From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754567Ab3AaK4K (ORCPT ); Thu, 31 Jan 2013 05:56:10 -0500 Received: from terminus.zytor.com ([198.137.202.10]:36247 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753652Ab3AaK4H (ORCPT ); Thu, 31 Jan 2013 05:56:07 -0500 Date: Thu, 31 Jan 2013 02:55:37 -0800 From: tip-bot for Stephane Eranian Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, eranian@google.com, hpa@zytor.com, mingo@kernel.org, peterz@infradead.org, namhyung.kim@lge.com, jolsa@redhat.com, ak@linux.intel.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@kernel.org, hpa@zytor.com, eranian@google.com, linux-kernel@vger.kernel.org, acme@redhat.com, peterz@infradead.org, namhyung.kim@lge.com, jolsa@redhat.com, ak@linux.intel.com, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <1359460064-3060-2-git-send-email-eranian@google.com> References: <1359460064-3060-2-git-send-email-eranian@google.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf evsel: Add prev_raw_count field Git-Commit-ID: c7a79c47c683de6979a3e1a96dc723b0606c07ca X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (terminus.zytor.com [127.0.0.1]); Thu, 31 Jan 2013 02:55:43 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: c7a79c47c683de6979a3e1a96dc723b0606c07ca Gitweb: http://git.kernel.org/tip/c7a79c47c683de6979a3e1a96dc723b0606c07ca Author: Stephane Eranian AuthorDate: Tue, 29 Jan 2013 12:47:43 +0100 Committer: Arnaldo Carvalho de Melo CommitDate: Wed, 30 Jan 2013 10:36:38 -0300 perf evsel: Add prev_raw_count field This field will be used by commands which print counter deltas on regular timer intervals, such as perf stat -I. Signed-off-by: Stephane Eranian Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1359460064-3060-2-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 26 ++++++++++++++++++++++++++ tools/perf/util/evsel.h | 1 + 2 files changed, 27 insertions(+) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index e45332d..dbdcca4 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -659,6 +659,28 @@ void perf_evsel__delete(struct perf_evsel *evsel) free(evsel); } +static inline void compute_deltas(struct perf_evsel *evsel, + int cpu, + struct perf_counts_values *count) +{ + struct perf_counts_values tmp; + + if (!evsel->prev_raw_counts) + return; + + if (cpu == -1) { + tmp = evsel->prev_raw_counts->aggr; + evsel->prev_raw_counts->aggr = *count; + } else { + tmp = evsel->prev_raw_counts->cpu[cpu]; + evsel->prev_raw_counts->cpu[cpu] = *count; + } + + count->val = count->val - tmp.val; + count->ena = count->ena - tmp.ena; + count->run = count->run - tmp.run; +} + int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, int cpu, int thread, bool scale) { @@ -674,6 +696,8 @@ int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, if (readn(FD(evsel, cpu, thread), &count, nv * sizeof(u64)) < 0) return -errno; + compute_deltas(evsel, cpu, &count); + if (scale) { if (count.run == 0) count.val = 0; @@ -712,6 +736,8 @@ int __perf_evsel__read(struct perf_evsel *evsel, } } + compute_deltas(evsel, -1, aggr); + evsel->counts->scaled = 0; if (scale) { if (aggr->run == 0) { diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index c68d1b8..3a4cd60 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -53,6 +53,7 @@ struct perf_evsel { struct xyarray *sample_id; u64 *id; struct perf_counts *counts; + struct perf_counts *prev_raw_counts; int idx; u32 ids; struct hists hists;