From patchwork Thu Nov 17 01:05:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaopeng Tan X-Patchwork-Id: 13046009 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 AF644C4332F for ; Thu, 17 Nov 2022 01:11:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234118AbiKQBLh (ORCPT ); Wed, 16 Nov 2022 20:11:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233955AbiKQBLg (ORCPT ); Wed, 16 Nov 2022 20:11:36 -0500 Received: from esa2.hc1455-7.c3s2.iphmx.com (esa2.hc1455-7.c3s2.iphmx.com [207.54.90.48]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 011DC1DF11; Wed, 16 Nov 2022 17:11:34 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="96213598" X-IronPort-AV: E=Sophos;i="5.96,169,1665414000"; d="scan'208";a="96213598" Received: from unknown (HELO yto-r2.gw.nic.fujitsu.com) ([218.44.52.218]) by esa2.hc1455-7.c3s2.iphmx.com with ESMTP; 17 Nov 2022 10:11:34 +0900 Received: from yto-m2.gw.nic.fujitsu.com (yto-nat-yto-m2.gw.nic.fujitsu.com [192.168.83.65]) by yto-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id 0309AC68E1; Thu, 17 Nov 2022 10:11:33 +0900 (JST) Received: from oym-om4.fujitsu.com (oym-om4.o.css.fujitsu.com [10.85.58.164]) by yto-m2.gw.nic.fujitsu.com (Postfix) with ESMTP id 454E3D35DB; Thu, 17 Nov 2022 10:11:32 +0900 (JST) Received: from cn-r05-10.example.com (n3235113.np.ts.nmh.cs.fujitsu.co.jp [10.123.235.113]) by oym-om4.fujitsu.com (Postfix) with ESMTP id 2458440089710; Thu, 17 Nov 2022 10:11:32 +0900 (JST) From: Shaopeng Tan To: Fenghua Yu , Reinette Chatre , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, tan.shaopeng@jp.fujitsu.com Subject: [PATCH v4 1/5] selftests/resctrl: Fix set up schemata with 100% allocation on first run in MBM test Date: Thu, 17 Nov 2022 10:05:37 +0900 Message-Id: <20221117010541.1014481-2-tan.shaopeng@jp.fujitsu.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> References: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org There is a comment "Set up shemata with 100% allocation on the first run" in function mbm_setup(), but there is an increment bug and the condition "num_of_runs == 0" will never be met and write_schemata() will never be called to set schemata to 100%. Even if write_schemata() is called in MBM test, since it is not supported for MBM test it does not set the schemata. This is currently fine because resctrl_val_parm->mum_resctrlfs is always 1 and umount/mount will be run in each test to set the schemata to 100%. To support the usage when MBM test does not unmount/remount resctrl filesystem before the test starts, fix to call write_schemata() and set schemata properly when the function is called for the first time. Also, remove static local variable 'num_of_runs' because this is not needed as there is resctrl_val_param->num_of_runs which should be used instead like in cat_setup(). Reviewed-by: Reinette Chatre Signed-off-by: Shaopeng Tan --- tools/testing/selftests/resctrl/mbm_test.c | 13 +++++++------ tools/testing/selftests/resctrl/resctrlfs.c | 4 +++- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c index 8392e5c55ed0..6d550f012829 100644 --- a/tools/testing/selftests/resctrl/mbm_test.c +++ b/tools/testing/selftests/resctrl/mbm_test.c @@ -89,23 +89,24 @@ static int check_results(int span) static int mbm_setup(int num, ...) { struct resctrl_val_param *p; - static int num_of_runs; va_list param; int ret = 0; - /* Run NUM_OF_RUNS times */ - if (num_of_runs++ >= NUM_OF_RUNS) - return -1; - va_start(param, num); p = va_arg(param, struct resctrl_val_param *); va_end(param); + /* Run NUM_OF_RUNS times */ + if (p->num_of_runs >= NUM_OF_RUNS) + return -1; + /* Set up shemata