diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bpf_loop_bench.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_loop_bench.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_loop_bench.c b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c new file mode 100644 index 000000000000..9dafdc244462 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> + +char _license[] SEC("license") = "GPL"; + +u32 nr_loops; +long hits; + +static int empty_callback(__u32 index, void *data) +{ + return 0; +} + +SEC("fentry/__x64_sys_getpgid") +int benchmark(void *ctx) +{ + for (int i = 0; i < 1000; i++) { + bpf_loop(nr_loops, empty_callback, NULL, 0); + + __sync_add_and_fetch(&hits, nr_loops); + } + return 0; +} |