|
|--11.74%--0xffffffffa02050de
| kprobe_ftrace_handler
| |
| |--6.30%--pre_handler_kretprobe
| | |
| | |--3.29%--objpool_pop
| | |
| | --1.97%--rethook_try_get
| |
| |--2.41%--rcu_is_watching
| |
| --0.93%--get_kprobe
|
--5.59%--do_getpgid
|
--4.85%--find_task_by_vpid
|
|--2.01%--idr_find
|
--1.42%--__radix_tree_lookup
14.71% 1.75% bench [kernel.kallsyms] [k] arch_rethook_trampoline
|
|--12.96%--arch_rethook_trampoline
| |
| --12.96%--arch_rethook_trampoline_callback
| |
| --12.69%--rethook_trampoline_handler
| |
| |--10.89%--kretprobe_rethook_handler
| | |
| | --9.80%--kretprobe_dispatcher
| | |
| | --6.85%--kretprobe_perf_func
| | |
| | --6.57%--trace_call_bpf
| | |
| | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.67%--migrate_disable
| |
| --0.88%--objpool_push
|
--1.75%--start_thread
syscall
|
--1.71%--entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
12.96% 0.27% bench [kernel.kallsyms] [k] arch_rethook_trampoline_callback
|
--12.69%--arch_rethook_trampoline_callback
rethook_trampoline_handler
|
|--10.89%--kretprobe_rethook_handler
| |
| --9.80%--kretprobe_dispatcher
| |
| --6.85%--kretprobe_perf_func
| |
| --6.57%--trace_call_bpf
| |
| |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.67%--migrate_disable
|
--0.88%--objpool_push
12.69% 0.88% bench [kernel.kallsyms] [k] rethook_trampoline_handler
|
|--11.81%--rethook_trampoline_handler
| |
| |--10.89%--kretprobe_rethook_handler
| | |
| | --9.80%--kretprobe_dispatcher
| | |
| | --6.85%--kretprobe_perf_func
| | |
| | --6.57%--trace_call_bpf
| | |
| | |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.67%--migrate_disable
| |
| --0.88%--objpool_push
|
--0.88%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
11.74% 2.10% bench [kernel.kallsyms] [k] kprobe_ftrace_handler
|
|--9.64%--kprobe_ftrace_handler
| |
| |--6.30%--pre_handler_kretprobe
| | |
| | |--3.29%--objpool_pop
| | |
| | --1.97%--rethook_try_get
| |
| |--2.41%--rcu_is_watching
| |
| --0.93%--get_kprobe
|
--2.10%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
11.74% 0.00% bench [unknown] [k] 0xffffffffa02050de
|
---0xffffffffa02050de
kprobe_ftrace_handler
|
|--6.30%--pre_handler_kretprobe
| |
| |--3.29%--objpool_pop
| |
| --1.97%--rethook_try_get
|
|--2.41%--rcu_is_watching
|
--0.93%--get_kprobe
10.89% 1.09% bench [kernel.kallsyms] [k] kretprobe_rethook_handler
|
|--9.80%--kretprobe_rethook_handler
| kretprobe_dispatcher
| |
| --6.85%--kretprobe_perf_func
| |
| --6.57%--trace_call_bpf
| |
| |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.67%--migrate_disable
|
--1.09%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
9.80% 2.94% bench [kernel.kallsyms] [k] kretprobe_dispatcher
|
|--6.86%--kretprobe_dispatcher
| |
| --6.85%--kretprobe_perf_func
| |
| --6.57%--trace_call_bpf
| |
| |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.67%--migrate_disable
|
--2.94%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
6.94% 6.93% bench bpf_prog_21856463590f61f1_bench_trigger_kretprobe [k] bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--6.93%--start_thread
syscall
|
|--4.49%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--2.44%--entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
bpf_prog_21856463590f61f1_bench_trigger_kretprobe
6.85% 0.28% bench [kernel.kallsyms] [k] kretprobe_perf_func
|
--6.57%--kretprobe_perf_func
trace_call_bpf
|
|--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--0.67%--migrate_disable
6.57% 2.91% bench [kernel.kallsyms] [k] trace_call_bpf
|
|--3.67%--trace_call_bpf
| |
| |--2.44%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.67%--migrate_disable
|
--2.91%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
6.30% 0.81% bench [kernel.kallsyms] [k] pre_handler_kretprobe
|
|--5.49%--pre_handler_kretprobe
| |
| |--3.29%--objpool_pop
| |
| --1.97%--rethook_try_get
|
--0.81%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
pre_handler_kretprobe
5.59% 0.27% bench [kernel.kallsyms] [k] do_getpgid
|
--5.32%--do_getpgid
|
--4.85%--find_task_by_vpid
|
|--2.01%--idr_find
|
--1.42%--__radix_tree_lookup
4.85% 1.39% bench [kernel.kallsyms] [k] find_task_by_vpid
|
|--3.46%--find_task_by_vpid
| |
| |--2.01%--idr_find
| |
| --1.42%--__radix_tree_lookup
|
--1.39%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
3.29% 3.29% bench [kernel.kallsyms] [k] objpool_pop
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
pre_handler_kretprobe
objpool_pop
2.55% 2.55% bench [kernel.kallsyms] [k] rcu_is_watching
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
|
--2.41%--rcu_is_watching
2.01% 2.01% bench [kernel.kallsyms] [k] idr_find
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
idr_find
1.97% 1.83% bench [kernel.kallsyms] [k] rethook_try_get
|
--1.83%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
pre_handler_kretprobe
rethook_try_get
1.50% 1.50% bench bench [.] syscall@plt
|
---start_thread
syscall@plt
1.42% 1.42% bench [kernel.kallsyms] [k] __radix_tree_lookup
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
__radix_tree_lookup
0.93% 0.93% bench [kernel.kallsyms] [k] get_kprobe
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
0xffffffffa02050de
kprobe_ftrace_handler
get_kprobe
0.88% 0.88% bench [kernel.kallsyms] [k] objpool_push
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
objpool_push
0.67% 0.67% bench [kernel.kallsyms] [k] migrate_disable
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
migrate_disable
0.56% 0.56% bench [kernel.kallsyms] [k] syscall_exit_to_user_mode
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
syscall_exit_to_user_mode
0.45% 0.45% bench [kernel.kallsyms] [k] __rcu_read_lock
0.44% 0.44% bench [unknown] [k] 0xffffffffa0205005
0.39% 0.39% bench [kernel.kallsyms] [k] migrate_enable
0.36% 0.36% bench [unknown] [k] 0xffffffffa020515d
0.30% 0.00% bench libc.so.6 [.] __libc_start_call_main
0.30% 0.00% bench bench [.] main
0.30% 0.00% bench bench [.] setup_benchmark
0.30% 0.00% bench bench [.] trigger_kretprobe_setup
0.27% 0.27% bench [unknown] [k] 0xffffffffa0205011
0.27% 0.00% bench bench [.] trigger_bench__open_and_load
0.27% 0.00% bench bench [.] bpf_object__load_skeleton
0.27% 0.00% bench bench [.] bpf_object__load
0.27% 0.00% bench bench [.] bpf_object_load
0.23% 0.15% bench [kernel.kallsyms] [k] rethook_hook
0.22% 0.00% bench bench [.] bpf_object__load_vmlinux_btf
0.22% 0.00% bench bench [.] libbpf_find_kernel_btf
0.22% 0.00% bench bench [.] btf__parse
0.22% 0.00% bench bench [.] btf_parse
0.22% 0.00% bench bench [.] btf_parse_raw
0.21% 0.21% bench [kernel.kallsyms] [k] __x86_indirect_thunk_array
0.20% 0.20% bench [unknown] [k] 0xffffffffa0205000
0.18% 0.18% bench [kernel.kallsyms] [k] __rcu_read_unlock
0.16% 0.16% bench [unknown] [k] 0xffffffffa020506c
0.16% 0.01% bench [kernel.kallsyms] [k] do_user_addr_fault
0.16% 0.00% bench [kernel.kallsyms] [k] asm_exc_page_fault
0.16% 0.00% bench [kernel.kallsyms] [k] exc_page_fault
0.14% 0.00% bench [kernel.kallsyms] [k] handle_mm_fault
0.14% 0.00% bench [kernel.kallsyms] [k] __handle_mm_fault
0.14% 0.00% bench [kernel.kallsyms] [k] do_anonymous_page
0.13% 0.00% bench [kernel.kallsyms] [k] vma_alloc_folio
0.13% 0.02% bench libc.so.6 [.] __memmove_sse2_unaligned_erms
0.12% 0.00% bench [kernel.kallsyms] [k] alloc_pages_mpol
0.12% 0.00% bench [kernel.kallsyms] [k] __alloc_pages
0.12% 0.00% bench [kernel.kallsyms] [k] get_page_from_freelist
0.12% 0.12% bench [kernel.kallsyms] [k] clear_page_orig
0.11% 0.11% bench bench [.] trigger_producer
0.10% 0.00% bench bench [.] btf_new
0.08% 0.08% bench [kernel.kallsyms] [k] arch_rethook_prepare
