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Sun, 28 Jan 2018 18:15:51 -0500 Received: from mail-by2nam01on0099.outbound.protection.outlook.com ([104.47.34.99]:35296 "EHLO NAM01-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751547AbeA1W0P (ORCPT ); Sun, 28 Jan 2018 17:26:15 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Thomas Richter , Martin Schwidefsky , Arnaldo Carvalho de Melo , "Sasha Levin" Subject: [PATCH AUTOSEL for 4.14 017/100] perf test: Fix test 21 for s390x Thread-Topic: [PATCH AUTOSEL for 4.14 017/100] perf test: Fix test 21 for s390x Thread-Index: AQHTmIb+ZiFrEslIXkuU6afA84qxnQ== Date: Sun, 28 Jan 2018 22:26:08 +0000 Message-ID: <20180128222547.7398-17-alexander.levin@microsoft.com> References: <20180128222547.7398-1-alexander.levin@microsoft.com> In-Reply-To: <20180128222547.7398-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MW2PR2101MB1004;7:Zi2D1h8pGTdehiK5ZVL+XrzOh2sPOJeDvt1MET7avt4UidVauTZIwSGhmeckhZBDUNDPAwKTrkMQFAbDmJbdJMGFll43lzpGIc7Es2sFrj/KsCaHRrewZBC91TkjZlj979xU7Caa/FuH5Q9jnNv2xFFT2sKnXVvxlPq3tdQBX7Ott6Z51nG7nDLDEu74TBmyjTN9wFAZOx9aYL1EeSd5LAKs8ctHRmv7Lyc1OdCZMc6HpFS2nknyRLVXob5puP3a x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 4982d3aa-da88-487b-c095-08d5669e2241 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(48565401081)(5600026)(4604075)(3008032)(2017052603307)(7193020);SRVR:MW2PR2101MB1004; 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x-microsoft-antispam-message-info: bUlLKhJeFmiQ5e2xxQNGg55++otkUL3NKnT5U7GClDPI5qDFj5AHvfO+Nm/AKZy/4ZLYUEXYTV7D2HfMoZ6Juw== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4982d3aa-da88-487b-c095-08d5669e2241 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jan 2018 22:26:08.5627 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR2101MB1004 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Thomas Richter [ Upstream commit 996548499df61babae5306544c7daf5fd39db31c ] 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 Signed-off-by: Sasha Levin --- 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 bc4a7344e274..89c8e1604ca7 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, in= t subtest __maybe_unused =20 evsel =3D perf_evlist__first(evlist); evsel->attr.task =3D 1; +#ifdef __s390x__ + evsel->attr.sample_freq =3D 1000000; +#else evsel->attr.sample_freq =3D 1; +#endif evsel->attr.inherit =3D 0; evsel->attr.watermark =3D 0; evsel->attr.wakeup_events =3D 1; --=20 2.11.0