From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3CCA03BBFD9; Tue, 8 Sep 2026 20:55:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788900920; cv=none; b=n22a+81WdNgnD0Khe3CPjofowsz7HXwJVowN/f/GYLJ71qT93PPopClvee1AaG/a/Nad59kPx2YRruknqggRTOQEATPlfGewKl/Raxp/fj4J8r++lWVar3f4lpSSCim1IPac8PzrHpqQfnVMLShZgGBY0EJPGEv8+lZW+pLmx2A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788900920; c=relaxed/simple; bh=CiVHeu6RIPY8usSJ4PtuYb+4Uq+O/Fi8PdF5aQqViXg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ujhuzweIfRIMISSsqiedHjfIq4Cj0yDHfjzuqAG8lanNJFdcQRCeN7NJ8VFQNi9I3exHzfDbsMKmFfUrFXl5lWNEE4Mg80wnI2BFlEFe9lmGJAjguxMmjz5E+Ci0hBlvbaYGkAjQhhVvAuq63WsgBSb3y9Z9cLQE6uiwhUxVUQ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jdmS1+iW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jdmS1+iW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76EE01F00A3A; Tue, 8 Sep 2026 20:55:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788900917; bh=IX1KW67zfncW7ENG/ph/am57RRkYoh41ri1wVVxuYdI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=jdmS1+iW6xBy/80B7nrzj9Bi8ndZS5RkFKV+r2vMw0eKLge+zvViFN2AuZytaq8e0 Dth7aDnD5aEURjtkUxn645+ZYN2KK+TbHiVscagSwm/I1Vf4J8bXxTHmrKJrLMOyXI +bqNA/oQyyGhUU2G0PfgBSEQo9ZG0br/g9w2lx4v3qW+8tvE95nXvw3HubLSc6a8kJ 90o3tfmNFgUHSraa5vof1WU6vNkpaGnFklzelp/G5COnJ+btcnAhrF/UZuTswcYkQQ UUDn9rTlBFDM5GCK1WQZYuNOKQNi2xA23xxDqYg476q+Wj3OI7d93WnpWPY59D9zVC QBb/MgVylpkPA== Date: Tue, 8 Sep 2026 17:55:13 -0300 From: Arnaldo Carvalho de Melo To: Ian Rogers Cc: Thomas Richter , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-perf-users@vger.kernel.org, namhyung@kernel.org, agordeev@linux.ibm.com, iii@linux.ibm.com, sumanthk@linux.ibm.com, hca@linux.ibm.com, japo@linux.ibm.com, Aaron Tomlin Subject: Re: [PATCH v2] perf test: perf stat tests fails on s390 Message-ID: References: <20260903073554.1300334-1-tmricht@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Sep 03, 2026 at 11:17:01AM -0700, Ian Rogers wrote: > On Thu, Sep 3, 2026 at 12:36 AM Thomas Richter wrote: > > > > The test case 'perf stat tests' fails on s390 z/VM machines. The > > root cause is the unsupported CPU measurement facility on z/VM. > > Therefore the events cycles and instructions do not exist and > > are unsupported. This cause the subtest > > Hide zero events stat test > > to fail. > > > > Output before: > > # perf test 116 > > 116: perf stat tests : FAILED! > > > > === Test Summary === > > Passed main tests : 0 > > Passed subtests : 0 > > Skipped tests : 0 > > Failed tests : 1 > > List of failed tests: > > 116: perf stat tests > > # > > > > Output after: > > # ./perf test 116 > > 116: perf stat tests : Ok > > > > === Test Summary === > > Passed main tests : 1 > > Passed subtests : 0 > > Skipped tests : 0 > > Failed tests : 0 > > # > > > > Fixes: 64724095a33f ("perf stat: Add --hide-zero-events option to suppress zero-count events") > > Cc: Aaron Tomlin > > Cc: Ian Rogers > > Cc: Namhyung Kim > > Signed-off-by: Thomas Richter > > Reviewed-by: Aaron Tomlin > > Reviewed-by: Ian Rogers Thanks, applied to perf-tools-next, for v7.4. - Arnaldo