Messages in this thread Patch in this message | | | From | Tiezhu Yang <> | Subject | [PATCH v3 2/3] perf bench syscall: Add close syscall benchmark | Date | Thu, 6 Oct 2022 15:42:09 +0800 |
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This commit adds a simple close syscall benchmark, more syscall benchmarks can be added in the future.
Here are the test results:
[loongson@linux perf]$ ./perf bench syscall
# List of available benchmarks for collection 'syscall':
basic: Benchmark for basic getppid(2) calls close: Benchmark for close(2) calls all: Run all syscall benchmarks
[loongson@linux perf]$ ./perf bench syscall basic # Running 'syscall/basic' benchmark: # Executed 10000000 getppid() calls Total time: 1.956 [sec]
0.195687 usecs/op 5110201 ops/sec [loongson@linux perf]$ ./perf bench syscall close # Running 'syscall/close' benchmark: # Executed 10000000 close() calls Total time: 6.302 [sec]
0.630297 usecs/op 1586553 ops/sec [loongson@linux perf]$ ./perf bench syscall all # Running syscall/basic benchmark... # Executed 10000000 getppid() calls Total time: 1.956 [sec]
0.195686 usecs/op 5110232 ops/sec
# Running syscall/close benchmark... # Executed 10000000 close() calls Total time: 6.302 [sec]
0.630271 usecs/op 1586619 ops/sec
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> --- tools/arch/x86/include/uapi/asm/unistd_32.h | 3 +++ tools/arch/x86/include/uapi/asm/unistd_64.h | 3 +++ tools/perf/bench/bench.h | 1 + tools/perf/bench/syscall.c | 11 +++++++++++ tools/perf/builtin-bench.c | 1 + 5 files changed, 19 insertions(+)
diff --git a/tools/arch/x86/include/uapi/asm/unistd_32.h b/tools/arch/x86/include/uapi/asm/unistd_32.h index 4a480a0..2f24b0eb 100644 --- a/tools/arch/x86/include/uapi/asm/unistd_32.h +++ b/tools/arch/x86/include/uapi/asm/unistd_32.h @@ -2,6 +2,9 @@ #ifndef __NR_perf_event_open # define __NR_perf_event_open 336 #endif +#ifndef __NR_close +# define __NR_close 6 +#endif #ifndef __NR_futex # define __NR_futex 240 #endif diff --git a/tools/arch/x86/include/uapi/asm/unistd_64.h b/tools/arch/x86/include/uapi/asm/unistd_64.h index 860257f..8eb32b2 100644 --- a/tools/arch/x86/include/uapi/asm/unistd_64.h +++ b/tools/arch/x86/include/uapi/asm/unistd_64.h @@ -2,6 +2,9 @@ #ifndef __NR_perf_event_open # define __NR_perf_event_open 298 #endif +#ifndef __NR_close +# define __NR_close 3 +#endif #ifndef __NR_futex # define __NR_futex 202 #endif diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h index 6cefb43..916cd47 100644 --- a/tools/perf/bench/bench.h +++ b/tools/perf/bench/bench.h @@ -34,6 +34,7 @@ int bench_numa(int argc, const char **argv); int bench_sched_messaging(int argc, const char **argv); int bench_sched_pipe(int argc, const char **argv); int bench_syscall_basic(int argc, const char **argv); +int bench_syscall_close(int argc, const char **argv); int bench_mem_memcpy(int argc, const char **argv); int bench_mem_memset(int argc, const char **argv); int bench_mem_find_bit(int argc, const char **argv); diff --git a/tools/perf/bench/syscall.c b/tools/perf/bench/syscall.c index 746fd71..058394b 100644 --- a/tools/perf/bench/syscall.c +++ b/tools/perf/bench/syscall.c @@ -46,6 +46,9 @@ static int bench_syscall_common(int argc, const char **argv, int syscall) case __NR_getppid: getppid(); break; + case __NR_close: + close(dup(0)); + break; default: break; } @@ -58,6 +61,9 @@ static int bench_syscall_common(int argc, const char **argv, int syscall) case __NR_getppid: name = "getppid()"; break; + case __NR_close: + name = "close()"; + break; default: break; } @@ -100,3 +106,8 @@ int bench_syscall_basic(int argc, const char **argv) { return bench_syscall_common(argc, argv, __NR_getppid); } + +int bench_syscall_close(int argc, const char **argv) +{ + return bench_syscall_common(argc, argv, __NR_close); +} diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index 334ab89..b63c711 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -52,6 +52,7 @@ static struct bench sched_benchmarks[] = { static struct bench syscall_benchmarks[] = { { "basic", "Benchmark for basic getppid(2) calls", bench_syscall_basic }, + { "close", "Benchmark for close(2) calls", bench_syscall_close }, { "all", "Run all syscall benchmarks", NULL }, { NULL, NULL, NULL }, }; -- 2.1.0
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