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| author | Puranjay Mohan <puranjay@kernel.org> | 2026-04-27 16:23:00 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-05-11 15:25:24 -0700 |
| commit | dcf11479c2a8d3520953e8366f587ec2a36505a8 (patch) | |
| tree | a5164d044805ec8b27a33ed78fcd13c127b2fc22 /tools/testing/selftests/bpf/Makefile | |
| parent | 08158c111d7d87d88269d9f873a2fc54b87bcb99 (diff) | |
| download | linux-next-dcf11479c2a8d3520953e8366f587ec2a36505a8.tar.gz linux-next-dcf11479c2a8d3520953e8366f587ec2a36505a8.zip | |
selftests/bpf: Add bpf-nop benchmark for timing overhead baseline
Add a minimal benchmark that measures the overhead of the batch-timing
infrastructure itself. The BPF program runs an empty BENCH_BPF_LOOP body
(~1.5-2 ns/op), establishing the floor cost that all timing-library
benchmarks include.
[root@virtme-ng tools/testing/selftests/bpf]# sudo ./bench -a -p8 bpf-nop
Setting up benchmark 'bpf-nop'...
Benchmark 'bpf-nop' started.
bpf-nop: median 1.82 ns/op, stddev 0.01, p99 1.86 (1754 samples)
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Link: https://lore.kernel.org/r/20260427232313.1582588-4-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 3d516f10f29e..97f9fbd41244 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -906,6 +906,7 @@ $(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h $(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h $(OUTPUT)/bench_sockmap.o: $(OUTPUT)/bench_sockmap_prog.skel.h $(OUTPUT)/bench_lpm_trie_map.o: $(OUTPUT)/lpm_trie_bench.skel.h $(OUTPUT)/lpm_trie_map.skel.h +$(OUTPUT)/bench_bpf_nop.o: $(OUTPUT)/bpf_nop_bench.skel.h bench_bpf_timing.h $(OUTPUT)/bench_bpf_timing.o: bench_bpf_timing.h $(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) $(OUTPUT)/bench: LDLIBS += -lm @@ -930,6 +931,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o \ $(OUTPUT)/bench_sockmap.o \ $(OUTPUT)/bench_lpm_trie_map.o \ $(OUTPUT)/bench_bpf_timing.o \ + $(OUTPUT)/bench_bpf_nop.o \ $(OUTPUT)/usdt_1.o \ $(OUTPUT)/usdt_2.o \ # |