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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 DC2C7C433E0 for ; Thu, 14 May 2020 05:38:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDE82206BE for ; Thu, 14 May 2020 05:38:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726005AbgENFim (ORCPT ); Thu, 14 May 2020 01:38:42 -0400 Received: from mga03.intel.com ([134.134.136.65]:62468 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725794AbgENFim (ORCPT ); Thu, 14 May 2020 01:38:42 -0400 IronPort-SDR: E9tEzGN1mFNY4PBpbgZHtrdbqz7u8Ln1JV0GZw9kXJtMowWa46GjH1XsfKd6pYfSF8nR1JUyvD uw1KOO1cnWsw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2020 22:38:41 -0700 IronPort-SDR: dvqeWWtSkt5YOZqR2Rd08khtsncRlB5LSf7mdcf0H9o16LDIXYMHuXW4LxQswh7r+u7yUffejh 0EowUYURkDzQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,390,1583222400"; d="scan'208";a="287289049" Received: from kbl-ppc.sh.intel.com ([10.239.159.118]) by fmsmga004.fm.intel.com with ESMTP; 13 May 2020 22:38:38 -0700 From: Jin Yao To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao Subject: [PATCH v5 0/5] perf stat: Support overall statistics for interval mode Date: Thu, 14 May 2020 13:36:33 +0800 Message-Id: <20200514053638.3736-1-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently perf-stat supports to print counts at regular interval (-I), but it's not very easy for user to get the overall statistics. With this patchset, it supports to report the summary at the end of interval output. For example, root@kbl-ppc:~# perf stat -e cycles -I1000 --interval-count 2 # time counts unit events 1.000412064 2,281,114 cycles 2.001383658 2,547,880 cycles Performance counter stats for 'system wide': 4,828,994 cycles 2.002860349 seconds time elapsed root@kbl-ppc:~# perf stat -e cycles,instructions -I1000 --interval-count 2 # time counts unit events 1.000389902 1,536,093 cycles 1.000389902 420,226 instructions # 0.27 insn per cycle 2.001433453 2,213,952 cycles 2.001433453 735,465 instructions # 0.33 insn per cycle Performance counter stats for 'system wide': 3,750,045 cycles 1,155,691 instructions # 0.31 insn per cycle 2.003023361 seconds time elapsed root@kbl-ppc:~# perf stat -M CPI,IPC -I1000 --interval-count 2 # time counts unit events 1.000435121 905,303 inst_retired.any # 2.9 CPI 1.000435121 2,663,333 cycles 1.000435121 914,702 inst_retired.any # 0.3 IPC 1.000435121 2,676,559 cpu_clk_unhalted.thread 2.001615941 1,951,092 inst_retired.any # 1.8 CPI 2.001615941 3,551,357 cycles 2.001615941 1,950,837 inst_retired.any # 0.5 IPC 2.001615941 3,551,044 cpu_clk_unhalted.thread Performance counter stats for 'system wide': 2,856,395 inst_retired.any # 2.2 CPI 6,214,690 cycles 2,865,539 inst_retired.any # 0.5 IPC 6,227,603 cpu_clk_unhalted.thread 2.003403078 seconds time elapsed v5: --- 1. Create new patch "perf stat: Save aggr value to first member of prev_raw_counts". 2. Call perf_evlist__save_aggr_prev_raw_counts to save aggr value to first member of prev_raw_counts for AGGR_GLOBAL. Then next, perf_stat_process_counter can create aggr values from per cpu values. Following patches are impacted in v5: perf stat: Copy counts from prev_raw_counts to evsel->counts perf stat: Save aggr value to first member of prev_raw_counts perf stat: Report summary for interval mode v4: --- 1. Create runtime_stat_reset. 2. Zero the aggr in perf_counts__reset and use it to reset prev_raw_counts. 3. Move affinity setup and read_counter_cpu to a new function read_affinity_counters. It's only called when stat_config.summary is not set. v3: --- 1. 'perf stat: Fix wrong per-thread runtime stat for interval mode' is a new patch which fixes an existing issue found in test. 2. We use the prev_raw_counts for summary counts. Drop the summary_counts in v2. 3. Fix some issues. v2: --- Rebase to perf/core branch Jin Yao (5): perf stat: Fix wrong per-thread runtime stat for interval mode perf counts: Reset prev_raw_counts counts perf stat: Copy counts from prev_raw_counts to evsel->counts perf stat: Save aggr value to first member of prev_raw_counts perf stat: Report summary for interval mode tools/perf/builtin-stat.c | 101 ++++++++++++++++++++++++++------------ tools/perf/util/counts.c | 4 +- tools/perf/util/counts.h | 1 + tools/perf/util/stat.c | 43 +++++++++++++--- tools/perf/util/stat.h | 3 ++ 5 files changed, 113 insertions(+), 39 deletions(-) -- 2.17.1