From patchwork Fri Dec 18 16:18:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 345793 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 61709C2D0E4 for ; Fri, 18 Dec 2020 16:20:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2937623B6C for ; Fri, 18 Dec 2020 16:20:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731381AbgLRQUO (ORCPT ); Fri, 18 Dec 2020 11:20:14 -0500 Received: from mx2.suse.de ([195.135.220.15]:37366 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729109AbgLRQUO (ORCPT ); Fri, 18 Dec 2020 11:20:14 -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 166D4ADE2; Fri, 18 Dec 2020 16:18:52 +0000 (UTC) From: Daniel Wagner To: Clark Williams , John Kacur Cc: linux-rt-users@vger.kernel.org, Daniel Wagner Subject: [rt-tests v2 v2 05/20] cyclictest: Simplify --smp vs --affinity vs --threads argument logic Date: Fri, 18 Dec 2020 17:18:28 +0100 Message-Id: <20201218161843.1764-6-dwagner@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201218161843.1764-1-dwagner@suse.de> References: <20201218161843.1764-1-dwagner@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org Allow each command line only to update one variable and do the final decission at the end of the parsing step. With this the order of the command line is not important. Signed-off-by: Daniel Wagner --- src/cyclictest/cyclictest.c | 34 ++++++++-------------------------- 1 file changed, 8 insertions(+), 26 deletions(-) diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c index 23243ddfe9d3..a34b2140f940 100644 --- a/src/cyclictest/cyclictest.c +++ b/src/cyclictest/cyclictest.c @@ -885,14 +885,13 @@ static int timermode = TIMER_ABSTIME; static int use_system; static int priority; static int policy = SCHED_OTHER; /* default policy if not specified */ -static int num_threads = 1; +static int num_threads = -1; static int max_cycles; static int clocksel = 0; static int quiet; static int interval = DEFAULT_INTERVAL; static int distance = -1; static struct bitmask *affinity_mask = NULL; -static int smp = 0; static int clocksources[] = { CLOCK_MONOTONIC, @@ -958,7 +957,7 @@ enum option_values { static void process_options(int argc, char *argv[], int max_cpus) { int error = 0; - int option_affinity = 0; + int smp = 0; for (;;) { int option_index = 0; @@ -1013,10 +1012,6 @@ static void process_options(int argc, char *argv[], int max_cpus) switch (c) { case 'a': case OPT_AFFINITY: - option_affinity = 1; - /* smp sets AFFINITY_USEALL in OPT_SMP */ - if (smp) - break; if (optarg) { parse_cpumask(optarg, max_cpus, &affinity_mask); } else if (optind < argc && @@ -1024,8 +1019,6 @@ static void process_options(int argc, char *argv[], int max_cpus) argv[optind][0] == '0' || argv[optind][0] == '!')) { parse_cpumask(argv[optind], max_cpus, &affinity_mask); - } else { - num_threads = -1; } if (verbose) @@ -1117,22 +1110,14 @@ static void process_options(int argc, char *argv[], int max_cpus) case OPT_SYSTEM: use_system = MODE_SYS_OFFSET; break; case 'S': - case OPT_SMP: /* SMP testing */ - smp = 1; - num_threads = -1; /* update after parsing */ - break; + case OPT_SMP: + smp = 1; break; case 't': case OPT_THREADS: - if (smp) { - warn("-t ignored due to smp mode\n"); - break; - } if (optarg != NULL) num_threads = atoi(optarg); else if (optind < argc && atoi(argv[optind])) num_threads = atoi(argv[optind]); - else - num_threads = -1; /* update after parsing */ break; case OPT_TRIGGER: trigger = atoi(optarg); @@ -1188,13 +1173,10 @@ static void process_options(int argc, char *argv[], int max_cpus) use_nanosleep = MODE_CLOCK_NANOSLEEP; } - if (option_affinity && smp) { - warn("-a ignored due to smp mode\n"); - if (affinity_mask) { - numa_bitmask_free(affinity_mask); - affinity_mask = NULL; - } - } + if (smp && num_threads != -1) + warn("--threads overwrites smp mode\n"); + if (smp && affinity_mask) + warn("--affinity overwrites smp mode\n"); if (smi) { if (affinity_mask)