From patchwork Thu Mar 4 19:22:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 393178 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8EDD6C433E6 for ; Thu, 4 Mar 2021 19:24:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BFD464F6D for ; Thu, 4 Mar 2021 19:24:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235146AbhCDTYD (ORCPT ); Thu, 4 Mar 2021 14:24:03 -0500 Received: from mx2.suse.de ([195.135.220.15]:51446 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235436AbhCDTXr (ORCPT ); Thu, 4 Mar 2021 14:23:47 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 7E03AAF72; Thu, 4 Mar 2021 19:22:27 +0000 (UTC) From: Daniel Wagner To: Clark Williams , John Kacur Cc: linux-rt-users@vger.kernel.org, Daniel Wagner Subject: [PATCH rt-tests v1 09/13] pip_stress: Add JSON output feature Date: Thu, 4 Mar 2021 20:22:16 +0100 Message-Id: <20210304192220.11272-10-dwagner@suse.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210304192220.11272-1-dwagner@suse.de> References: <20210304192220.11272-1-dwagner@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org Write the test results as JSON output to a file. This allows to simplifies any parsing later on. Signed-off-by: Daniel Wagner --- src/pi_tests/pip_stress.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/src/pi_tests/pip_stress.c b/src/pi_tests/pip_stress.c index 0831f698ff1d..be89af707ed4 100644 --- a/src/pi_tests/pip_stress.c +++ b/src/pi_tests/pip_stress.c @@ -67,18 +67,23 @@ struct State *statep; const int policy = SCHED_FIFO; static int prio_min; /* Initialized for the minimum priority of policy */ +static char outfile[MAX_PATH]; + +static void write_stats(FILE *f, void *data); + static void usage(int error) { printf("pip_stress V %1.2f\n", VERSION); printf("Usage:\n" "pip_stress \n"\ - "-h --help Show this help menu.\n" + "-h --help Show this help menu.\n" + " --output=FILENAME write final results into FILENAME, JSON formatted\n" ); exit(error); } enum option_values { - OPT_HELP=1 + OPT_HELP=1, OPT_OUTPUT, }; int main(int argc, char *argv[]) @@ -89,9 +94,11 @@ int main(int argc, char *argv[]) int res; int *minimum_priority = (int*)&prio_min; + rt_init(argc, argv); for (;;) { struct option long_options[] = { {"help", no_argument, NULL, OPT_HELP}, + {"output", required_argument, NULL, OPT_OUTPUT }, {NULL, 0, NULL, 0} }; @@ -103,6 +110,9 @@ int main(int argc, char *argv[]) case 'h': usage(0); break; + case OPT_OUTPUT: + strncpy(outfile, optarg, strnlen(optarg, MAX_PATH-1)); + break; default: usage(1); break; @@ -145,6 +155,7 @@ int main(int argc, char *argv[]) err_exit(err, NULL); } + rt_test_start(); pid1 = fork(); if (pid1 == -1) { perror("fork"); @@ -165,6 +176,9 @@ int main(int argc, char *argv[]) } } + if (strlen(outfile) != 0) + rt_write_json(outfile, write_stats, NULL); + if (!statep->inversion) { printf("No inversion incurred\n"); exit(1); @@ -370,3 +384,8 @@ int get_rt_prio(pid_t pid) } return param.sched_priority; } + +static void write_stats(FILE *f, void *data) +{ + fprintf(f, " \"inversion\": %d\n", statep->inversion); +}