From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751972AbdITHRF (ORCPT ); Wed, 20 Sep 2017 03:17:05 -0400 Received: from mga05.intel.com ([192.55.52.43]:4497 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751554AbdITHRB (ORCPT ); Wed, 20 Sep 2017 03:17:01 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,420,1500966000"; d="scan'208";a="137398294" 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 v1 4/6] perf util: Create function to perform multiple time range checking Date: Wed, 20 Sep 2017 23:12:35 +0800 Message-Id: <1505920357-25561-5-git-send-email-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1505920357-25561-1-git-send-email-yao.jin@linux.intel.com> References: <1505920357-25561-1-git-send-email-yao.jin@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Previous patch supports the multiple time range. For example, select the first and second 10% time slices. perf report --time 10%/1,10%/2 We need a function to check if a timestamp is in the ranges of [0, 10%) and [10%, 20%). This patch implments a new function perf_time__ranges_skip_sample. Signed-off-by: Jin Yao --- tools/perf/util/time-utils.c | 21 +++++++++++++++++++++ tools/perf/util/time-utils.h | 3 +++ 2 files changed, 24 insertions(+) diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c index d46490f..d1f5121 100644 --- a/tools/perf/util/time-utils.c +++ b/tools/perf/util/time-utils.c @@ -297,6 +297,27 @@ bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp) return false; } +bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf, + int num, u64 timestamp) +{ + struct perf_time_interval *ptime; + int i; + + if ((timestamp == 0) || (num == 0)) + return false; + + for (i = 0; i < num; i++) { + ptime = &ptime_buf[i]; + + if ((timestamp >= ptime->start) && + (timestamp < ptime->end)) { + break; + } + } + + return (i == num) ? true : false; +} + int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz) { u64 sec = timestamp / NSEC_PER_SEC; diff --git a/tools/perf/util/time-utils.h b/tools/perf/util/time-utils.h index fd018e2..de279ea 100644 --- a/tools/perf/util/time-utils.h +++ b/tools/perf/util/time-utils.h @@ -17,6 +17,9 @@ int perf_time__percent_parse_str(struct perf_time_interval *ptime_buf, int num, bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp); +bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf, + int num, u64 timestamp); + int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz); int fetch_current_timestamp(char *buf, size_t sz); -- 2.7.4