From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 251DCECAAD3 for ; Tue, 6 Sep 2022 03:06:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238293AbiIFDGl (ORCPT ); Mon, 5 Sep 2022 23:06:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238206AbiIFDG2 (ORCPT ); Mon, 5 Sep 2022 23:06:28 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 00E4D27DDE; Mon, 5 Sep 2022 20:06:25 -0700 (PDT) Received: from linux.localdomain (unknown [113.200.148.30]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cx72spuRZj310SAA--.6686S5; Tue, 06 Sep 2022 11:06:19 +0800 (CST) From: Tiezhu Yang To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] perf bench syscall: Add execve syscall benchmark Date: Tue, 6 Sep 2022 11:06:17 +0800 Message-Id: <1662433577-23266-4-git-send-email-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1662433577-23266-1-git-send-email-yangtiezhu@loongson.cn> References: <1662433577-23266-1-git-send-email-yangtiezhu@loongson.cn> X-CM-TRANSID: AQAAf8Cx72spuRZj310SAA--.6686S5 X-Coremail-Antispam: 1UD129KBjvJXoWxWw13tw4xuw1rGr4DAryUAwb_yoWrCr4UpF s7C3W5Jw4rJryayr43Jr1q9Fy3Awn7Xr1Yyr1ayanxZrsrW34YqF42qa4F9F17Ww47K3y3 ur4kZFW8Wa1rAaUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUB2b7Iv0xC_KF4lb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI 8067AKxVWUWwA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF 64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcV CY1x0267AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280 aVCY1x0267AKxVWxJr0_GcWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4 CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvj eVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY02Avz4vE14v_Gr4l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxU4miiDUUUU X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This commit adds the execve 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 execve: Benchmark for execve(2) calls all: Run all syscall benchmarks [loongson@linux perf]$ ./perf bench syscall execve # Running 'syscall/execve' benchmark: # Executed 10000 execve() calls Total time: 4.827 [sec] 482.761800 usecs/op 2071 ops/sec [loongson@linux perf]$ ./perf bench syscall all # Running syscall/basic benchmark... # Executed 10000000 getppid() calls Total time: 1.956 [sec] 0.195692 usecs/op 5110065 ops/sec # Running syscall/close benchmark... # Executed 10000000 close() calls Total time: 6.306 [sec] 0.630692 usecs/op 1585558 ops/sec # Running syscall/execve benchmark... # Executed 10000 execve() calls Total time: 4.842 [sec] 484.299500 usecs/op 2064 ops/sec Signed-off-by: Tiezhu Yang --- tools/perf/bench/bench.h | 1 + tools/perf/bench/syscall.c | 36 ++++++++++++++++++++++++++++++++++++ tools/perf/builtin-bench.c | 1 + 3 files changed, 38 insertions(+) diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h index 916cd47..6ca3327 100644 --- a/tools/perf/bench/bench.h +++ b/tools/perf/bench/bench.h @@ -35,6 +35,7 @@ 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_syscall_execve(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 058394b..c8f8bee 100644 --- a/tools/perf/bench/syscall.c +++ b/tools/perf/bench/syscall.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -30,6 +31,27 @@ static const char * const bench_syscall_usage[] = { NULL }; +static void test_execve(void) +{ + const char *pathname = "/bin/true"; + char *const argv[] = { (char *)pathname, NULL }; + pid_t pid = fork(); + + if (pid < 0) { + fprintf(stderr, "fork failed\n"); + exit(1); + } else if (pid == 0) { + execve(pathname, argv, NULL); + fprintf(stderr, "execve /bin/true failed\n"); + exit(1); + } else { + if (waitpid(pid, NULL, 0) < 0) { + fprintf(stderr, "waitpid failed\n"); + exit(1); + } + } +} + static int bench_syscall_common(int argc, const char **argv, int syscall) { struct timeval start, stop, diff; @@ -49,6 +71,12 @@ static int bench_syscall_common(int argc, const char **argv, int syscall) case __NR_close: close(dup(0)); break; + case __NR_execve: + test_execve(); + /* Only loop 10000 times to save time */ + if (i == 10000) + loops = 10000; + break; default: break; } @@ -64,6 +92,9 @@ static int bench_syscall_common(int argc, const char **argv, int syscall) case __NR_close: name = "close()"; break; + case __NR_execve: + name = "execve()"; + break; default: break; } @@ -111,3 +142,8 @@ int bench_syscall_close(int argc, const char **argv) { return bench_syscall_common(argc, argv, __NR_close); } + +int bench_syscall_execve(int argc, const char **argv) +{ + return bench_syscall_common(argc, argv, __NR_execve); +} diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index b63c711..6f9ff75 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -53,6 +53,7 @@ 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 }, + { "execve", "Benchmark for execve(2) calls", bench_syscall_execve }, { "all", "Run all syscall benchmarks", NULL }, { NULL, NULL, NULL }, }; -- 2.1.0