From mboxrd@z Thu Jan 1 00:00:00 1970 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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 9065CC17448 for ; Tue, 12 Nov 2019 11:21:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 63E8A2246F for ; Tue, 12 Nov 2019 11:21:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727688AbfKLLV5 (ORCPT ); Tue, 12 Nov 2019 06:21:57 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:33601 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727262AbfKLLSK (ORCPT ); Tue, 12 Nov 2019 06:18:10 -0500 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1iUUBB-0000Ck-LX; Tue, 12 Nov 2019 12:17:49 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id 529DD1C0357; Tue, 12 Nov 2019 12:17:49 +0100 (CET) Date: Tue, 12 Nov 2019 11:17:49 -0000 From: "tip-bot2 for Jin Yao" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: perf/core] perf report: Support --percent-limit for --total-cycles Cc: Jin Yao , Jiri Olsa , Arnaldo Carvalho de Melo , Alexander Shishkin , Andi Kleen , Jin Yao , Kan Liang , Peter Zijlstra , Ingo Molnar , Borislav Petkov , linux-kernel@vger.kernel.org In-Reply-To: <20191107074719.26139-7-yao.jin@linux.intel.com> References: <20191107074719.26139-7-yao.jin@linux.intel.com> MIME-Version: 1.0 Message-ID: <157355746900.29376.16941199530024447077.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the perf/core branch of tip: Commit-ID: 0b49f83657d5fb9a35c592faab7c5ea16e387539 Gitweb: https://git.kernel.org/tip/0b49f83657d5fb9a35c592faab7c5ea16e387539 Author: Jin Yao AuthorDate: Thu, 07 Nov 2019 15:47:18 +08:00 Committer: Arnaldo Carvalho de Melo CommitterDate: Thu, 07 Nov 2019 10:14:48 -03:00 perf report: Support --percent-limit for --total-cycles We have already supported the '--total-cycles' option in previous patch. It's also useful to show entries only above a threshold percent. This patch enables '--percent-limit' for not showing entries under that percent. For example: perf report --total-cycles --stdio --percent-limit 1 # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 2M of event 'cycles' # Event count (approx.): 2753248 # # Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object # ............... .............. ........... .......... ................................................................. .................... # 26.04% 2.8M 0.40% 18 [div.c:42 -> div.c:39] div 15.17% 1.2M 0.16% 7 [random_r.c:357 -> random_r.c:380] libc-2.27.so 5.11% 402.0K 0.04% 2 [div.c:27 -> div.c:28] div 4.87% 381.6K 0.04% 2 [random.c:288 -> random.c:291] libc-2.27.so 4.53% 381.0K 0.04% 2 [div.c:40 -> div.c:40] div 3.85% 300.9K 0.02% 1 [div.c:22 -> div.c:25] div 3.08% 241.1K 0.02% 1 [rand.c:26 -> rand.c:27] libc-2.27.so 3.06% 240.0K 0.02% 1 [random.c:291 -> random.c:291] libc-2.27.so 2.78% 215.7K 0.02% 1 [random.c:298 -> random.c:298] libc-2.27.so 2.52% 198.3K 0.02% 1 [random.c:293 -> random.c:293] libc-2.27.so 2.36% 184.8K 0.02% 1 [rand.c:28 -> rand.c:28] libc-2.27.so 2.33% 180.5K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so 2.28% 176.7K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so 2.20% 168.8K 0.02% 1 [rand@plt+0 -> rand@plt+0] div 1.98% 158.2K 0.02% 1 [random_r.c:388 -> random_r.c:388] libc-2.27.so 1.57% 123.3K 0.02% 1 [div.c:42 -> div.c:44] div 1.44% 116.0K 0.42% 19 [random_r.c:357 -> random_r.c:394] libc-2.27.so Committer testing: >>From second exapmple onwards slightly edited for brevity: # perf report --total-cycles --percent-limit 2 --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 6M of event 'cycles' # Event count (approx.): 6299936 # # Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object # ............... .............. ........... .......... ...................................................................... .................... # 2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux] # # (Tip: Create an archive with symtabs to analyse on other machine: perf archive) # # perf report --total-cycles --percent-limit 1 --stdio # Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object 2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux] 1.75% 1.3M 8.34% 65.5K [memset-vec-unaligned-erms.S:147 -> memset-vec-unaligned-erms.S:151] libc-2.29.so # # perf report --total-cycles --percent-limit 0.7 --stdio # Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object 2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux] 1.75% 1.3M 8.34% 65.5K [memset-vec-unaligned-erms.S:147 -> memset-vec-unaligned-erms.S:151] libc-2.29.so 0.72% 544.5K 0.03% 230 [entry_64.S:657 -> entry_64.S:662] [kernel.vmlinux] # ------------------------------------------- It only shows the entries which 'Sampled Cycles%' > 1%. v7: --- No functional change. Only fix the conflict issue because previous patches are changed. v6: --- No functional change. Only fix the conflict issue because previous patches are changed. v5: --- No functional change. Only fix the conflict issue because previous patches are changed. v4: --- No functional change. Only fix the build issue because previous patches are changed. Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191107074719.26139-7-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-report.c | 2 +- tools/perf/ui/stdio/hist.c | 7 ++++++- tools/perf/util/block-info.c | 10 ++++++++++ tools/perf/util/block-info.h | 2 ++ 4 files changed, 19 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 992b18b..ca41187 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -509,7 +509,7 @@ static int perf_evlist__tty_browse_hists(struct evlist *evlist, if (rep->total_cycles_mode) { report__browse_block_hists(&rep->block_reports[i++].hist, - 0, pos); + rep->min_percent, pos); continue; } diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index 655ef77..132056c 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -15,6 +15,7 @@ #include "../../util/srcline.h" #include "../../util/string2.h" #include "../../util/thread.h" +#include "../../util/block-info.h" #include #include @@ -856,7 +857,11 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, if (h->filtered) continue; - percent = hist_entry__get_percent_limit(h); + if (symbol_conf.report_individual_block) + percent = block_info__total_cycles_percent(h); + else + percent = hist_entry__get_percent_limit(h); + if (percent < min_pcnt) continue; diff --git a/tools/perf/util/block-info.c b/tools/perf/util/block-info.c index ba89175..597d120 100644 --- a/tools/perf/util/block-info.c +++ b/tools/perf/util/block-info.c @@ -454,3 +454,13 @@ int report__browse_block_hists(struct block_hist *bh, float min_percent, return 0; } + +float block_info__total_cycles_percent(struct hist_entry *he) +{ + struct block_info *bi = he->block_info; + + if (bi->total_cycles) + return bi->cycles * 100.0 / bi->total_cycles; + + return 0.0; +} diff --git a/tools/perf/util/block-info.h b/tools/perf/util/block-info.h index 8309297..e4d20bc 100644 --- a/tools/perf/util/block-info.h +++ b/tools/perf/util/block-info.h @@ -73,4 +73,6 @@ struct block_report *block_info__create_report(struct evlist *evlist, int report__browse_block_hists(struct block_hist *bh, float min_percent, struct evsel *evsel); +float block_info__total_cycles_percent(struct hist_entry *he); + #endif /* __PERF_BLOCK_H */