with 100% allocation on the first run. */ - if (num_of_runs == 0) + if (p->num_of_runs == 0) ret = write_schemata(p->ctrlgrp, "100", p->cpu_no, p->resctrl_val); + p->num_of_runs++; + return ret; } diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 6f543e470ad4..8546bc9f1786 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -498,6 +498,7 @@ int write_schemata(char *ctrlgrp, char *schemata, int cpu_no, char *resctrl_val) FILE *fp; if (strncmp(resctrl_val, MBA_STR, sizeof(MBA_STR)) && + strncmp(resctrl_val, MBM_STR, sizeof(MBM_STR)) && strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR)) && strncmp(resctrl_val, CMT_STR, sizeof(CMT_STR))) return -ENOENT; @@ -523,7 +524,8 @@ int write_schemata(char *ctrlgrp, char *schemata, int cpu_no, char *resctrl_val) if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR)) || !strncmp(resctrl_val, CMT_STR, sizeof(CMT_STR))) sprintf(schema, "%s%d%c%s", "L3:", resource_id, '=', schemata); - if (!strncmp(resctrl_val, MBA_STR, sizeof(MBA_STR))) + if (!strncmp(resctrl_val, MBA_STR, sizeof(MBA_STR)) || + !strncmp(resctrl_val, MBM_STR, sizeof(MBM_STR))) sprintf(schema, "%s%d%c%s", "MB:", resource_id, '=', schemata); fp = fopen(controlgroup, "w"); From patchwork Thu Nov 17 01:05:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaopeng Tan X-Patchwork-Id: 13046010 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 8550AC433FE for ; Thu, 17 Nov 2022 01:11:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234374AbiKQBLq (ORCPT ); Wed, 16 Nov 2022 20:11:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234238AbiKQBLj (ORCPT ); Wed, 16 Nov 2022 20:11:39 -0500 Received: from esa7.hc1455-7.c3s2.iphmx.com (esa7.hc1455-7.c3s2.iphmx.com [139.138.61.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A65C2496B; Wed, 16 Nov 2022 17:11:37 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="75100886" X-IronPort-AV: E=Sophos;i="5.96,169,1665414000"; d="scan'208";a="75100886" Received: from unknown (HELO yto-r4.gw.nic.fujitsu.com) ([218.44.52.220]) by esa7.hc1455-7.c3s2.iphmx.com with ESMTP; 17 Nov 2022 10:11:35 +0900 Received: from yto-m1.gw.nic.fujitsu.com (yto-nat-yto-m1.gw.nic.fujitsu.com [192.168.83.64]) by yto-r4.gw.nic.fujitsu.com (Postfix) with ESMTP id BB290D3EA0; Thu, 17 Nov 2022 10:11:34 +0900 (JST) Received: from oym-om4.fujitsu.com (oym-om4.o.css.fujitsu.com [10.85.58.164]) by yto-m1.gw.nic.fujitsu.com (Postfix) with ESMTP id 1B6D2CFF8A; Thu, 17 Nov 2022 10:11:34 +0900 (JST) Received: from cn-r05-10.example.com (n3235113.np.ts.nmh.cs.fujitsu.co.jp [10.123.235.113]) by oym-om4.fujitsu.com (Postfix) with ESMTP id ED07840089710; Thu, 17 Nov 2022 10:11:33 +0900 (JST) From: Shaopeng Tan To: Fenghua Yu , Reinette Chatre , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, tan.shaopeng@jp.fujitsu.com, Shuah Khan Subject: [PATCH v4 2/5] selftests/resctrl: Return MBA check result and make it to output message Date: Thu, 17 Nov 2022 10:05:38 +0900 Message-Id: <20221117010541.1014481-3-tan.shaopeng@jp.fujitsu.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> References: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Since MBA check result is not returned, the MBA test result message is always output as "ok" regardless of whether the MBA check result is true or false. Make output message to be "not ok" if MBA check result is failed. Reviewed-by: Shuah Khan Reviewed-by: Reinette Chatre Signed-off-by: Shaopeng Tan --- tools/testing/selftests/resctrl/mba_test.