0.07% 0.00% bench [unknown] [k] 0000000000000000
0.07% 0.00% bench bench [.] btf_sanity_check
0.07% 0.07% bench [unknown] [k] 0xffffffffa020508e
0.07% 0.01% bench libc.so.6 [.] read
0.06% 0.02% bench bench [.] btf_validate_type
0.05% 0.05% bench [unknown] [k] 0xffffffffa02050e6
0.05% 0.05% bench [unknown] [k] 0xffffffffa020507f
0.05% 0.05% bench [unknown] [k] 0xffffffffa0205150
0.05% 0.00% bench [kernel.kallsyms] [k] ksys_read
0.05% 0.00% bench [kernel.kallsyms] [k] vfs_read
0.05% 0.00% bench [kernel.kallsyms] [k] kernfs_file_read_iter
0.04% 0.04% bench [unknown] [k] 0xffffffffa0205016
0.04% 0.04% bench [unknown] [k] 0xffffffffa020513c
0.04% 0.00% bench [kernel.kallsyms] [k] _copy_to_iter
0.04% 0.01% bench [kernel.kallsyms] [k] rep_movs_alternative
0.04% 0.00% bench [kernel.kallsyms] [k] ftrace_modify_all_code
0.04% 0.04% bench [kernel.kallsyms] [k] arch_rethook_fixup_return
0.04% 0.04% bench [unknown] [k] 0xffffffffa02050ad
0.04% 0.03% bench [kernel.kallsyms] [k] radix_tree_lookup
0.04% 0.04% bench [unknown] [k] 0xffffffffa0205116
0.04% 0.00% bench [kernel.kallsyms] [k] 0xffffffff8108da38
0.04% 0.00% bench [kernel.kallsyms] [k] do_group_exit
0.04% 0.00% bench [kernel.kallsyms] [k] do_exit
0.03% 0.03% bench [kernel.kallsyms] [k] __do_softirq
0.03% 0.03% bench [unknown] [k] 0xffffffffa0205020
0.03% 0.03% bench [unknown] [k] 0xffffffffa02050cc
0.03% 0.00% bench [kernel.kallsyms] [k] asm_sysvec_apic_timer_interrupt
0.03% 0.00% bench [kernel.kallsyms] [k] sysvec_apic_timer_interrupt
0.03% 0.00% bench [kernel.kallsyms] [k] irq_exit_rcu
0.03% 0.00% bench [kernel.kallsyms] [k] task_work_run
0.03% 0.00% bench [kernel.kallsyms] [k] __fput
0.03% 0.03% bench [unknown] [k] 0xffffffffa020512b
0.03% 0.00% bench bench [.] feat_supported
0.03% 0.00% bench bench [.] sys_bpf_fd
0.03% 0.00% bench [kernel.kallsyms] [k] __x64_sys_bpf
0.03% 0.00% bench [kernel.kallsyms] [k] __sys_bpf
0.03% 0.00% bench [kernel.kallsyms] [k] bpf_prog_load
0.03% 0.00% bench bench [.] btf_parse_type_sec
0.03% 0.03% bench [unknown] [k] 0xffffffffa020509e
0.03% 0.03% bench [unknown] [k] 0xffffffffa0205102
0.02% 0.02% bench [unknown] [k] 0xffffffffa020502a
0.02% 0.02% bench [unknown] [k] 0xffffffffa02050bc
0.02% 0.02% bench [kernel.kallsyms] [k] smp_call_function_many_cond
0.02% 0.00% bench bench [.] bpf_program__attach
0.02% 0.00% bench bench [.] attach_kprobe
0.02% 0.00% bench bench [.] bpf_program__attach_kprobe_opts
0.02% 0.00% bench [kernel.kallsyms] [k] __do_sys_perf_event_open
0.02% 0.00% bench [kernel.kallsyms] [k] perf_event_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] perf_release
0.02% 0.01% bench bench [.] btf__type_by_id
0.02% 0.00% bench [kernel.kallsyms] [k] perf_event_release_kernel
0.02% 0.00% bench [kernel.kallsyms] [k] perf_init_event
0.02% 0.00% bench [kernel.kallsyms] [k] _free_event
0.02% 0.00% bench [kernel.kallsyms] [k] perf_try_init_event
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_destroy
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_event_init
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_init
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_unreg.isra.0
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_prog_select_runtime
0.02% 0.00% bench [kernel.kallsyms] [k] disable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] __disable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_int_jit_compile
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_jit_binary_pack_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] disable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] __disable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_prog_pack_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] __disarm_kprobe_ftrace
0.02% 0.00% bench [kernel.kallsyms] [k] alloc_new_pack
0.02% 0.00% bench [kernel.kallsyms] [k] unregister_ftrace_function
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_shutdown.part.0
0.02% 0.01% bench [kernel.kallsyms] [k] ftrace_replace_code
0.02% 0.00% bench bench [.] bpf_object__probe_loading
0.02% 0.00% bench bench [.] bump_rlimit_memlock
0.02% 0.01% bench bench [.] btf_validate_id
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_init
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_reg
0.02% 0.00% bench [kernel.kallsyms] [k] enable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] enable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] __arm_kprobe_ftrace
0.02% 0.00% bench [kernel.kallsyms] [k] register_ftrace_function
0.02% 0.00% bench [kernel.kallsyms] [k] register_ftrace_function_nolock
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_startup
0.02% 0.00% bench [kernel.kallsyms] [k] on_each_cpu_cond_mask
0.02% 0.02% bench [kernel.kallsyms] [k] memset_orig
0.02% 0.00% bench bench [.] probe_memcg_account
0.02% 0.02% bench bench [.] btf_type_by_id
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_update_ftrace_func
0.02% 0.00% bench [kernel.kallsyms] [k] text_poke_bp
0.02% 0.00% bench [kernel.kallsyms] [k] text_poke_bp_batch
0.02% 0.02% bench [unknown] [k] 0xffffffffa0205004
0.02% 0.02% bench [unknown] [k] 0xffffffffa0205038
0.02% 0.02% bench [unknown] [k] 0xffffffffa0205050
0.02% 0.00% bench bench [.] bpf_object__load_progs
0.02% 0.00% bench bench [.] bpf_object_load_prog
0.02% 0.00% bench bench [.] btf_add_type_idx_entry
0.01% 0.01% bench bench [.] btf_kind
0.01% 0.01% bench [unknown] [k] 0xffffffffa020503b
0.01% 0.01% bench [unknown] [k] 0xffffffffa0205058
0.01% 0.00% bench bench [.] sys_bpf_prog_load
0.01% 0.00% bench bench [.] btf_add_type_offs_mem
0.01% 0.00% bench bench [.] btf_validate_str
0.01% 0.01% bench bench [.] btf_type_size
0.01% 0.01% bench [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
0.01% 0.00% bench bench [.] libbpf_prepare_prog_load
0.01% 0.00% bench bench [.] libbpf_find_attach_btf_id
0.01% 0.00% bench bench [.] find_kernel_btf_id
0.01% 0.00% bench bench [.] find_attach_btf_id
0.01% 0.00% bench bench [.] find_btf_by_prefix_kind
0.01% 0.00% bench bench [.] btf__find_by_name_kind
0.01% 0.00% bench bench [.] btf_find_by_name_kind
0.01% 0.01% bench [unknown] [k] 0xffffffffa020502f
0.01% 0.00% bench bench [.] kernel_supports
0.01% 0.00% bench ld-linux-x86-64.so.2 [.] _dl_map_object
0.01% 0.00% bench ld-linux-x86-64.so.2 [.] __GI___open64_nocancel
0.01% 0.00% bench libc.so.6 [.] __memset_sse2_unaligned_erms
0.01% 0.00% bench [kernel.kallsyms] [k] __x64_sys_openat
0.01% 0.00% bench [kernel.kallsyms] [k] do_sys_openat2
0.01% 0.00% bench [kernel.kallsyms] [k] do_filp_open
0.01% 0.00% bench [kernel.kallsyms] [k] path_openat
0.01% 0.00% bench [kernel.kallsyms] [k] p9_client_rpc
0.01% 0.01% bench [kernel.kallsyms] [k] ftrace_rec_iter_record
0.01% 0.01% bench [kernel.kallsyms] [k] kmem_cache_alloc
0.01% 0.01% bench [unknown] [k] 0xffffffffa0205025
0.01% 0.01% bench [unknown] [k] 0xffffffffa0205040
0.01% 0.00% bench bench [.] bpf_object__sanitize_maps
0.01% 0.00% bench [kernel.kallsyms] [k] _raw_spin_lock
0.01% 0.00% bench bench [.] probe_kern_array_mmap
0.01% 0.00% bench bench [.] bpf_map_create
0.01% 0.00% bench bench [.] probe_kern_prog_name
0.01% 0.01% bench bench [.] btf__str_by_offset
0.01% 0.01% bench bench [.] btf_vlen
0.01% 0.00% bench bench [.] bpf_prog_load
0.01% 0.00% bench [kernel.kallsyms] [k] lock_mm_and_find_vma
0.01% 0.00% bench [kernel.kallsyms] [k] zap_pte_range
0.01% 0.00% bench [kernel.kallsyms] [k] set_memory_rox
0.01% 0.00% bench [kernel.kallsyms] [k] change_page_attr_set_clr
0.01% 0.00% bench [kernel.kallsyms] [k] __change_page_attr_set_clr
0.01% 0.00% bench [kernel.kallsyms] [k] do_open
0.01% 0.00% bench [kernel.kallsyms] [k] do_dentry_open
