From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752273AbaGaLNq (ORCPT ); Thu, 31 Jul 2014 07:13:46 -0400 Received: from e06smtp10.uk.ibm.com ([195.75.94.106]:43079 "EHLO e06smtp10.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751151AbaGaLNg (ORCPT ); Thu, 31 Jul 2014 07:13:36 -0400 From: Christian Borntraeger To: Jiri Olsa Cc: Arnaldo Carvalho de Melo , David Ahern , Paolo Bonzini , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Christian Borntraeger Subject: [PATCH/RFC] KVM: perf/stat: Properly show submicrosecond times Date: Thu, 31 Jul 2014 13:13:51 +0200 Message-Id: <1406805231-10675-2-git-send-email-borntraeger@de.ibm.com> X-Mailer: git-send-email 1.8.4.2 In-Reply-To: <1406805231-10675-1-git-send-email-borntraeger@de.ibm.com> References: <1406805231-10675-1-git-send-email-borntraeger@de.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14073111-4966-0000-0000-000000E500E4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Cc: Paolo Bonzini Cc: Jiri Olsa Cc: David Ahern Cc: Arnaldo Carvalho de Melo Signed-off-by: Christian Borntraeger --- 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"); -- 1.8.4.2