[PATCH RESEND bpf-next v3 0/3] selftests/bpf: benchmark all symbols for kprobe-multi

From: Menglong Dong
Date: Wed Sep 03 2025 - 22:10:32 EST


Add the benchmark testcase "kprobe-multi-all", which will hook all the
kernel functions during the testing.

This series is separated out from [1].

Changes since V2:
* add some comment to attach_ksyms_all, which notes that don't run the
testing on a debug kernel

Changes since V1:
* introduce trace_blacklist instead of copy-pasting strcmp in the 2nd
patch
* use fprintf() instead of printf() in 3rd patch

Link: https://lore.kernel.org/bpf/20250817024607.296117-1-dongml2@xxxxxxxxxxxxxxx/ [1]
Menglong Dong (3):
selftests/bpf: move get_ksyms and get_addrs to trace_helpers.c
selftests/bpf: skip recursive functions for kprobe_multi
selftests/bpf: add benchmark testing for kprobe-multi-all

tools/testing/selftests/bpf/bench.c | 4 +
.../selftests/bpf/benchs/bench_trigger.c | 61 +++++
.../selftests/bpf/benchs/run_bench_trigger.sh | 4 +-
.../bpf/prog_tests/kprobe_multi_test.c | 220 +---------------
.../selftests/bpf/progs/trigger_bench.c | 12 +
tools/testing/selftests/bpf/trace_helpers.c | 234 ++++++++++++++++++
tools/testing/selftests/bpf/trace_helpers.h | 3 +
7 files changed, 319 insertions(+), 219 deletions(-)

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2.51.0