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selftests/bpf: Add kprobe multi triggering benchmarks

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Adding kprobe multi triggering benchmarks. It's useful now to bench
new fprobe implementation and might be useful later as well.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240311211023.590321-1-jolsa@kernel.org
This commit is contained in:
Jiri Olsa 2024-03-11 22:10:23 +01:00 • committed by Andrii Nakryiko
parent 08701e306e
commit 379b97bbf0
3 changed files with 50 additions and 0 deletions
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4
tools/testing/selftests/bpf/bench.c
View file

@ -496,6 +496,8 @@ 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_kretprobe;
extern const struct bench bench_trig_kprobe_multi;
extern const struct bench bench_trig_kretprobe_multi;
extern const struct bench bench_trig_fentry;
extern const struct bench bench_trig_fexit;
extern const struct bench bench_trig_fentry_sleep;
@ -542,6 +544,8 @@ static const struct bench *benchs[] = {
&bench_trig_rawtp,
&bench_trig_kprobe,
&bench_trig_kretprobe,
&bench_trig_kprobe_multi,
&bench_trig_kretprobe_multi,
&bench_trig_fentry,
&bench_trig_fexit,
&bench_trig_fentry_sleep,

32
tools/testing/selftests/bpf/benchs/bench_trigger.c
View file

@ -91,6 +91,18 @@ static void trigger_kretprobe_setup(void)
attach_bpf(ctx.skel->progs.bench_trigger_kretprobe);
}
static void trigger_kprobe_multi_setup(void)
{
setup_ctx();
attach_bpf(ctx.skel->progs.bench_trigger_kprobe_multi);
}
static void trigger_kretprobe_multi_setup(void)
{
setup_ctx();
attach_bpf(ctx.skel->progs.bench_trigger_kretprobe_multi);
}
static void trigger_fentry_setup(void)
{
setup_ctx();
@ -283,6 +295,26 @@ const struct bench bench_trig_kretprobe = {
.report_final = hits_drops_report_final,
};
const struct bench bench_trig_kprobe_multi = {
.name = "trig-kprobe-multi",
.validate = trigger_validate,
.setup = trigger_kprobe_multi_setup,
.producer_thread = trigger_producer,
.measure = trigger_measure,
.report_progress = hits_drops_report_progress,
.report_final = hits_drops_report_final,
};
const struct bench bench_trig_kretprobe_multi = {
.name = "trig-kretprobe-multi",
.validate = trigger_validate,
.setup = trigger_kretprobe_multi_setup,
.producer_thread = trigger_producer,
.measure = trigger_measure,
.report_progress = hits_drops_report_progress,
.report_final = hits_drops_report_final,
};
const struct bench bench_trig_fentry = {
.name = "trig-fentry",
.validate = trigger_validate,

14
tools/testing/selftests/bpf/progs/trigger_bench.c
View file

@ -40,6 +40,20 @@ int bench_trigger_kretprobe(void *ctx)
return 0;
}
SEC("kprobe.multi/" SYS_PREFIX "sys_getpgid")
int bench_trigger_kprobe_multi(void *ctx)
{
__sync_add_and_fetch(&hits, 1);
return 0;
}
SEC("kretprobe.multi/" SYS_PREFIX "sys_getpgid")
int bench_trigger_kretprobe_multi(void *ctx)
{
__sync_add_and_fetch(&hits, 1);
return 0;
}
SEC("fentry/" SYS_PREFIX "sys_getpgid")
int bench_trigger_fentry(void *ctx)
{