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| author |   Menglong Dong <menglong8.dong@gmail.com> | 2025-10-15 16:32:37 +0800 |
|---|---|---|
| committer |   Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2025-11-11 22:32:09 +0900 |
| commit | 2c67dc457bc67367dc8fcd8f471ce2d5bb5f7b2b (patch) | |
| tree | b59ca28fc928398f08b8f1dc84a14e2a976bc3b2 /tools/lib/python/kdoc | |
| parent | tracing: fprobe: Fix to init fprobe_ip_table earlier (diff) | |
tracing: fprobe: optimization for entry only case
For now, fgraph is used for the fprobe, even if we need trace the entry
only. However, the performance of ftrace is better than fgraph, and we
can use ftrace_ops for this case.
Then performance of kprobe-multi increases from 54M to 69M. Before this
commit:
$ ./benchs/run_bench_trigger.sh kprobe-multi
kprobe-multi : 54.663 ± 0.493M/s
After this commit:
$ ./benchs/run_bench_trigger.sh kprobe-multi
kprobe-multi : 69.447 ± 0.143M/s
Mitigation is disable during the bench testing above.
Link: https://lore.kernel.org/all/20251015083238.2374294-2-dongml2@chinatelecom.cn/
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'tools/lib/python/kdoc')
0 files changed, 0 insertions, 0 deletions