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af894feb32
Some system calls never return because it'd terminate the calling
thread. Let's hook the task exit path and update the duration of the
last syscall.
Before:
$ sudo perf trace -as --bpf-summary -- true |& grep exit
(nothing)
After:
$ sudo perf trace -as --bpf-summary -- true |& grep exit
exit_group 1 0 0.004 0.004 0.004 0.004 0.00%
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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|---|---|---|
| .. | ||
| vmlinux | ||
| .gitignore | ||
| augmented_raw_syscalls.bpf.c | ||
| bench_uprobe.bpf.c | ||
| bperf_cgroup.bpf.c | ||
| bperf_cgroup.h | ||
| bperf_follower.bpf.c | ||
| bperf_leader.bpf.c | ||
| bperf_u.h | ||
| bpf_prog_profiler.bpf.c | ||
| func_latency.bpf.c | ||
| kwork_top.bpf.c | ||
| kwork_trace.bpf.c | ||
| lock_contention.bpf.c | ||
| lock_data.h | ||
| off_cpu.bpf.c | ||
| perf_version.h | ||
| sample_filter.bpf.c | ||
| sample-filter.h | ||
| syscall_summary.bpf.c | ||
| syscall_summary.h | ||