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c index 1a1bdb6180cf..e3a473976d74 100644 --- a/tools/testing/selftests/resctrl/mba_test.c +++ b/tools/testing/selftests/resctrl/mba_test.c @@ -51,10 +51,10 @@ static int mba_setup(int num, ...) return 0; } -static void show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc) +static bool show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc) { int allocation, runs; - bool failed = false; + bool ret = false; ksft_print_msg("Results are displayed in (MB)\n"); /* Memory bandwidth from 100% down to 10% */ @@ -90,13 +90,15 @@ static void show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc) ksft_print_msg("avg_bw_imc: %lu\n", avg_bw_imc); ksft_print_msg("avg_bw_resc: %lu\n", avg_bw_resc); if (avg_diff_per > MAX_DIFF_PERCENT) - failed = true; + ret = true; } ksft_print_msg("%s Check schemata change using MBA\n", - failed ? "Fail:" : "Pass:"); - if (failed) + ret ? "Fail:" : "Pass:"); + if (ret) ksft_print_msg("At least one test failed\n"); + + return ret; } static int check_results(void) @@ -132,9 +134,7 @@ static int check_results(void) fclose(fp); - show_mba_info(bw_imc, bw_resc); - - return 0; + return show_mba_info(bw_imc, bw_resc); } void mba_test_cleanup(void) From patchwork Thu Nov 17 01:05:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaopeng Tan X-Patchwork-Id: 13046011 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 9652AC43217 for ; Thu, 17 Nov 2022 01:11:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238592AbiKQBLr (ORCPT ); Wed, 16 Nov 2022 20:11:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234493AbiKQBLl (ORCPT ); Wed, 16 Nov 2022 20:11:41 -0500 Received: from esa12.hc1455-7.c3s2.iphmx.com (esa12.hc1455-7.c3s2.iphmx.com [139.138.37.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7EE91DF11; Wed, 16 Nov 2022 17:11:39 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="75835688" X-IronPort-AV: E=Sophos;i="5.96,169,1665414000"; d="scan'208";a="75835688" Received: from unknown (HELO yto-r2.gw.nic.fujitsu.com) ([218.44.52.218]) by esa12.hc1455-7.c3s2.iphmx.com with ESMTP; 17 Nov 2022 10:11:36 +0900 Received: from yto-m3.gw.nic.fujitsu.com (yto-nat-yto-m3.gw.nic.fujitsu.com [192.168.83.66]) by yto-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id C8AE5C68E4; Thu, 17 Nov 2022 10:11:35 +0900 (JST) Received: from oym-om4.fujitsu.com (oym-om4.o.css.fujitsu.com [10.85.58.164]) by yto-m3.gw.nic.fujitsu.com (Postfix) with ESMTP id 2D62CD9693; Thu, 17 Nov 2022 10:11:35 +0900 (JST) Received: from cn-r05-10.example.com (n3235113.np.ts.nmh.cs.fujitsu.co.jp [10.123.235.113]) by oym-om4.fujitsu.com (Postfix) with ESMTP id 0A7C540089710; Thu, 17 Nov 2022 10:11:35 +0900 (JST) From: Shaopeng Tan To: Fenghua Yu , Reinette Chatre , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, tan.shaopeng@jp.fujitsu.com, Shuah Khan Subject: [PATCH v4 3/5] selftests/resctrl: Flush stdout file buffer before executing fork() Date: Thu, 17 Nov 2022 10:05:39 +0900 Message-Id: <20221117010541.1014481-4-tan.shaopeng@jp.fujitsu.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> References: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org When a process has buffered output, a child process created by fork() will also copy buffered output. When using kselftest framework, the output (resctrl test result message) will be printed multiple times. Add fflush() to flush out the buffered output before executing fork(). Reviewed-by: Shuah Khan Reviewed-by: Reinette Chatre Signed-off-by: Shaopeng Tan --- tools/testing/selftests/resctrl/cat_test.c | 1 + tools/testing/selftests/resctrl/resctrl_val.c | 1 + tools/testing/selftests/resctrl/resctrlfs.c | 1 + 3 files changed, 3 insertions(+) diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index 