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-rw-r--r--tools/testing/selftests/bpf/progs/trigger_bench.c107
1 files changed, 75 insertions, 32 deletions
diff --git a/tools/testing/selftests/bpf/progs/trigger_bench.c b/tools/testing/selftests/bpf/progs/trigger_bench.c
index 5fda43901033..2619ed193c65 100644
--- a/tools/testing/selftests/bpf/progs/trigger_bench.c
+++ b/tools/testing/selftests/bpf/progs/trigger_bench.c
@@ -1,6 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2020 Facebook
-
#include <linux/bpf.h>
#include <asm/unistd.h>
#include <bpf/bpf_helpers.h>
@@ -9,82 +8,126 @@
char _license[] SEC("license") = "GPL";
-long hits = 0;
+#define CPU_MASK 255
+#define MAX_CPUS (CPU_MASK + 1) /* should match MAX_BUCKETS in benchs/bench_trigger.c */
-SEC("tp/syscalls/sys_enter_getpgid")
-int bench_trigger_tp(void *ctx)
+/* matches struct counter in bench.h */
+struct counter {
+ long value;
+} __attribute__((aligned(128)));
+
+struct counter hits[MAX_CPUS];
+
+static __always_inline void inc_counter(void)
+{
+ int cpu = bpf_get_smp_processor_id();
+
+ __sync_add_and_fetch(&hits[cpu & CPU_MASK].value, 1);
+}
+
+SEC("?uprobe")
+int bench_trigger_uprobe(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("raw_tp/sys_enter")
-int BPF_PROG(bench_trigger_raw_tp, struct pt_regs *regs, long id)
+const volatile int batch_iters = 0;
+
+SEC("?raw_tp")
+int trigger_count(void *ctx)
{
- if (id == __NR_getpgid)
- __sync_add_and_fetch(&hits, 1);
+ int i;
+
+ for (i = 0; i < batch_iters; i++)
+ inc_counter();
+
return 0;
}
-SEC("kprobe/" SYS_PREFIX "sys_getpgid")
+SEC("?raw_tp")
+int trigger_driver(void *ctx)
+{
+ int i;
+
+ for (i = 0; i < batch_iters; i++)
+ (void)bpf_get_numa_node_id(); /* attach point for benchmarking */
+
+ return 0;
+}
+
+extern int bpf_modify_return_test_tp(int nonce) __ksym __weak;
+
+SEC("?raw_tp")
+int trigger_driver_kfunc(void *ctx)
+{
+ int i;
+
+ for (i = 0; i < batch_iters; i++)
+ (void)bpf_modify_return_test_tp(0); /* attach point for benchmarking */
+
+ return 0;
+}
+
+SEC("?kprobe/bpf_get_numa_node_id")
int bench_trigger_kprobe(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("kretprobe/" SYS_PREFIX "sys_getpgid")
+SEC("?kretprobe/bpf_get_numa_node_id")
int bench_trigger_kretprobe(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("kprobe.multi/" SYS_PREFIX "sys_getpgid")
+SEC("?kprobe.multi/bpf_get_numa_node_id")
int bench_trigger_kprobe_multi(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("kretprobe.multi/" SYS_PREFIX "sys_getpgid")
+SEC("?kretprobe.multi/bpf_get_numa_node_id")
int bench_trigger_kretprobe_multi(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("fentry/" SYS_PREFIX "sys_getpgid")
+SEC("?fentry/bpf_get_numa_node_id")
int bench_trigger_fentry(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("fexit/" SYS_PREFIX "sys_getpgid")
+SEC("?fexit/bpf_get_numa_node_id")
int bench_trigger_fexit(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}
-SEC("fentry.s/" SYS_PREFIX "sys_getpgid")
-int bench_trigger_fentry_sleep(void *ctx)
+SEC("?fmod_ret/bpf_modify_return_test_tp")
+int bench_trigger_fmodret(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
- return 0;
+ inc_counter();
+ return -22;
}
-SEC("fmod_ret/" SYS_PREFIX "sys_getpgid")
-int bench_trigger_fmodret(void *ctx)
+SEC("?tp/bpf_test_run/bpf_trigger_tp")
+int bench_trigger_tp(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
- return -22;
+ inc_counter();
+ return 0;
}
-SEC("uprobe")
-int bench_trigger_uprobe(void *ctx)
+SEC("?raw_tp/bpf_trigger_tp")
+int bench_trigger_rawtp(void *ctx)
{
- __sync_add_and_fetch(&hits, 1);
+ inc_counter();
return 0;
}