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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q125-20020a632a83000000b0052cc0c1c39csi6918388pgq.815.2023.05.11.11.20.43; Thu, 11 May 2023 11:20:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=NUiqmnmx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239130AbjEKSFY (ORCPT + 99 others); Thu, 11 May 2023 14:05:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238948AbjEKSFQ (ORCPT ); Thu, 11 May 2023 14:05:16 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7C4F79039; Thu, 11 May 2023 11:04:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 886336508D; Thu, 11 May 2023 18:04:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D52B0C433EF; Thu, 11 May 2023 18:04:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683828284; bh=ilvKubt4M+tI9BEkBeyxjS9nZpmPWWkvlzUOJ9vM89c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NUiqmnmxxmG6u4LCBBv+nonEjG9ztKhZALZg1D+LsQTzKu0NWQrGUgWn5PziC+dk0 l48hKPAGWxqp1YshMPULTb1QR1LS9t4ZQkZIBger1N2jtmQIRQWQRA/dWrdiNJdXTv yTWQ1pJI5N9Fd4nSMRxpUtXADyJwJjUyCSTc1oPaHfEitYjLO3faj7E5pRQ86cjSlB 4AP9R+HrsXu7D5MhzsrjvkJ2k4bFAsZWlFof1j3NDZZWohLXiiReVnZrZOUtBsL3NL 57v4KvB078G2YcoqNcGYmDC0Kou7KTjfQVmZ+kHEH5+24NoyW4BrWb9bzJK9/PWw/E xSomn78xxvfIg== From: Daniel Bristot de Oliveira To: linux-trace-devel@vger.kernel.org, Steven Rostedt Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Juri Lelli , William White , Daniel Bristot de Oliveira , Masami Hiramatsu , Jonathan Corbet Subject: [PATCH 3/8] rtla: Change monitored_cpus from char * to cpu_set_t Date: Thu, 11 May 2023 20:04:21 +0200 Message-Id: <0b2e708c5951e5e3016b0a3838960066cfcea19d.1683827510.git.bristot@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: References: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1765622946709608542?= X-GMAIL-MSGID: =?utf-8?q?1765622946709608542?= Use a cpumask instead of a char *, reducing memory footprint and code. No functional change, and in preparation for auto house-keeping. Cc: Steven Rostedt Cc: Daniel Bristot de Oliveira Cc: Masami Hiramatsu Cc: Jonathan Corbet Signed-off-by: Daniel Bristot de Oliveira --- tools/tracing/rtla/src/osnoise_hist.c | 18 ++++---- tools/tracing/rtla/src/osnoise_top.c | 6 +-- tools/tracing/rtla/src/timerlat_hist.c | 18 ++++---- tools/tracing/rtla/src/timerlat_top.c | 6 +-- tools/tracing/rtla/src/utils.c | 63 -------------------------- 5 files changed, 24 insertions(+), 87 deletions(-) diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c index d2b68177ffac..b616a72d5c0a 100644 --- a/tools/tracing/rtla/src/osnoise_hist.c +++ b/tools/tracing/rtla/src/osnoise_hist.c @@ -19,7 +19,7 @@ struct osnoise_hist_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -274,7 +274,7 @@ static void osnoise_hist_header(struct osnoise_tool *tool) trace_seq_printf(s, "Index"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -305,7 +305,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "count:"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -319,7 +319,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "min: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -334,7 +334,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "avg: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -352,7 +352,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "max: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -387,7 +387,7 @@ osnoise_print_stats(struct osnoise_hist_params *params, struct osnoise_tool *too bucket * data->bucket_size); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -411,7 +411,7 @@ osnoise_print_stats(struct osnoise_hist_params *params, struct osnoise_tool *too trace_seq_printf(trace->seq, "over: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -559,7 +559,7 @@ static struct osnoise_hist_params osnoise_hist_usage("Bucket size needs to be > 0 and <= 1000000\n"); break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) osnoise_hist_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c index fcf6c14ce1bc..0e2f3b216d34 100644 --- a/tools/tracing/rtla/src/osnoise_top.c +++ b/tools/tracing/rtla/src/osnoise_top.c @@ -26,7 +26,7 @@ enum osnoise_mode { */ struct osnoise_top_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -263,7 +263,7 @@ osnoise_print_stats(struct osnoise_top_params *params, struct osnoise_tool *top) osnoise_top_header(top); for (i = 0; i < nr_cpus; i++) { - if (params->cpus && !params->monitored_cpus[i]) + if (params->cpus && !CPU_ISSET(i, ¶ms->monitored_cpus)) continue; osnoise_top_print(top, i); } @@ -397,7 +397,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv) break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) osnoise_top_usage(params, "\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index d48c05d238f9..00287e96f22e 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -19,7 +19,7 @@ struct timerlat_hist_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -227,7 +227,7 @@ static void timerlat_hist_header(struct osnoise_tool *tool) trace_seq_printf(s, "Index"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -263,7 +263,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "count:"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -283,7 +283,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "min: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -303,7 +303,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "avg: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -331,7 +331,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "max: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -371,7 +371,7 @@ timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *t bucket * data->bucket_size); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -405,7 +405,7 @@ timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *t trace_seq_printf(trace->seq, "over: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -565,7 +565,7 @@ static struct timerlat_hist_params break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) timerlat_hist_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index 5395d1c5921e..920f2f6ef842 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -21,7 +21,7 @@ struct timerlat_top_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -271,7 +271,7 @@ timerlat_print_stats(struct timerlat_top_params *params, struct osnoise_tool *to timerlat_top_header(top); for (i = 0; i < nr_cpus; i++) { - if (params->cpus && !params->monitored_cpus[i]) + if (params->cpus && !CPU_ISSET(i, ¶ms->monitored_cpus)) continue; timerlat_top_print(top, i); } @@ -422,7 +422,7 @@ static struct timerlat_top_params params->aa_only = 1; break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) timerlat_top_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/utils.c b/tools/tracing/rtla/src/utils.c index ee6fab09acae..8f9ad8f01e0f 100644 --- a/tools/tracing/rtla/src/utils.c +++ b/tools/tracing/rtla/src/utils.c @@ -88,69 +88,6 @@ void get_duration(time_t start_time, char *output, int output_size) tm_info->tm_sec); } -/* - * parse_cpu_list - parse a cpu_list filling a char vector with cpus set - * - * Receives a cpu list, like 1-3,5 (cpus 1, 2, 3, 5), and then set the char - * in the monitored_cpus. - * - * XXX: convert to a bitmask. - */ -int parse_cpu_list(char *cpu_list, char **monitored_cpus) -{ - char *mon_cpus; - const char *p; - int end_cpu; - int nr_cpus; - int cpu; - int i; - - nr_cpus = sysconf(_SC_NPROCESSORS_CONF); - - mon_cpus = calloc(nr_cpus, sizeof(char)); - if (!mon_cpus) - goto err; - - for (p = cpu_list; *p; ) { - cpu = atoi(p); - if (cpu < 0 || (!cpu && *p != '0') || cpu >= nr_cpus) - goto err; - - while (isdigit(*p)) - p++; - if (*p == '-') { - p++; - end_cpu = atoi(p); - if (end_cpu < cpu || (!end_cpu && *p != '0') || end_cpu >= nr_cpus) - goto err; - while (isdigit(*p)) - p++; - } else - end_cpu = cpu; - - if (cpu == end_cpu) { - debug_msg("cpu_list: adding cpu %d\n", cpu); - mon_cpus[cpu] = 1; - } else { - for (i = cpu; i <= end_cpu; i++) { - debug_msg("cpu_list: adding cpu %d\n", i); - mon_cpus[i] = 1; - } - } - - if (*p == ',') - p++; - } - - *monitored_cpus = mon_cpus; - - return 0; - -err: - debug_msg("Error parsing the cpu list %s", cpu_list); - return 1; -} - /* * parse_cpu_set - parse a cpu_list filling cpu_set_t argument *