linux-kernel - [PATCH bpf-next] selftests/bpf: call bpf_get_numa_node_id() in trigger

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Message-ID: <20251116014242.151110-1-dongml2@chinatelecom.cn>
Date: Sun, 16 Nov 2025 09:42:42 +0800
From: Menglong Dong <menglong8.dong@...il.com>
To: andrii@...nel.org
Cc: ast@...nel.org,
	daniel@...earbox.net,
	martin.lau@...ux.dev,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	john.fastabend@...il.com,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	shuah@...nel.org,
	mingo@...nel.org,
	jiang.biao@...ux.dev,
	bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next] selftests/bpf: call bpf_get_numa_node_id() in trigger_count()

The bench test "trig-kernel-count" can be used as a baseline comparison
for fentry and other benchmarks, and the calling to bpf_get_numa_node_id()
should be considered as composition of the baseline. So, let's call it in
trigger_count(). Meanwhile, rename trigger_count() to
trigger_kernel_count() to make it easier understand.

Signed-off-by: Menglong Dong <dongml2@...natelecom.cn>
---
 tools/testing/selftests/bpf/benchs/bench_trigger.c | 4 ++--
 tools/testing/selftests/bpf/progs/trigger_bench.c  | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c
index 1e2aff007c2a..34018fc3927f 100644
--- a/tools/testing/selftests/bpf/benchs/bench_trigger.c
+++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c
@@ -180,10 +180,10 @@ static void trigger_kernel_count_setup(void)
 {
 	setup_ctx();
 	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false);
-	bpf_program__set_autoload(ctx.skel->progs.trigger_count, true);
+	bpf_program__set_autoload(ctx.skel->progs.trigger_kernel_count, true);
 	load_ctx();
 	/* override driver program */
-	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_count);
+	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_kernel_count);
 }
 
 static void trigger_kprobe_setup(void)
diff --git a/tools/testing/selftests/bpf/progs/trigger_bench.c b/tools/testing/selftests/bpf/progs/trigger_bench.c
index 3d5f30c29ae3..2898b3749d07 100644
--- a/tools/testing/selftests/bpf/progs/trigger_bench.c
+++ b/tools/testing/selftests/bpf/progs/trigger_bench.c
@@ -42,12 +42,14 @@ int bench_trigger_uprobe_multi(void *ctx)
 const volatile int batch_iters = 0;
 
 SEC("?raw_tp")
-int trigger_count(void *ctx)
+int trigger_kernel_count(void *ctx)
 {
 	int i;
 
-	for (i = 0; i < batch_iters; i++)
+	for (i = 0; i < batch_iters; i++) {
 		inc_counter();
+		bpf_get_numa_node_id();
+	}
 
 	return 0;
 }
-- 
2.51.2