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| author | Alexei Starovoitov <ast@kernel.org> | 2020-08-27 15:01:14 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-08-28 21:20:33 +0200 |
| commit | e68a144547fc7a956952260539cb7b8bb9afbcc0 (patch) | |
| tree | 0751db49ba3afe3976061f9c6fd7ed2c44b6a5fe /tools/testing/selftests/bpf/bench.c | |
| parent | 2b288740a1072235166b2706e139f2725b5ea26f (diff) | |
selftests/bpf: Add sleepable tests
Modify few tests to sanity test sleepable bpf functionality.
Running 'bench trig-fentry-sleep' vs 'bench trig-fentry' and 'perf report':
sleepable with SRCU:
3.86% bench [k] __srcu_read_unlock
3.22% bench [k] __srcu_read_lock
0.92% bench [k] bpf_prog_740d4210cdcd99a3_bench_trigger_fentry_sleep
0.50% bench [k] bpf_trampoline_10297
0.26% bench [k] __bpf_prog_exit_sleepable
0.21% bench [k] __bpf_prog_enter_sleepable
sleepable with RCU_TRACE:
0.79% bench [k] bpf_prog_740d4210cdcd99a3_bench_trigger_fentry_sleep
0.72% bench [k] bpf_trampoline_10381
0.31% bench [k] __bpf_prog_exit_sleepable
0.29% bench [k] __bpf_prog_enter_sleepable
non-sleepable with RCU:
0.88% bench [k] bpf_prog_740d4210cdcd99a3_bench_trigger_fentry
0.84% bench [k] bpf_trampoline_10297
0.13% bench [k] __bpf_prog_enter
0.12% bench [k] __bpf_prog_exit
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: KP Singh <kpsingh@google.com>
Link: https://lore.kernel.org/bpf/20200827220114.69225-6-alexei.starovoitov@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/bench.c')
| -rw-r--r-- | tools/testing/selftests/bpf/bench.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c index 944ad4721c83c..1a427685a8a8f 100644 --- a/tools/testing/selftests/bpf/bench.c +++ b/tools/testing/selftests/bpf/bench.c @@ -317,6 +317,7 @@ extern const struct bench bench_trig_tp; extern const struct bench bench_trig_rawtp; extern const struct bench bench_trig_kprobe; extern const struct bench bench_trig_fentry; +extern const struct bench bench_trig_fentry_sleep; extern const struct bench bench_trig_fmodret; extern const struct bench bench_rb_libbpf; extern const struct bench bench_rb_custom; @@ -338,6 +339,7 @@ static const struct bench *benchs[] = { &bench_trig_rawtp, &bench_trig_kprobe, &bench_trig_fentry, + &bench_trig_fentry_sleep, &bench_trig_fmodret, &bench_rb_libbpf, &bench_rb_custom, |