0.01% 0.00% bench [kernel.kallsyms] [k] v9fs_file_open
0.01% 0.00% bench [kernel.kallsyms] [k] __change_page_attr
0.01% 0.00% bench [kernel.kallsyms] [k] __pte_offset_map_lock
0.01% 0.00% bench [kernel.kallsyms] [k] __vmalloc_node_range
0.01% 0.00% bench [kernel.kallsyms] [k] unmap_vmas
0.01% 0.00% bench [kernel.kallsyms] [k] __vmalloc_area_node
0.01% 0.00% bench [kernel.kallsyms] [k] unmap_page_range
0.01% 0.00% bench [kernel.kallsyms] [k] p9_virtio_request
0.00% 0.00% bench [kernel.kallsyms] [k] lookup_address_in_pgd
0.00% 0.00% bench [kernel.kallsyms] [k] vmap_pages_pte_range
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_rec_iter_next
0.00% 0.00% bench [kernel.kallsyms] [k] __alloc_pages_bulk
0.00% 0.00% bench [kernel.kallsyms] [k] default_send_IPI_allbutself
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_lookup_ip
0.00% 0.00% bench [kernel.kallsyms] [k] insn_get_prefixes.part.0
0.00% 0.00% bench [kernel.kallsyms] [k] rmqueue
0.00% 0.00% bench [kernel.kallsyms] [k] in_lock_functions
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_check_record
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_test_record
0.00% 0.00% bench [kernel.kallsyms] [k] mas_walk
0.00% 0.00% bench [kernel.kallsyms] [k] __mod_memcg_lruvec_state
0.00% 0.00% bench [kernel.kallsyms] [k] kmem_cache_alloc_lru
0.00% 0.00% bench [kernel.kallsyms] [k] perf_output_begin
0.00% 0.00% bench [kernel.kallsyms] [k] iput
0.00% 0.00% bench [kernel.kallsyms] [k] mas_alloc_nodes
0.00% 0.00% bench [kernel.kallsyms] [k] memcpy_orig
0.00% 0.00% bench [kernel.kallsyms] [k] tmigr_handle_remote
0.00% 0.00% bench bench [.] bpf_object__relocate
0.00% 0.00% bench bench [.] btf_strs_data
0.00% 0.00% bench bench [.] bpf_program_fixup_func_info
0.00% 0.00% bench bench [.] libbpf_add_mem
0.00% 0.00% bench bench [.] probe_kern_arg_ctx_tag
0.00% 0.00% bench [kernel.kallsyms] [k] zap_present_ptes
0.00% 0.00% bench [unknown] [k] 0xffffffffa0205089
0.00% 0.00% bench libc.so.6 [.] _int_realloc
0.00% 0.00% bench [unknown] [k] 0x31392e3033202820
0.00% 0.00% bench libc.so.6 [.] __GI___libc_write
0.00% 0.00% bench [kernel.kallsyms] [k] create_local_trace_kprobe
0.00% 0.00% bench libc.so.6 [.] __munmap
0.00% 0.00% bench [kernel.kallsyms] [k] register_kretprobe
0.00% 0.00% bench libc.so.6 [.] __brk
0.00% 0.00% bench libc.so.6 [.] clone3
0.00% 0.00% bench libc.so.6 [.] __strcmp_sse2
0.00% 0.00% bench [kernel.kallsyms] [k] ksys_write
0.00% 0.00% bench [kernel.kallsyms] [k] register_kprobe
0.00% 0.00% bench [kernel.kallsyms] [k] __x64_sys_munmap
0.00% 0.00% bench [kernel.kallsyms] [k] bpf_prog_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] bpf_prog_release
0.00% 0.00% bench [kernel.kallsyms] [k] check_kprobe_address_safe
0.00% 0.00% bench [kernel.kallsyms] [k] exit_mm
0.00% 0.00% bench [kernel.kallsyms] [k] vfs_write
0.00% 0.00% bench [kernel.kallsyms] [k] __do_sys_brk
0.00% 0.00% bench [kernel.kallsyms] [k] __do_sys_clone3
0.00% 0.00% bench [kernel.kallsyms] [k] __vm_munmap
0.00% 0.00% bench [kernel.kallsyms] [k] bpf_prog_alloc_no_stats
0.00% 0.00% bench [kernel.kallsyms] [k] bpf_prog_put_deferred
0.00% 0.00% bench [kernel.kallsyms] [k] cpa_process_alias
0.00% 0.00% bench [kernel.kallsyms] [k] file_tty_write.constprop.0
0.00% 0.00% bench [kernel.kallsyms] [k] jump_label_text_reserved
0.00% 0.00% bench [kernel.kallsyms] [k] mmput
0.00% 0.00% bench [kernel.kallsyms] [k] open_last_lookups
0.00% 0.00% bench [kernel.kallsyms] [k] __vmalloc_node
0.00% 0.00% bench [kernel.kallsyms] [k] arch_jump_entry_size
0.00% 0.00% bench [kernel.kallsyms] [k] do_brk_flags
0.00% 0.00% bench [kernel.kallsyms] [k] do_vmi_align_munmap.constprop.0
0.00% 0.00% bench [kernel.kallsyms] [k] exit_mmap
0.00% 0.00% bench [kernel.kallsyms] [k] idr_alloc_cyclic
0.00% 0.00% bench [kernel.kallsyms] [k] iterate_tty_write
0.00% 0.00% bench [kernel.kallsyms] [k] kernel_clone
0.00% 0.00% bench [kernel.kallsyms] [k] lookup_open.isra.0
0.00% 0.00% bench [kernel.kallsyms] [k] module_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] perf_event_bpf_event
0.00% 0.00% bench [kernel.kallsyms] [k] v9fs_dir_release
0.00% 0.00% bench bench [.] collect_measurements
0.00% 0.00% bench libc.so.6 [.] __strnlen_ifunc
0.00% 0.00% bench [kernel.kallsyms] [k] copy_process
0.00% 0.00% bench [kernel.kallsyms] [k] d_alloc_parallel
0.00% 0.00% bench [kernel.kallsyms] [k] idr_alloc_u32
0.00% 0.00% bench [kernel.kallsyms] [k] insn_decode
0.00% 0.00% bench [kernel.kallsyms] [k] mas_store_gfp
0.00% 0.00% bench [kernel.kallsyms] [k] n_tty_write
0.00% 0.00% bench [kernel.kallsyms] [k] p9_client_clunk
0.00% 0.00% bench [kernel.kallsyms] [k] p9_client_open
0.00% 0.00% bench [kernel.kallsyms] [k] p9_client_walk
0.00% 0.00% bench [kernel.kallsyms] [k] perf_iterate_sb
0.00% 0.00% bench [kernel.kallsyms] [k] unmap_region
0.00% 0.00% bench [unknown] [.] 0x0000000000000040
0.00% 0.00% bench libc.so.6 [.] __mpn_extract_double
0.00% 0.00% bench [kernel.kallsyms] [k] __split_large_page
0.00% 0.00% bench [kernel.kallsyms] [k] d_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] dput
0.00% 0.00% bench [kernel.kallsyms] [k] dup_task_struct
0.00% 0.00% bench [kernel.kallsyms] [k] find_vma
0.00% 0.00% bench [kernel.kallsyms] [k] idr_get_free
0.00% 0.00% bench [kernel.kallsyms] [k] insn_get_displacement
0.00% 0.00% bench [kernel.kallsyms] [k] mas_wr_bnode
0.00% 0.00% bench [kernel.kallsyms] [k] perf_iterate_ctx
0.00% 0.00% bench [kernel.kallsyms] [k] process_output_block
0.00% 0.00% bench [kernel.kallsyms] [k] wp_page_copy
0.00% 0.00% bench bench [.] bpf_object__open_skeleton
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] _dl_sysdep_start
0.00% 0.00% bench libc.so.6 [.] __restore_rt
0.00% 0.00% bench [unknown] [.] 0x000055e503ff7c50
0.00% 0.00% bench libc.so.6 [.] _IO_file_xsgetn
0.00% 0.00% bench [kernel.kallsyms] [k] __anon_vma_prepare
0.00% 0.00% bench [kernel.kallsyms] [k] __d_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] __dentry_kill
0.00% 0.00% bench [kernel.kallsyms] [k] __ftrace_hash_rec_update.part.0
0.00% 0.00% bench [kernel.kallsyms] [k] __lruvec_stat_mod_folio
0.00% 0.00% bench [kernel.kallsyms] [k] alloc_pages_bulk_array_mempolicy
0.00% 0.00% bench [kernel.kallsyms] [k] alloc_thread_stack_node
0.00% 0.00% bench [kernel.kallsyms] [k] btf_vmlinux_read
0.00% 0.00% bench [kernel.kallsyms] [k] insn_get_modrm
0.00% 0.00% bench [kernel.kallsyms] [k] lock_vma_under_rcu
0.00% 0.00% bench [kernel.kallsyms] [k] mas_split.isra.0
0.00% 0.00% bench [kernel.kallsyms] [k] mt_find
0.00% 0.00% bench [kernel.kallsyms] [k] perf_event_bpf_output
0.00% 0.00% bench [kernel.kallsyms] [k] preempt_count_add
0.00% 0.00% bench [kernel.kallsyms] [k] prepare_to_wait_event
0.00% 0.00% bench [kernel.kallsyms] [k] radix_tree_node_alloc.constprop.0
0.00% 0.00% bench [kernel.kallsyms] [k] smp_call_function
0.00% 0.00% bench [kernel.kallsyms] [k] uart_write
0.00% 0.00% bench [kernel.kallsyms] [k] vmap_small_pages_range_noflush
0.00% 0.00% bench bench [.] populate_skeleton_progs
0.00% 0.00% bench bench [.] sigalarm_handler
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] dl_main
0.00% 0.00% bench libc.so.6 [.] __vfprintf_internal
#
# (Tip: Show individual samples with: perf script)
#
[-- Attachment #4: perf-out-kretprobe-patched.txt --]
[-- Type: text/plain, Size: 66042 bytes --]
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 32K of event 'task-clock:ppp'
# Event count (approx.): 8042250000
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................................................. .....................................................
