Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755345AbaGHSFd (ORCPT ); Tue, 8 Jul 2014 14:05:33 -0400 Received: from forward-corp1e.mail.yandex.net ([77.88.60.199]:52511 "EHLO forward-corp1e.mail.yandex.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755293AbaGHSF3 (ORCPT ); Tue, 8 Jul 2014 14:05:29 -0400 X-Yandex-Uniq: 78a35862-b5cc-4a76-93b4-d93f5edb43a2 Authentication-Results: smtpcorp4.mail.yandex.net; dkim=pass header.i=@yandex-team.ru From: Stanislav Fomichev To: a.p.zijlstra@chello.nl, paulus@samba.org, mingo@redhat.com, acme@kernel.org, dsahern@gmail.com, stfomichev@yandex-team.ru Cc: linux-kernel@vger.kernel.org Subject: [PATCH] perf trace: add pagefault statistics Date: Tue, 8 Jul 2014 22:05:16 +0400 Message-Id: <1404842716-19190-1-git-send-email-stfomichev@yandex-team.ru> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 'perf trace' can show summary of events using -S option. This commit also reports number of major/minor pagefault events in this summary. $ perf trace -s --pf all -- sleep 1 Summary of events: sleep (18604), 275 events, 99.6%, 197 minfaults, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 2 0.000 0.001 0.002 100.00% open 3 0.004 0.005 0.007 21.13% close 3 0.001 0.001 0.001 1.37% fstat 3 0.001 0.002 0.002 10.66% mmap 8 0.002 0.004 0.006 10.69% mprotect 4 0.003 0.005 0.008 24.68% munmap 1 0.005 0.005 0.005 0.00% brk 3 0.001 0.002 0.003 28.08% access 3 0.002 0.003 0.005 24.48% nanosleep 1 1000.747 1000.747 1000.747 0.00% execve 8 0.000 0.033 0.246 91.00% arch_prctl 1 0.001 0.001 0.001 0.00% Signed-off-by: Stanislav Fomichev --- tools/perf/builtin-trace.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index dc7a694b61fe..b94dffc5fa85 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1133,6 +1133,7 @@ struct thread_trace { u64 exit_time; bool entry_pending; unsigned long nr_events; + unsigned long pfmaj, pfmin; char *entry_str; double runtime_ms; struct { @@ -1804,8 +1805,20 @@ static int trace__pgfault(struct trace *trace, u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; struct addr_location al; char map_type = 'd'; + struct thread_trace *ttrace; thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); + ttrace = thread__trace(thread, trace->output); + if (ttrace == NULL) + return -1; + + if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) + ttrace->pfmaj++; + else + ttrace->pfmin++; + + if (trace->summary_only) + return 0; thread__find_addr_location(thread, trace->host, cpumode, MAP__FUNCTION, sample->ip, &al); @@ -2346,6 +2359,10 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv) printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); printed += fprintf(fp, "%lu events, ", ttrace->nr_events); printed += fprintf(fp, "%.1f%%", ratio); + if (ttrace->pfmaj) + printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); + if (ttrace->pfmin) + printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); printed += thread__dump_stats(ttrace, trace, fp); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/