1c5e90c63254..6a8306b0a109 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -167,6 +167,7 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type) return errno; } + fflush(stdout); bm_pid = fork(); /* Set param values for child thread which will be allocated bitmask diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c index b32b96356ec7..6948843bf995 100644 --- a/tools/testing/selftests/resctrl/resctrl_val.c +++ b/tools/testing/selftests/resctrl/resctrl_val.c @@ -629,6 +629,7 @@ int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param) * Fork to start benchmark, save child's pid so that it can be killed * when needed */ + fflush(stdout); bm_pid = fork(); if (bm_pid == -1) { perror("# Unable to fork"); diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 8546bc9f1786..d95688298469 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -678,6 +678,7 @@ int filter_dmesg(void) perror("pipe"); return ret; } + fflush(stdout); pid = fork(); if (pid == 0) { close(pipefds[0]); From patchwork Thu Nov 17 01:05:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaopeng Tan X-Patchwork-Id: 13046012 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 2613DC433FE for ; Thu, 17 Nov 2022 01:11:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238704AbiKQBLr (ORCPT ); Wed, 16 Nov 2022 20:11:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234174AbiKQBLm (ORCPT ); Wed, 16 Nov 2022 20:11:42 -0500 Received: from esa3.hc1455-7.c3s2.iphmx.com (esa3.hc1455-7.c3s2.iphmx.com [207.54.90.49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1BC3E3C6CF; Wed, 16 Nov 2022 17:11:40 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="96352867" X-IronPort-AV: E=Sophos;i="5.96,169,1665414000"; d="scan'208";a="96352867" Received: from unknown (HELO oym-r2.gw.nic.fujitsu.com) ([210.162.30.90]) by esa3.hc1455-7.c3s2.iphmx.com with ESMTP; 17 Nov 2022 10:11:39 +0900 Received: from oym-m2.gw.nic.fujitsu.com (oym-nat-oym-m2.gw.nic.fujitsu.com [192.168.87.59]) by oym-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id 62C0DD4C26; Thu, 17 Nov 2022 10:11:37 +0900 (JST) Received: from oym-om4.fujitsu.com (oym-om4.o.css.fujitsu.com [10.85.58.164]) by oym-m2.gw.nic.fujitsu.com (Postfix) with ESMTP id A2E99BD696; Thu, 17 Nov 2022 10:11:36 +0900 (JST) Received: from cn-r05-10.example.com (n3235113.np.ts.nmh.cs.fujitsu.co.jp [10.123.235.113]) by oym-om4.fujitsu.com (Postfix) with ESMTP id 8D53A40089714; Thu, 17 Nov 2022 10:11:36 +0900 (JST) From: Shaopeng Tan To: Fenghua Yu , Reinette Chatre , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, tan.shaopeng@jp.fujitsu.com, Shuah Khan Subject: [PATCH v4 4/5] selftests/resctrl: Cleanup properly when an error occurs in CAT test Date: Thu, 17 Nov 2022 10:05:40 +0900 Message-Id: <20221117010541.1014481-5-tan.shaopeng@jp.fujitsu.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> References: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org After creating a child process with fork() in CAT test, if there is an error occurs or such as a SIGINT signal is received, the parent process will be terminated immediately, but the child process will not be killed and also umount_resctrlfs() will not be called. Add a signal handler like other tests to kill child process, umount resctrlfs, cleanup result files, etc. if an error occurs in parent process. To use ctrlc_handler() of other tests to kill child process(bm_pid), using global bm_pid instead of local bm_pid. Wait for child process to be killed if an error occurs in child process. Reviewed-by: Shuah Khan Signed-off-by: Shaopeng Tan --- tools/testing/selftests/resctrl/cat_test.c | 30 ++++++++++++++-------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index 6a8306b0a109..1f8f5cf94e95 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -100,10 +100,10 @@ void cat_test_cleanup(void) int cat_perf_miss_val(int cpu_no, int n, char *cache_type) { + struct sigaction sigact; unsigned long l_mask, l_mask_1; int ret, pipefd[2], sibling_cpu_no; char pipe_message; - pid_t bm_pid; cache_size = 0; @@ -181,17 +181,25 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type) strcpy(param.filename, RESULT_FILE_NAME1); param.num_of_runs = 0; param.cpu_no = sibling_cpu_no; + } else { + /* + * Register CTRL-C handler for parent, as it has to kill + * child process before exiting + */ + sigact.sa_sigaction = ctrlc_handler; + sigemptyset(&sigact.sa_mask); + sigact.sa_flags = SA_SIGINFO; + if (sigaction(SIGINT, &sigact, NULL) || + sigaction(SIGTERM, &sigact, NULL) || + sigaction(SIGHUP, &sigact, NULL)) + perror("# sigaction"); } remove(param.filename); ret = cat_val(¶m); - if (ret) - return ret; - - ret = check_results(¶m); - if (ret) - return ret; + if (ret == 0) + ret = check_results(¶m); if (bm_pid == 0) { /* Tell parent that child is ready */ @@ -199,9 +207,11 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type) pipe_message = 1; if (write(pipefd[1], &pipe_message, sizeof(pipe_message)) < sizeof(pipe_message)) { - close(pipefd[1]); + /* + * Just print the error message. + * Let while(1) run and wait for itself to be killed. + */ perror("# failed signaling parent process"); - return errno; } close(pipefd[1]); @@ -226,5 +236,5 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type) if (bm_pid) umount_resctrlfs(); - return 0; + return ret; } From patchwork Thu Nov 17 01:05:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaopeng Tan X-Patchwork-Id: 13046013 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 E4634C4332F for ; Thu, 17 Nov 2022 01:11:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238402AbiKQBLw (ORCPT ); Wed, 16 Nov 2022 20:11:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238577AbiKQBLq (ORCPT ); Wed, 16 Nov 2022 20:11:46 -0500 Received: from esa6.hc1455-7.c3s2.iphmx.com (esa6.hc1455-7.c3s2.iphmx.com [68.232.139.139]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49C0769DF3; Wed, 16 Nov 2022 17:11:43 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="97042898" X-IronPort-AV: E=Sophos;i="5.96,169,1665414000"; d="scan'208";a="97042898" Received: from unknown (HELO yto-r1.gw.nic.fujitsu.com) ([218.44.52.217]) by esa6.hc1455-7.c3s2.iphmx.com with ESMTP; 17 Nov 2022 10:11:40 +0900 Received: from yto-m4.gw.nic.fujitsu.com (yto-nat-yto-m4.gw.nic.fujitsu.com [192.168.83.67]) by yto-r1.gw.nic.fujitsu.com (Postfix) with ESMTP id A29F7D66A9; Thu, 17 Nov 2022 10:11:38 +0900 (JST) Received: from oym-om4.fujitsu.com (oym-om4.o.css.fujitsu.com [10.85.58.164]) by yto-m4.gw.nic.fujitsu.com (Postfix) with ESMTP id E096C14209; Thu, 17 Nov 2022 10:11:37 +0900 (JST) Received: from cn-r05-10.example.com (n3235113.np.ts.nmh.cs.fujitsu.co.jp [10.123.235.113]) by oym-om4.fujitsu.com (Postfix) with ESMTP id BEA7740089714; Thu, 17 Nov 2022 10:11:37 +0900 (JST) From: Shaopeng Tan To: Fenghua Yu , Reinette Chatre , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, tan.shaopeng@jp.fujitsu.com Subject: [PATCH v4 5/5] selftests/resctrl: Remove duplicate codes that clear each test result file Date: Thu, 17 Nov 2022 10:05:41 +0900 Message-Id: <20221117010541.1014481-6-tan.shaopeng@jp.fujitsu.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> References: <20221117010541.1014481-1-tan.shaopeng@jp.fujitsu.