#
99.52% 0.00% bench libc.so.6 [.] start_thread
|
---start_thread
|
|--97.57%--syscall
| |
| |--59.31%--entry_SYSCALL_64_after_hwframe
| | do_syscall_64
| | |
| | |--19.37%--__x64_sys_getpgid
| | | |
| | | |--12.79%--ftrace_trampoline
| | | | |
| | | | --10.73%--kprobe_ftrace_handler
| | | | |
| | | | |--6.03%--pre_handler_kretprobe
| | | | | |
| | | | | |--3.10%--objpool_pop
| | | | | |
| | | | | --1.86%--rethook_try_get
| | | | |
| | | | |--2.00%--rcu_is_watching
| | | | |
| | | | --0.50%--get_kprobe
| | | |
| | | --6.29%--do_getpgid
| | | |
| | | --5.54%--find_task_by_vpid
| | | |
| | | |--2.01%--idr_find
| | | |
| | | --1.52%--__radix_tree_lookup
| | |
| | |--13.87%--arch_rethook_trampoline
| | | |
| | | --12.14%--arch_rethook_trampoline_callback
| | | |
| | | --11.91%--rethook_trampoline_handler
| | | |
| | | |--10.24%--kretprobe_rethook_handler
| | | | |
| | | | --9.28%--kretprobe_dispatcher
| | | | |
| | | | --6.35%--kretprobe_perf_func
| | | | |
| | | | --5.99%--trace_call_bpf
| | | | |
| | | | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | | |
| | | | --0.95%--migrate_disable
| | | |
| | | --0.95%--objpool_push
| | |
| | --0.53%--syscall_exit_to_user_mode
| |
| --4.37%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--1.75%--syscall@plt
97.63% 33.61% bench libc.so.6 [.] syscall
|
|--64.02%--syscall
| |
| |--59.37%--entry_SYSCALL_64_after_hwframe
| | do_syscall_64
| | |
| | |--19.37%--__x64_sys_getpgid
| | | |
| | | |--12.79%--ftrace_trampoline
| | | | |
| | | | --10.73%--kprobe_ftrace_handler
| | | | |
| | | | |--6.03%--pre_handler_kretprobe
| | | | | |
| | | | | |--3.10%--objpool_pop
| | | | | |
| | | | | --1.86%--rethook_try_get
| | | | |
| | | | |--2.00%--rcu_is_watching
| | | | |
| | | | --0.50%--get_kprobe
| | | |
| | | --6.29%--do_getpgid
| | | |
| | | --5.54%--find_task_by_vpid
| | | |
| | | |--2.01%--idr_find
| | | |
| | | --1.52%--__radix_tree_lookup
| | |
| | |--13.87%--arch_rethook_trampoline
| | | |
| | | --12.14%--arch_rethook_trampoline_callback
| | | |
| | | --11.91%--rethook_trampoline_handler
| | | |
| | | |--10.24%--kretprobe_rethook_handler
| | | | |
| | | | --9.28%--kretprobe_dispatcher
| | | | |
| | | | --6.35%--kretprobe_perf_func
| | | | |
| | | | --5.99%--trace_call_bpf
| | | | |
| | | | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | | |
| | | | --0.95%--migrate_disable
| | | |
| | | --0.95%--objpool_push
| | |
| | --0.53%--syscall_exit_to_user_mode
| |
| --4.37%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--33.61%--start_thread
syscall
59.54% 0.00% bench [kernel.kallsyms] [k] entry_SYSCALL_64_after_hwframe
|
---entry_SYSCALL_64_after_hwframe
do_syscall_64
|
|--19.37%--__x64_sys_getpgid
| |
| |--12.79%--ftrace_trampoline
| | |
| | --10.73%--kprobe_ftrace_handler
| | |
| | |--6.03%--pre_handler_kretprobe
| | | |
| | | |--3.10%--objpool_pop
| | | |
| | | --1.86%--rethook_try_get
| | |
| | |--2.00%--rcu_is_watching
| | |
| | --0.50%--get_kprobe
| |
| --6.29%--do_getpgid
| |
| --5.54%--find_task_by_vpid
| |
| |--2.01%--idr_find
| |
| --1.52%--__radix_tree_lookup
|
|--13.87%--arch_rethook_trampoline
| |
| --12.14%--arch_rethook_trampoline_callback
| |
| --11.91%--rethook_trampoline_handler
| |
| |--10.24%--kretprobe_rethook_handler
| | |
| | --9.28%--kretprobe_dispatcher
| | |
| | --6.35%--kretprobe_perf_func
| | |
| | --5.99%--trace_call_bpf
| | |
| | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.95%--migrate_disable
| |
| --0.95%--objpool_push
|
--0.53%--syscall_exit_to_user_mode
59.54% 25.54% bench [kernel.kallsyms] [k] do_syscall_64
|
|--34.00%--do_syscall_64
| |
| |--19.37%--__x64_sys_getpgid
| | |
| | |--12.79%--ftrace_trampoline
| | | |
| | | --10.73%--kprobe_ftrace_handler
| | | |
| | | |--6.03%--pre_handler_kretprobe
| | | | |
| | | | |--3.10%--objpool_pop
| | | | |
| | | | --1.86%--rethook_try_get
| | | |
| | | |--2.00%--rcu_is_watching
| | | |
| | | --0.50%--get_kprobe
| | |
| | --6.29%--do_getpgid
| | |
| | --5.54%--find_task_by_vpid
| | |
| | |--2.01%--idr_find
| | |
| | --1.52%--__radix_tree_lookup
| |
| |--13.87%--arch_rethook_trampoline
| | |
| | --12.14%--arch_rethook_trampoline_callback
| | |
| | --11.91%--rethook_trampoline_handler
| | |
| | |--10.24%--kretprobe_rethook_handler
| | | |
| | | --9.28%--kretprobe_dispatcher
| | | |
| | | --6.35%--kretprobe_perf_func
| | | |
| | | --5.99%--trace_call_bpf
| | | |
| | | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | | |
| | | --0.95%--migrate_disable
| | |
| | --0.95%--objpool_push
| |
| --0.53%--syscall_exit_to_user_mode
|
--25.54%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
19.40% 0.29% bench [kernel.kallsyms] [k] __x64_sys_getpgid
|
--19.11%--__x64_sys_getpgid
|
|--12.82%--ftrace_trampoline
| |
| --10.76%--kprobe_ftrace_handler
| |
| |--6.06%--pre_handler_kretprobe
| | |
| | |--3.10%--objpool_pop
| | |
| | --1.86%--rethook_try_get
| |
| |--2.00%--rcu_is_watching
| |
| --0.50%--get_kprobe
|
--6.29%--do_getpgid
|
--5.54%--find_task_by_vpid
|
|--2.01%--idr_find
|
--1.52%--__radix_tree_lookup
13.91% 1.77% bench [kernel.kallsyms] [k] arch_rethook_trampoline
|
|--12.14%--arch_rethook_trampoline
| arch_rethook_trampoline_callback
| |
| --11.91%--rethook_trampoline_handler
| |
| |--10.24%--kretprobe_rethook_handler
| | |
| | --9.28%--kretprobe_dispatcher
| | |
| | --6.35%--kretprobe_perf_func
| | |
| | --5.99%--trace_call_bpf
| | |
| | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.95%--migrate_disable
| |
| --0.95%--objpool_push
|
--1.77%--start_thread
syscall
|
--1.73%--entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
12.82% 2.06% bench ftrace_trampoline [k] ftrace_trampoline
|
|--10.76%--ftrace_trampoline
| kprobe_ftrace_handler
| |
| |--6.06%--pre_handler_kretprobe
| | |
| | |--3.10%--objpool_pop
| | |
| | --1.86%--rethook_try_get
| |
| |--2.00%--rcu_is_watching
| |
| --0.50%--get_kprobe
|
--2.06%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
12.14% 0.23% bench [kernel.kallsyms] [k] arch_rethook_trampoline_callback
|
--11.91%--arch_rethook_trampoline_callback
rethook_trampoline_handler
|
|--10.24%--kretprobe_rethook_handler
| |
| --9.28%--kretprobe_dispatcher
| |
| --6.35%--kretprobe_perf_func
| |
| --5.99%--trace_call_bpf
| |
| |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.95%--migrate_disable
|
--0.95%--objpool_push
11.91% 0.69% bench [kernel.kallsyms] [k] rethook_trampoline_handler
|
|--11.22%--rethook_trampoline_handler
| |
| |--10.24%--kretprobe_rethook_handler
| | |
| | --9.28%--kretprobe_dispatcher
| | |
| | --6.35%--kretprobe_perf_func
| | |
| | --5.99%--trace_call_bpf
| | |
