From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751393AbaHMFN2 (ORCPT ); Wed, 13 Aug 2014 01:13:28 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44702 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751343AbaHMFN0 (ORCPT ); Wed, 13 Aug 2014 01:13:26 -0400 Date: Tue, 12 Aug 2014 22:13:11 -0700 From: tip-bot for Christian Borntraeger Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, jolsa@kernel.org, borntraeger@de.ibm.com, pbonzini@redhat.com, dsahern@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, acme@redhat.com, jolsa@kernel.org, borntraeger@de.ibm.com, pbonzini@redhat.com, dsahern@gmail.com, tglx@linutronix.de In-Reply-To: <1406805231-10675-2-git-send-email-borntraeger@de.ibm.com> References: <1406805231-10675-2-git-send-email-borntraeger@de.ibm.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf kvm stat: Properly show submicrosecond times Git-Commit-ID: b048a24cc8f29dce1bad564aaeb8680020d3701c 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 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: b048a24cc8f29dce1bad564aaeb8680020d3701c Gitweb: http://git.kernel.org/tip/b048a24cc8f29dce1bad564aaeb8680020d3701c Author: Christian Borntraeger AuthorDate: Thu, 31 Jul 2014 13:13:51 +0200 Committer: Arnaldo Carvalho de Melo CommitDate: Sat, 2 Aug 2014 10:21:11 -0300 perf kvm stat: Properly show submicrosecond times For lots of exits the min time (and sometimes max) is 0 or 1. Lets increase the accurancy similar to what the average field alread does. Signed-off-by: Christian Borntraeger Acked-by: David Ahern Cc: David Ahern Cc: Jiri Olsa Cc: Paolo Bonzini Cc: kvm@vger.kernel.org Link: http://lkml.kernel.org/r/1406805231-10675-2-git-send-email-borntraeger@de.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-kvm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 43367eb..fe92dfd 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -592,8 +592,8 @@ static void print_result(struct perf_kvm_stat *kvm) pr_info("%9s ", "Samples%"); pr_info("%9s ", "Time%"); - pr_info("%10s ", "Min Time"); - pr_info("%10s ", "Max Time"); + pr_info("%11s ", "Min Time"); + pr_info("%11s ", "Max Time"); pr_info("%16s ", "Avg time"); pr_info("\n\n"); @@ -610,8 +610,8 @@ static void print_result(struct perf_kvm_stat *kvm) pr_info("%10llu ", (unsigned long long)ecount); pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); - pr_info("%8" PRIu64 "us ", min / 1000); - pr_info("%8" PRIu64 "us ", max / 1000); + pr_info("%9.2fus ", (double)min / 1e3); + pr_info("%9.2fus ", (double)max / 1e3); pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, kvm_event_rel_stddev(vcpu, event)); pr_info("\n");