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Before exiting each test function(run_cmt/cat/mbm/mba_test()), test results("ok","not ok") are printed by ksft_test_result() and then temporary result files are cleaned by function cmt/cat/mbm/mba_test_cleanup(). However, before running ksft_test_result(), function cmt/cat/mbm/mba_test_cleanup() has been run in each test function as follows: cmt_resctrl_val() cat_perf_miss_val() mba_schemata_change() mbm_bw_change() Remove duplicate codes that clear each test result file, while ensuring cleanup properly even when errors occur in each test. Signed-off-by: Shaopeng Tan Reviewed-by: Reinette Chatre --- tools/testing/selftests/resctrl/cmt_test.c | 7 +++---- tools/testing/selftests/resctrl/mba_test.c | 7 +++---- tools/testing/selftests/resctrl/mbm_test.c | 7 +++---- tools/testing/selftests/resctrl/resctrl_tests.c | 4 ---- 4 files changed, 9 insertions(+), 16 deletions(-) diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c index 8968e36db99d..617ee95d272d 100644 --- a/tools/testing/selftests/resctrl/cmt_test.c +++ b/tools/testing/selftests/resctrl/cmt_test.c @@ -133,13 +133,12 @@ int cmt_resctrl_val(int cpu_no, int n, char **benchmark_cmd) ret = resctrl_val(benchmark_cmd, ¶m); if (ret) - return ret; + goto out; ret = check_results(¶m, n); - if (ret) - return ret; +out: cmt_test_cleanup(); - return 0; + return ret; } diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c index e3a473976d74..b948938a3b4d 100644 --- a/tools/testing/selftests/resctrl/mba_test.c +++ b/tools/testing/selftests/resctrl/mba_test.c @@ -160,13 +160,12 @@ int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd) ret = resctrl_val(benchmark_cmd, ¶m); if (ret) - return ret; + goto out; ret = check_results(); - if (ret) - return ret; +out: mba_test_cleanup(); - return 0; + return ret; } diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c index 6d550f012829..040ca1f9c173 100644 --- a/tools/testing/selftests/resctrl/mbm_test.c +++ b/tools/testing/selftests/resctrl/mbm_test.c @@ -134,13 +134,12 @@ int mbm_bw_change(int span, int cpu_no, char *bw_report, char **benchmark_cmd) ret = resctrl_val(benchmark_cmd, ¶m); if (ret) - return ret; + goto out; ret = check_results(span); - if (ret) - return ret; +out: mbm_test_cleanup(); - return 0; + return ret; } diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index df0d8d8526fc..8732cf736528 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -88,7 +88,6 @@ static void run_mbm_test(bool has_ben, char **benchmark_cmd, int span, ksft_test_result(!res, "MBM: bw change\n"); if ((get_vendor() == ARCH_INTEL) && res) ksft_print_msg("Intel MBM may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n"); - mbm_test_cleanup(); } static void run_mba_test(bool has_ben, char **benchmark_cmd, int span, @@ -107,7 +106,6 @@ static void run_mba_test(bool has_ben, char **benchmark_cmd, int span, sprintf(benchmark_cmd[1], "%d", span); res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd); ksft_test_result(!res, "MBA: schemata change\n"); - mba_test_cleanup(); } static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) @@ -126,7 +124,6 @@ static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) ksft_test_result(!res, "CMT: test\n"); if ((get_vendor() == ARCH_INTEL) && res) ksft_print_msg("Intel CMT may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n"); - cmt_test_cleanup(); } static void run_cat_test(int cpu_no, int no_of_bits) @@ -142,7 +139,6 @@ static void run_cat_test(int cpu_no, int no_of_bits) res = cat_perf_miss_val(cpu_no, no_of_bits, "L3"); ksft_test_result(!res, "CAT: test\n"); - cat_test_cleanup(); } int main(int argc, char **argv)