| | |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| | |
| | --0.95%--migrate_disable
| |
| --0.95%--objpool_push
|
--0.69%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
10.76% 2.20% bench [kernel.kallsyms] [k] kprobe_ftrace_handler
|
|--8.55%--kprobe_ftrace_handler
| |
| |--6.06%--pre_handler_kretprobe
| | |
| | |--3.10%--objpool_pop
| | |
| | --1.86%--rethook_try_get
| |
| |--2.00%--rcu_is_watching
| |
| --0.50%--get_kprobe
|
--2.20%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
10.24% 0.96% bench [kernel.kallsyms] [k] kretprobe_rethook_handler
|
|--9.28%--kretprobe_rethook_handler
| kretprobe_dispatcher
| |
| --6.35%--kretprobe_perf_func
| |
| --5.99%--trace_call_bpf
| |
| |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.95%--migrate_disable
|
--0.96%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
9.28% 2.85% bench [kernel.kallsyms] [k] kretprobe_dispatcher
|
|--6.43%--kretprobe_dispatcher
| |
| --6.35%--kretprobe_perf_func
| |
| --5.99%--trace_call_bpf
| |
| |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.95%--migrate_disable
|
--2.85%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
6.35% 0.36% bench [kernel.kallsyms] [k] kretprobe_perf_func
|
--5.99%--kretprobe_perf_func
trace_call_bpf
|
|--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--0.95%--migrate_disable
6.29% 0.27% bench [kernel.kallsyms] [k] do_getpgid
|
--6.02%--do_getpgid
|
--5.54%--find_task_by_vpid
|
|--2.01%--idr_find
|
--1.52%--__radix_tree_lookup
6.23% 6.23% bench bpf_prog_21856463590f61f1_bench_trigger_kretprobe [k] bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
---start_thread
syscall
|
|--4.37%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
|
--1.86%--entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
bpf_prog_21856463590f61f1_bench_trigger_kretprobe
6.06% 0.89% bench [kernel.kallsyms] [k] pre_handler_kretprobe
|
|--5.17%--pre_handler_kretprobe
| |
| |--3.10%--objpool_pop
| |
| --1.86%--rethook_try_get
|
--0.89%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
pre_handler_kretprobe
5.99% 2.67% bench [kernel.kallsyms] [k] trace_call_bpf
|
|--3.32%--trace_call_bpf
| |
| |--1.86%--bpf_prog_21856463590f61f1_bench_trigger_kretprobe
| |
| --0.95%--migrate_disable
|
--2.67%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
5.54% 1.97% bench [kernel.kallsyms] [k] find_task_by_vpid
|
|--3.57%--find_task_by_vpid
| |
| |--2.01%--idr_find
| |
| --1.52%--__radix_tree_lookup
|
--1.97%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
3.10% 3.10% bench [kernel.kallsyms] [k] objpool_pop
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
pre_handler_kretprobe
objpool_pop
2.08% 2.08% bench [kernel.kallsyms] [k] rcu_is_watching
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
|
--2.00%--rcu_is_watching
2.01% 2.01% bench [kernel.kallsyms] [k] idr_find
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
idr_find
1.86% 1.78% bench [kernel.kallsyms] [k] rethook_try_get
|
--1.78%--start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
pre_handler_kretprobe
rethook_try_get
1.75% 1.75% bench bench [.] syscall@plt
|
---start_thread
syscall@plt
1.52% 1.52% bench [kernel.kallsyms] [k] __radix_tree_lookup
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
do_getpgid
find_task_by_vpid
__radix_tree_lookup
0.95% 0.95% bench [kernel.kallsyms] [k] objpool_push
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
objpool_push
0.95% 0.95% bench [kernel.kallsyms] [k] migrate_disable
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
arch_rethook_trampoline
arch_rethook_trampoline_callback
rethook_trampoline_handler
kretprobe_rethook_handler
kretprobe_dispatcher
kretprobe_perf_func
trace_call_bpf
migrate_disable
0.53% 0.53% bench [kernel.kallsyms] [k] syscall_exit_to_user_mode
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
syscall_exit_to_user_mode
0.50% 0.50% bench [kernel.kallsyms] [k] get_kprobe
|
---start_thread
syscall
entry_SYSCALL_64_after_hwframe
do_syscall_64
__x64_sys_getpgid
ftrace_trampoline
kprobe_ftrace_handler
get_kprobe
0.44% 0.44% bench [kernel.kallsyms] [k] __rcu_read_lock
0.35% 0.35% bench [kernel.kallsyms] [k] migrate_enable
0.29% 0.29% bench [kernel.kallsyms] [k] __x86_indirect_thunk_array
0.28% 0.00% bench libc.so.6 [.] __libc_start_call_main
0.28% 0.00% bench bench [.] main
0.28% 0.00% bench bench [.] setup_benchmark
0.27% 0.00% bench bench [.] trigger_kretprobe_setup
0.25% 0.00% bench bench [.] trigger_bench__open_and_load
0.25% 0.00% bench bench [.] bpf_object__load_skeleton
0.25% 0.00% bench bench [.] bpf_object__load
0.25% 0.00% bench bench [.] bpf_object_load
0.21% 0.21% bench [kernel.kallsyms] [k] __rcu_read_unlock
0.20% 0.14% bench [kernel.kallsyms] [k] rethook_hook
0.20% 0.20% bench bench [.] trigger_producer
0.14% 0.00% bench [kernel.kallsyms] [k] asm_exc_page_fault
0.14% 0.00% bench [kernel.kallsyms] [k] exc_page_fault
0.14% 0.01% bench [kernel.kallsyms] [k] do_user_addr_fault
0.14% 0.00% bench bench [.] libbpf_find_kernel_btf
0.13% 0.00% bench bench [.] bpf_object__load_vmlinux_btf
0.13% 0.00% bench bench [.] btf__parse
0.13% 0.00% bench bench [.] btf_parse
0.13% 0.00% bench bench [.] btf_parse_raw
0.13% 0.00% bench [kernel.kallsyms] [k] handle_mm_fault
0.13% 0.00% bench [kernel.kallsyms] [k] __handle_mm_fault
0.11% 0.00% bench bench [.] btf_new
0.10% 0.00% bench [unknown] [k] 0000000000000000
0.10% 0.00% bench [kernel.kallsyms] [k] do_anonymous_page
0.10% 0.00% bench [kernel.kallsyms] [k] get_page_from_freelist
0.10% 0.00% bench libc.so.6 [.] read
0.10% 0.00% bench [kernel.kallsyms] [k] ksys_read
0.10% 0.00% bench [kernel.kallsyms] [k] vfs_read
0.10% 0.00% bench [kernel.kallsyms] [k] rep_movs_alternative
0.10% 0.00% bench [kernel.kallsyms] [k] __alloc_pages
0.09% 0.00% bench [kernel.kallsyms] [k] kernfs_file_read_iter
0.09% 0.00% bench [kernel.kallsyms] [k] _copy_to_iter
0.09% 0.09% bench [kernel.kallsyms] [k] clear_page_orig
0.09% 0.00% bench [kernel.kallsyms] [k] alloc_pages_mpol
0.08% 0.00% bench [kernel.kallsyms] [k] vma_alloc_folio
0.07% 0.00% bench bench [.] bpf_object__load_progs
0.07% 0.00% bench bench [.] bpf_object_load_prog
0.07% 0.01% bench bench [.] btf_sanity_check
0.07% 0.00% bench bench [.] libbpf_prepare_prog_load
0.07% 0.00% bench bench [.] libbpf_find_attach_btf_id
0.07% 0.00% bench bench [.] find_kernel_btf_id
0.07% 0.00% bench bench [.] find_attach_btf_id
0.07% 0.00% bench bench [.] find_btf_by_prefix_kind
0.07% 0.00% bench bench [.] btf__find_by_name_kind
0.07% 0.07% bench [kernel.kallsyms] [k] arch_rethook_prepare
0.06% 0.01% bench bench [.] btf_validate_type
