From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753191AbdK2Ggu (ORCPT ); Wed, 29 Nov 2017 01:36:50 -0500 Received: from terminus.zytor.com ([65.50.211.136]:54751 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753121AbdK2Ggs (ORCPT ); Wed, 29 Nov 2017 01:36:48 -0500 Date: Tue, 28 Nov 2017 22:35:36 -0800 From: tip-bot for Thomas Richter Message-ID: Cc: linux-kernel@vger.kernel.org, tmricht@linux.vnet.ibm.com, tglx@linutronix.de, schwidefsky@de.ibm.com, brueckner@linux.vnet.ibm.com, mingo@kernel.org, acme@redhat.com, hpa@zytor.com Reply-To: linux-kernel@vger.kernel.org, tmricht@linux.vnet.ibm.com, brueckner@linux.vnet.ibm.com, mingo@kernel.org, schwidefsky@de.ibm.com, tglx@linutronix.de, acme@redhat.com, hpa@zytor.com To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf test: Fix test 21 for s390x Git-Commit-ID: 996548499df61babae5306544c7daf5fd39db31c 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: 996548499df61babae5306544c7daf5fd39db31c Gitweb: https://git.kernel.org/tip/996548499df61babae5306544c7daf5fd39db31c Author: Thomas Richter AuthorDate: Thu, 23 Nov 2017 12:46:11 +0100 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 28 Nov 2017 14:28:26 -0300 perf test: Fix test 21 for s390x Test case 21 (Number of exit events of a simple workload) fails on s390x. The reason is the invalid sample frequency supplied for this test. On s390x the minimum sample frequency is much higher (see output of /proc/service_levels). Supply a save sample frequency value for s390x to fix this. The value will be adjusted by the s390x CPUMF frequency convertion function to a value well below the sysctl kernel.perf_event_max_sample_rate value. Signed-off-by: Thomas Richter Reviewed-by: Hendrik Brueckner Cc: Martin Schwidefsky LPU-Reference: 20171123114611.93397-1-tmricht@linux.vnet.ibm.com Link: https://lkml.kernel.org/n/tip-1ynblyhi1n81idpido59nt1y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/task-exit.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c index bc4a734..89c8e16 100644 --- a/tools/perf/tests/task-exit.c +++ b/tools/perf/tests/task-exit.c @@ -84,7 +84,11 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused evsel = perf_evlist__first(evlist); evsel->attr.task = 1; +#ifdef __s390x__ + evsel->attr.sample_freq = 1000000; +#else evsel->attr.sample_freq = 1; +#endif evsel->attr.inherit = 0; evsel->attr.watermark = 0; evsel->attr.wakeup_events = 1;