From patchwork Fri Jan 15 19:09:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 364231 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=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, 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 C9E92C433DB for ; Fri, 15 Jan 2021 19:11:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0FCD23A5E for ; Fri, 15 Jan 2021 19:11:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387813AbhAOTLD (ORCPT ); Fri, 15 Jan 2021 14:11:03 -0500 Received: from mx2.suse.de ([195.135.220.15]:43864 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387490AbhAOTLD (ORCPT ); Fri, 15 Jan 2021 14:11:03 -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 952E6AEBE; Fri, 15 Jan 2021 19:09:42 +0000 (UTC) From: Daniel Wagner To: Clark Williams , John Kacur Cc: linux-rt-users@vger.kernel.org, Daniel Wagner Subject: [RFC v3 11/19] cyclictest: Add JSON output feature Date: Fri, 15 Jan 2021 20:09:28 +0100 Message-Id: <20210115190936.26148-12-dwagner@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210115190936.26148-1-dwagner@suse.de> References: <20210115190936.26148-1-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/cyclictest/cyclictest.c | 46 ++++++++++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c index 245752dae2af..5e88213eeb13 100644 --- a/src/cyclictest/cyclictest.c +++ b/src/cyclictest/cyclictest.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include @@ -217,6 +218,7 @@ static struct timespec globalt; static char fifopath[MAX_PATH]; static char histfile[MAX_PATH]; +static char outfile[MAX_PATH]; static struct thread_param **parameters; static struct thread_stat **statistics; @@ -838,6 +840,7 @@ static void display_help(int error) " latency is hit. Useful for low bandwidth.\n" "-N --nsecs print results in ns instead of us (default us)\n" "-o RED --oscope=RED oscilloscope mode, reduce verbose output by RED\n" + " --output=FILENAME write final results into FILENAME, JSON formatted\n" "-p PRIO --priority=PRIO priority of highest prio thread\n" " --policy=NAME policy of measurement thread, where NAME may be one\n" " of: other, normal, batch, idle, fifo or rr.\n" @@ -945,7 +948,7 @@ enum option_values { OPT_TRIGGER_NODES, OPT_UNBUFFERED, OPT_NUMA, OPT_VERBOSE, OPT_DBGCYCLIC, OPT_POLICY, OPT_HELP, OPT_NUMOPTS, OPT_ALIGNED, OPT_SECALIGNED, OPT_LAPTOP, OPT_SMI, - OPT_TRACEMARK, OPT_POSIX_TIMERS, + OPT_TRACEMARK, OPT_POSIX_TIMERS, OPT_OUTPUT }; /* Process commandline options */ @@ -979,6 +982,7 @@ static void process_options(int argc, char *argv[]) {"refresh_on_max", no_argument, NULL, OPT_REFRESH }, {"nsecs", no_argument, NULL, OPT_NSECS }, {"oscope", required_argument, NULL, OPT_OSCOPE }, + {"output", required_argument, NULL, OPT_OUTPUT }, {"priority", required_argument, NULL, OPT_PRIORITY }, {"quiet", no_argument, NULL, OPT_QUIET }, {"priospread", no_argument, NULL, OPT_PRIOSPREAD }, @@ -1073,6 +1077,9 @@ static void process_options(int argc, char *argv[]) case 'o': case OPT_OSCOPE: oscope_reduction = atoi(optarg); break; + case OPT_OUTPUT: + strncpy(outfile, optarg, strnlen(optarg, MAX_PATH-1)); + break; case 'p': case OPT_PRIORITY: priority = atoi(optarg); @@ -1690,6 +1697,40 @@ static void rstat_setup(void) return; } +static void write_stats(FILE *f, void *data) +{ + struct thread_param **par = parameters; + unsigned int i, j, comma; + struct thread_stat *s; + + fprintf(f, " \"num_threads\": %d,\n", num_threads); + fprintf(f, " \"resolution_in_ns\": %u,\n", use_nsecs); + fprintf(f, " \"thread\": {\n"); + for (i = 0; i < num_threads; i++) { + fprintf(f, " \"%u\": {\n", i); + + fprintf(f, " \"histogram\": {"); + s = par[i]->stats; + for (j = 0, comma = 0; j < histogram; j++) { + if (s->hist_array[j] == 0) + continue; + fprintf(f, "%s", comma ? ",\n" : "\n"); + fprintf(f, " \"%u\": %" PRIu64,j, s->hist_array[j]); + comma = 1; + } + if (comma) + fprintf(f, "\n"); + fprintf(f, " },\n"); + fprintf(f, " \"cycles\": %" PRIu64 ",\n", s->cycles); + fprintf(f, " \"min\": %" PRIu64 ",\n", s->min); + fprintf(f, " \"max\": %" PRIu64 ",\n", s->max); + fprintf(f, " \"avg\": %.2f,\n", s->avg/s->cycles); + fprintf(f, " \"cpu\": %d,\n", par[i]->cpu); + fprintf(f, " \"node\": %d\n", par[i]->node); + fprintf(f, " }%s\n", i == num_threads - 1 ? "" : ","); + } + fprintf(f, " }\n"); +} int main(int argc, char **argv) { @@ -2033,6 +2074,9 @@ int main(int argc, char **argv) if (!verbose && !quiet && refresh_on_max) printf("\033[%dB", num_threads + 2); + if (strlen(outfile) != 0) + rt_write_json(outfile, argc, argv, write_stats, NULL); + if (quiet) quiet = 2; for (i = 0; i < num_threads; i++) {