0.06% 0.02% bench bench [.] btf_find_by_name_kind
0.05% 0.05% bench [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
0.04% 0.00% bench libc.so.6 [.] __GI___libc_write
0.04% 0.00% bench [kernel.kallsyms] [k] ksys_write
0.04% 0.00% bench [kernel.kallsyms] [k] vfs_write
0.04% 0.00% bench [kernel.kallsyms] [k] file_tty_write.constprop.0
0.04% 0.00% bench [kernel.kallsyms] [k] iterate_tty_write
0.04% 0.00% bench [kernel.kallsyms] [k] n_tty_write
0.04% 0.00% bench [kernel.kallsyms] [k] uart_write
0.04% 0.00% bench [kernel.kallsyms] [k] process_output_block
0.03% 0.00% bench [kernel.kallsyms] [k] __x64_sys_bpf
0.03% 0.02% bench bench [.] btf__type_by_id
0.03% 0.00% bench [kernel.kallsyms] [k] __sys_bpf
0.03% 0.03% bench [kernel.kallsyms] [k] arch_rethook_fixup_return
0.03% 0.00% bench bench [.] feat_supported
0.03% 0.00% bench bench [.] sys_bpf_fd
0.03% 0.00% bench [kernel.kallsyms] [k] bpf_prog_load
0.03% 0.02% bench bench [.] btf_parse_type_sec
0.03% 0.03% bench [kernel.kallsyms] [k] radix_tree_lookup
0.03% 0.00% bench bench [.] bpf_program__attach
0.03% 0.00% bench [kernel.kallsyms] [k] do_pte_missing
0.03% 0.02% bench libc.so.6 [.] __memmove_sse2_unaligned_erms
0.03% 0.00% bench [kernel.kallsyms] [k] ftrace_modify_all_code
0.02% 0.00% bench bench [.] attach_kprobe
0.02% 0.00% bench bench [.] bpf_program__attach_kprobe_opts
0.02% 0.00% bench [kernel.kallsyms] [k] do_read_fault
0.02% 0.00% bench [kernel.kallsyms] [k] __do_fault
0.02% 0.00% bench [kernel.kallsyms] [k] 0xffffffff8108dbc8
0.02% 0.00% bench [kernel.kallsyms] [k] __do_sys_perf_event_open
0.02% 0.00% bench [kernel.kallsyms] [k] do_group_exit
0.02% 0.00% bench [kernel.kallsyms] [k] do_exit
0.02% 0.00% bench [kernel.kallsyms] [k] perf_event_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_replace_code
0.02% 0.00% bench [kernel.kallsyms] [k] perf_init_event
0.02% 0.00% bench [kernel.kallsyms] [k] __fput
0.02% 0.00% bench [kernel.kallsyms] [k] perf_try_init_event
0.02% 0.02% bench bench [.] btf_type_by_id
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_event_init
0.02% 0.02% bench bench [.] btf_kind
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_init
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_prog_select_runtime
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_int_jit_compile
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_jit_binary_pack_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] bpf_prog_pack_alloc
0.02% 0.00% bench [kernel.kallsyms] [k] filemap_fault
0.02% 0.00% bench [kernel.kallsyms] [k] alloc_new_pack
0.02% 0.01% bench [kernel.kallsyms] [k] smp_call_function_many_cond
0.02% 0.00% bench bench [.] bpf_object__probe_loading
0.02% 0.00% bench bench [.] sys_bpf_prog_load
0.02% 0.00% bench [kernel.kallsyms] [k] task_work_run
0.02% 0.01% bench bench [.] btf_validate_str
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_init
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_reg
0.02% 0.00% bench [kernel.kallsyms] [k] filemap_read_folio
0.02% 0.00% bench [kernel.kallsyms] [k] netfs_read_folio
0.02% 0.00% bench [kernel.kallsyms] [k] netfs_begin_read
0.02% 0.00% bench [kernel.kallsyms] [k] on_each_cpu_cond_mask
0.02% 0.00% bench bench [.] kernel_supports
0.02% 0.01% bench bench [.] btf__str_by_offset
0.02% 0.01% bench libc.so.6 [.] __strcmp_sse2
0.02% 0.00% bench [kernel.kallsyms] [k] perf_release
0.02% 0.00% bench [kernel.kallsyms] [k] perf_event_release_kernel
0.02% 0.00% bench [kernel.kallsyms] [k] _free_event
0.02% 0.00% bench [kernel.kallsyms] [k] perf_kprobe_destroy
0.02% 0.00% bench [kernel.kallsyms] [k] enable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] perf_trace_event_unreg.isra.0
0.02% 0.00% bench [kernel.kallsyms] [k] disable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] enable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] __arm_kprobe_ftrace
0.02% 0.00% bench [kernel.kallsyms] [k] __disable_trace_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] disable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] register_ftrace_function
0.02% 0.00% bench [kernel.kallsyms] [k] __disable_kprobe
0.02% 0.00% bench [kernel.kallsyms] [k] register_ftrace_function_nolock
0.02% 0.00% bench [kernel.kallsyms] [k] __disarm_kprobe_ftrace
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_startup
0.02% 0.00% bench [kernel.kallsyms] [k] unregister_ftrace_function
0.02% 0.00% bench [kernel.kallsyms] [k] ftrace_shutdown.part.0
0.02% 0.00% bench [kernel.kallsyms] [k] v9fs_issue_read
0.02% 0.00% bench [kernel.kallsyms] [k] p9_client_read
0.02% 0.00% bench [kernel.kallsyms] [k] p9_client_read_once
0.01% 0.01% bench [kernel.kallsyms] [k] memset_orig
0.01% 0.00% bench bench [.] bump_rlimit_memlock
0.01% 0.00% bench bench [.] probe_memcg_account
0.01% 0.01% bench bench [.] btf_vlen
0.01% 0.00% bench [kernel.kallsyms] [k] set_memory_rox
0.01% 0.00% bench [kernel.kallsyms] [k] change_page_attr_set_clr
0.01% 0.00% bench [kernel.kallsyms] [k] p9_client_zc_rpc.constprop.0
0.01% 0.00% bench [kernel.kallsyms] [k] p9_virtio_zc_request
0.01% 0.00% bench bench [.] bpf_object__sanitize_maps
0.01% 0.00% bench bench [.] bpf_prog_load
0.01% 0.00% bench bench [.] probe_kern_array_mmap
0.01% 0.00% bench bench [.] bpf_map_create
0.01% 0.00% bench bench [.] probe_kern_prog_name
0.01% 0.00% bench ld-linux-x86-64.so.2 [.] _dl_map_object
0.01% 0.00% bench bench [.] btf_validate_id
0.01% 0.01% bench [kernel.kallsyms] [k] default_send_IPI_allbutself
0.01% 0.01% bench [kernel.kallsyms] [k] ftrace_check_record
0.01% 0.01% bench [kernel.kallsyms] [k] ftrace_rec_iter_next
0.01% 0.01% bench [kernel.kallsyms] [k] default_send_IPI_self
0.01% 0.01% bench [kernel.kallsyms] [k] finish_task_switch.isra.0
0.01% 0.01% bench [kernel.kallsyms] [k] ftrace_rec_iter_record
0.01% 0.00% bench [kernel.kallsyms] [k] p9_get_mapped_pages.part.0.constprop.0
0.01% 0.01% bench bench [.] btf_strs_data
0.01% 0.01% bench [kernel.kallsyms] [k] mem_cgroup_commit_charge
0.01% 0.01% bench bench [.] btf_add_type_offs_mem
0.01% 0.00% bench bench [.] btf_type_size
0.01% 0.00% bench [unknown] [k] 0x000055fcb8980c50
0.01% 0.00% bench [unknown] [k] 0x32322e3239312820
0.01% 0.00% bench [unknown] [k] 0x35372e30312d2820
0.01% 0.00% bench [unknown] [k] 0x38392e3820202820
0.01% 0.00% bench [kernel.kallsyms] [k] zap_pte_range
0.01% 0.00% bench [kernel.kallsyms] [k] bpf_prog_release
0.01% 0.00% bench [kernel.kallsyms] [k] bpf_prog_put_deferred
0.01% 0.00% bench [kernel.kallsyms] [k] perf_event_bpf_event
0.01% 0.00% bench [kernel.kallsyms] [k] perf_iterate_sb
0.01% 0.00% bench [kernel.kallsyms] [k] bpf_check
