From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967481AbdIZDCK (ORCPT ); Mon, 25 Sep 2017 23:02:10 -0400 Received: from mga14.intel.com ([192.55.52.115]:20894 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933842AbdIZDCJ (ORCPT ); Mon, 25 Sep 2017 23:02:09 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,438,1500966000"; d="scan'208";a="153305046" 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 v2 0/6] perf report/script: Support percent and multiple range in --time option Date: Tue, 26 Sep 2017 18:57:56 +0800 Message-Id: <1506423482-16894-1-git-send-email-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org v2: --- 1. This patch creates a new header feature type HEADER_SAMPLE_TIME and related ops. Save the first sample time and the last sample time to the feature section in perf file header. 2. Add checking for last element in time range. For example, select the first and second 10% time slices. perf report --time 10%/1,10%/2 Note that now it includes the last element in [10%, 20%] but it doesn't include the last element in [0, 10%). It's to avoid the overlap. Following patches are changed: perf header: Record first sample time and last sample time in perf file header perf record: Get the first sample time and last sample time perf util: Create function to perform multiple time range checking v1: initial post ---------------- Current perf report/script/... have a --time option to limit the time range of output. But it only supports the absolute time. The patch series extend this option to let it support percent of time and support the multiple time ranges. For example: 1. Select the second 10% time slice perf report --time 10%/2 2. Select from 0% to 10% time slice perf report --time 0%-10% It also support the multiple time ranges. 3. Select the first and second 10% time slices perf report --time 10%/1,10%/2 4. Select from 0% to 10% and 30% to 40% slices perf report --time 0%-10%,30%-40% Jin Yao (6): perf header: Record first sample time and last sample time in perf file header perf record: Get the first sample time and last sample time perf util: Create function to parse time percent perf util: Create function to perform multiple time range checking perf report: support time percent and multiple time ranges perf script: support time percent and multiple time ranges tools/perf/Documentation/perf-report.txt | 16 ++ tools/perf/Documentation/perf-script.txt | 16 ++ tools/perf/Documentation/perf.data-file-format.txt | 4 + tools/perf/builtin-record.c | 17 ++ tools/perf/builtin-report.c | 24 ++- tools/perf/builtin-script.c | 21 +- tools/perf/util/evlist.h | 2 + tools/perf/util/header.c | 49 +++++ tools/perf/util/header.h | 1 + tools/perf/util/session.h | 2 + tools/perf/util/time-utils.c | 225 +++++++++++++++++++-- tools/perf/util/time-utils.h | 6 + 12 files changed, 366 insertions(+), 17 deletions(-) -- 2.7.4