0.01% 0.00% bench [kernel.kallsyms] [k] do_vmi_align_munmap.constprop.0
0.01% 0.00% bench [kernel.kallsyms] [k] perf_event_bpf_output
0.01% 0.00% bench [kernel.kallsyms] [k] kmalloc_large
0.01% 0.00% bench [kernel.kallsyms] [k] perf_output_end
0.01% 0.00% bench [kernel.kallsyms] [k] unmap_region
0.01% 0.00% bench [kernel.kallsyms] [k] unmap_vmas
0.01% 0.00% bench [kernel.kallsyms] [k] __kmalloc_large_node
0.01% 0.00% bench [kernel.kallsyms] [k] p9_client_rpc
0.01% 0.00% bench [kernel.kallsyms] [k] perf_output_put_handle
0.01% 0.00% bench [kernel.kallsyms] [k] rmqueue
0.01% 0.00% bench [kernel.kallsyms] [k] text_poke_bp_batch
0.01% 0.00% bench [kernel.kallsyms] [k] unmap_page_range
0.01% 0.00% bench [kernel.kallsyms] [k] cpa_flush
0.01% 0.00% bench [kernel.kallsyms] [k] do_output_char
0.01% 0.00% bench [kernel.kallsyms] [k] irq_work_queue
0.01% 0.00% bench [kernel.kallsyms] [k] schedule
0.01% 0.01% bench libc.so.6 [.] _IO_file_xsgetn
0.01% 0.00% bench [kernel.kallsyms] [k] __mem_cgroup_charge
0.01% 0.00% bench [kernel.kallsyms] [k] __schedule
0.01% 0.00% bench [kernel.kallsyms] [k] arch_irq_work_raise
0.01% 0.00% bench bench [.] btf__name_by_offset
0.00% 0.00% bench [kernel.kallsyms] [k] allocate_slab
0.00% 0.00% bench [kernel.kallsyms] [k] _raw_spin_trylock
0.00% 0.00% bench [kernel.kallsyms] [k] iter_xarray_get_pages
0.00% 0.00% bench [unknown] [k] 0x0000000000000040
0.00% 0.00% bench bench [.] bpf_object__create_maps
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] _dl_sysdep_start
0.00% 0.00% bench [kernel.kallsyms] [k] percpu_counter_add_batch
0.00% 0.00% bench [kernel.kallsyms] [k] within_kprobe_blacklist
0.00% 0.00% bench bench [.] bpf_object__populate_internal_map
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] dl_main
0.00% 0.00% bench libm.so.6 [.] __sqrt
0.00% 0.00% bench bench [.] bpf_map_update_elem
0.00% 0.00% bench bench [.] bpf_object__relocate
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] _dl_relocate_object
0.00% 0.00% bench [unknown] [k] 0x000000000000003f
0.00% 0.00% bench bench [.] bpf_program_fixup_func_info
0.00% 0.00% bench bench [.] bpf_program__attach_perf_event_opts
0.00% 0.00% bench [kernel.kallsyms] [k] folio_add_lru
0.00% 0.00% bench [kernel.kallsyms] [k] iov_iter_advance
0.00% 0.00% bench [kernel.kallsyms] [k] strncpy_from_user
0.00% 0.00% bench bench [.] probe_kern_arg_ctx_tag
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] __GI___read_nocancel
0.00% 0.00% bench libc.so.6 [.] __close
0.00% 0.00% bench libc.so.6 [.] __printf_fp
0.00% 0.00% bench [kernel.kallsyms] [k] folio_lruvec_lock_irqsave
0.00% 0.00% bench [kernel.kallsyms] [k] mas_walk
0.00% 0.00% bench [kernel.kallsyms] [k] map_update_elem
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] __GI___open64_nocancel
0.00% 0.00% bench [kernel.kallsyms] [k] folio_mark_accessed
0.00% 0.00% bench [kernel.kallsyms] [k] _copy_from_user
0.00% 0.00% bench ld-linux-x86-64.so.2 [.] mmap64
0.00% 0.00% bench [kernel.kallsyms] [k] __x64_sys_close
0.00% 0.00% bench libc.so.6 [.] _int_realloc
0.00% 0.00% bench [unknown] [k] 0x2020207374696820
0.00% 0.00% bench [unknown] [k] 0x2d6769727427206b
0.00% 0.00% bench [unknown] [k] 0x31342e33312d2820
0.00% 0.00% bench [unknown] [k] 0x31382e3631202820
0.00% 0.00% bench [unknown] [k] 0x33372e34332d2820
0.00% 0.00% bench [unknown] [k] 0x33392e3531202820
0.00% 0.00% bench [unknown] [k] 0x38342e36312d2820
0.00% 0.00% bench [unknown] [k] 0x68636e6562207075
0.00% 0.00% bench [kernel.kallsyms] [k] xas_find
0.00% 0.00% bench [kernel.kallsyms] [k] __x64_sys_openat
0.00% 0.00% bench bench [.] _start
0.00% 0.00% bench [kernel.kallsyms] [k] do_sys_openat2
0.00% 0.00% bench [kernel.kallsyms] [k] ksys_mmap_pgoff
0.00% 0.00% bench [kernel.kallsyms] [k] module_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] netfs_unbuffered_read_iter
0.00% 0.00% bench libc.so.6 [.] __munmap
0.00% 0.00% bench [kernel.kallsyms] [k] __register_ftrace_function
0.00% 0.00% bench [kernel.kallsyms] [k] __vmalloc_node_range
0.00% 0.00% bench [kernel.kallsyms] [k] do_filp_open
0.00% 0.00% bench [kernel.kallsyms] [k] netfs_unbuffered_read_iter_locked
0.00% 0.00% bench [kernel.kallsyms] [k] vm_mmap_pgoff
0.00% 0.00% bench libc.so.6 [.] _int_malloc
0.00% 0.00% bench libc.so.6 [.] __strlen_sse2
0.00% 0.00% bench [kernel.kallsyms] [k] __change_page_attr_set_clr
0.00% 0.00% bench [kernel.kallsyms] [k] __vmalloc_area_node
0.00% 0.00% bench [kernel.kallsyms] [k] do_mmap
0.00% 0.00% bench [kernel.kallsyms] [k] exit_mm
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_update_trampoline
0.00% 0.00% bench [kernel.kallsyms] [k] path_openat
0.00% 0.00% bench [kernel.kallsyms] [k] __x64_sys_munmap
0.00% 0.00% bench [kernel.kallsyms] [k] arch_ftrace_update_trampoline
0.00% 0.00% bench [kernel.kallsyms] [k] cpa_process_alias
0.00% 0.00% bench [kernel.kallsyms] [k] do_open
0.00% 0.00% bench [kernel.kallsyms] [k] mmap_region
0.00% 0.00% bench [kernel.kallsyms] [k] mmput
0.00% 0.00% bench [kernel.kallsyms] [k] vmap_small_pages_range_noflush
0.00% 0.00% bench [kernel.kallsyms] [k] __vm_munmap
0.00% 0.00% bench [kernel.kallsyms] [k] create_trampoline
0.00% 0.00% bench [kernel.kallsyms] [k] do_dentry_open
0.00% 0.00% bench [kernel.kallsyms] [k] exit_mmap
0.00% 0.00% bench [kernel.kallsyms] [k] ftrace_update_ftrace_func
0.00% 0.00% bench [kernel.kallsyms] [k] vmap_pages_pte_range
0.00% 0.00% bench [kernel.kallsyms] [k] __change_page_attr
0.00% 0.00% bench [kernel.kallsyms] [k] __pte_alloc_kernel
0.00% 0.00% bench [kernel.kallsyms] [k] create_local_trace_kprobe
0.00% 0.00% bench [kernel.kallsyms] [k] text_poke_bp
0.00% 0.00% bench [kernel.kallsyms] [k] v9fs_file_open
0.00% 0.00% bench [kernel.kallsyms] [k] __filemap_get_folio
0.00% 0.00% bench [kernel.kallsyms] [k] __split_large_page
0.00% 0.00% bench [kernel.kallsyms] [k] _vm_unmap_aliases
0.00% 0.00% bench [kernel.kallsyms] [k] lru_add_drain
0.00% 0.00% bench [kernel.kallsyms] [k] netfs_alloc_request
0.00% 0.00% bench [kernel.kallsyms] [k] p9_client_open
0.00% 0.00% bench [kernel.kallsyms] [k] register_kretprobe
0.00% 0.00% bench [kernel.kallsyms] [k] text_poke_finish
0.00% 0.00% bench libc.so.6 [.] __GI___printf_fp_l
0.00% 0.00% bench [kernel.kallsyms] [k] __kmalloc
0.00% 0.00% bench [kernel.kallsyms] [k] __purge_vmap_area_lazy
0.00% 0.00% bench [kernel.kallsyms] [k] __rmqueue_pcplist
0.00% 0.00% bench [kernel.kallsyms] [k] filemap_map_pages
0.00% 0.00% bench [kernel.kallsyms] [k] lru_add_drain_cpu
0.00% 0.00% bench [kernel.kallsyms] [k] register_kprobe
0.00% 0.00% bench [kernel.kallsyms] [k] shmem_fault
0.00% 0.00% bench bench [.] bpf_object__open_skeleton
0.00% 0.00% bench libc.so.6 [.] __unregister_atfork
0.00% 0.00% bench [kernel.kallsyms] [k] ___slab_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] check_kprobe_address_safe
0.00% 0.00% bench [kernel.kallsyms] [k] folio_batch_move_lru
0.00% 0.00% bench [kernel.kallsyms] [k] iov_iter_get_pages_alloc2
0.00% 0.00% bench [kernel.kallsyms] [k] lock_vma_under_rcu
0.00% 0.00% bench [kernel.kallsyms] [k] netfs_rreq_prepare_read
0.00% 0.00% bench [kernel.kallsyms] [k] next_uptodate_folio
0.00% 0.00% bench [kernel.kallsyms] [k] p9_virtio_request
0.00% 0.00% bench [kernel.kallsyms] [k] pcpu_alloc
0.00% 0.00% bench [kernel.kallsyms] [k] rmqueue_bulk
0.00% 0.00% bench [kernel.kallsyms] [k] shmem_get_folio_gfp
0.00% 0.00% bench [kernel.kallsyms] [k] zap_present_ptes
0.00% 0.00% bench bench [.] bpf_object__open_mem
0.00% 0.00% bench bench [.] btf_add_type_idx_entry
0.00% 0.00% bench libc.so.6 [.] __vfprintf_internal
0.00% 0.00% bench [unknown] [.] 0xdfac2c2953a319ce
#
# (Tip: To separate samples by time use perf report --sort time,overhead,sym)
#
next prev parent reply other threads:[~2024-04-30 13:32 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-15 12:48 [PATCH v9 00/36] tracing: fprobe: function_graph: Multi-function graph and fprobe on fgraph Masami Hiramatsu (Google)
2024-04-15 12:49 ` [PATCH v9 01/36] tracing: Add a comment about ftrace_regs definition Masami Hiramatsu (Google)
2024-04-24 12:23 ` Florent Revest
2024-04-24 13:19 ` Florent Revest
2024-04-24 14:31 ` Masami Hiramatsu
2024-04-15 12:49 ` [PATCH v9 02/36] tracing: Rename ftrace_regs_return_value to ftrace_regs_get_return_value Masami Hiramatsu (Google)
2024-04-15 12:49 ` [PATCH v9 03/36] x86: tracing: Add ftrace_regs definition in the header Masami Hiramatsu (Google)
2024-04-15 12:49 ` [PATCH v9 04/36] function_graph: Convert ret_stack to a series of longs Masami Hiramatsu (Google)
2024-04-15 12:49 ` [PATCH v9 05/36] fgraph: Use BUILD_BUG_ON() to make sure we have structures divisible by long Masami Hiramatsu (Google)
2024-04-15 12:50 ` [PATCH v9 06/36] function_graph: Add an array structure that will allow multiple callbacks Masami Hiramatsu (Google)
2024-04-15 12:50 ` [PATCH v9 07/36] function_graph: Allow multiple users to attach to function graph Masami Hiramatsu (Google)
2024-04-20 3:52 ` Steven Rostedt
2024-04-20 8:56 ` Masami Hiramatsu
2024-04-15 12:50 ` [PATCH v9 08/36] function_graph: Remove logic around ftrace_graph_entry and return Masami Hiramatsu (Google)
2024-04-15 12:50 ` [PATCH v9 09/36] ftrace/function_graph: Pass fgraph_ops to function graph callbacks Masami Hiramatsu (Google)
2024-04-15 12:50 ` [PATCH v9 10/36] ftrace: Allow function_graph tracer to be enabled in instances Masami Hiramatsu (Google)
2024-04-15 12:51 ` [PATCH v9 11/36] ftrace: Allow ftrace startup flags exist without dynamic ftrace Masami Hiramatsu (Google)
2024-04-15 12:51 ` [PATCH v9 12/36] function_graph: Have the instances use their own ftrace_ops for filtering Masami Hiramatsu (Google)
2024-04-15 12:51 ` [PATCH v9 13/36] function_graph: Use a simple LRU for fgraph_array index number Masami Hiramatsu (Google)
2024-04-15 12:51 ` [PATCH v9 14/36] function_graph: Add "task variables" per task for fgraph_ops Masami Hiramatsu (Google)
2024-04-15 12:51 ` [PATCH v9 15/36] function_graph: Move set_graph_function tests to shadow stack global var Masami Hiramatsu (Google)
2024-04-15 12:52 ` [PATCH v9 16/36] function_graph: Move graph depth stored data " Masami Hiramatsu (Google)
2024-04-15 12:52 ` [PATCH v9 17/36] function_graph: Move graph notrace bit " Masami Hiramatsu (Google)
2024-04-15 12:52 ` [PATCH v9 18/36] function_graph: Implement fgraph_reserve_data() and fgraph_retrieve_data() Masami Hiramatsu (Google)
2024-04-15 12:52 ` [PATCH v9 19/36] function_graph: Add selftest for passing local variables Masami Hiramatsu (Google)
2024-04-15 12:52 ` [PATCH v9 20/36] ftrace: Add multiple fgraph storage selftest Masami Hiramatsu (Google)
2024-04-15 12:53 ` [PATCH v9 21/36] function_graph: Pass ftrace_regs to entryfunc Masami Hiramatsu (Google)
2024-04-15 12:53 ` [PATCH v9 22/36] function_graph: Replace fgraph_ret_regs with ftrace_regs Masami Hiramatsu (Google)
2024-04-15 12:53 ` [PATCH v9 23/36] function_graph: Pass ftrace_regs to retfunc Masami Hiramatsu (Google)
2024-04-15 12:53 ` [PATCH v9 24/36] fprobe: Use ftrace_regs in fprobe entry handler Masami Hiramatsu (Google)
2024-04-15 12:53 ` [PATCH v9 25/36] fprobe: Use ftrace_regs in fprobe exit handler Masami Hiramatsu (Google)
2024-04-15 12:54 ` [PATCH v9 26/36] tracing: Add ftrace_partial_regs() for converting ftrace_regs to pt_regs Masami Hiramatsu (Google)
2024-04-15 12:54 ` [PATCH v9 27/36] tracing: Add ftrace_fill_perf_regs() for perf event Masami Hiramatsu (Google)
2024-04-15 12:54 ` [PATCH v9 28/36] tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS Masami Hiramatsu (Google)
2024-04-15 12:54 ` [PATCH v9 29/36] bpf: Enable kprobe_multi feature if CONFIG_FPROBE is enabled Masami Hiramatsu (Google)
2024-04-25 20:09 ` Andrii Nakryiko
2024-04-29 14:57 ` Masami Hiramatsu
2024-04-15 12:54 ` [PATCH v9 30/36] ftrace: Add CONFIG_HAVE_FTRACE_GRAPH_FUNC Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 31/36] fprobe: Rewrite fprobe on function-graph tracer Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 32/36] tracing/fprobe: Remove nr_maxactive from fprobe Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 33/36] selftests: ftrace: Remove obsolate maxactive syntax check Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 34/36] selftests/ftrace: Add a test case for repeating register/unregister fprobe Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 35/36] Documentation: probes: Update fprobe on function-graph tracer Masami Hiramatsu (Google)
2024-04-15 12:55 ` [PATCH v9 36/36] fgraph: Skip recording calltime/rettime if it is not nneeded Masami Hiramatsu (Google)
2024-04-25 20:15 ` Andrii Nakryiko
2024-04-29 14:56 ` Masami Hiramatsu
2024-04-19 5:36 ` [PATCH v9 00/36] tracing: fprobe: function_graph: Multi-function graph and fprobe on fgraph Masami Hiramatsu
2024-04-19 8:01 ` Steven Rostedt
2024-04-24 13:35 ` Florent Revest
2024-04-25 15:10 ` Masami Hiramatsu
2024-04-25 20:31 ` Andrii Nakryiko
2024-04-28 23:25 ` Steven Rostedt
2024-04-29 20:28 ` Andrii Nakryiko
2024-04-29 13:51 ` Masami Hiramatsu
2024-04-29 20:25 ` Andrii Nakryiko
2024-04-30 13:32 ` Masami Hiramatsu [this message]
2024-04-30 16:29 ` Andrii Nakryiko
2024-05-02 2:06 ` Masami Hiramatsu
2024-05-07 21:04 ` Andrii Nakryiko
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