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Fri, 3 Apr 2026 01:27:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A20AC2BCAF; Fri, 3 Apr 2026 01:27:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775179668; bh=H3J9EZr3tvvevdBAgqVrRb4AziVG1y905B7abbKP/HM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=J+3qCKwA0hQ54jmAI7omw55knguLR6cX010JRKDRMcNtrlGQ3CT3uJXcXf7qh3n9w 6QXdS6RqEH91dJYN3vrmMylJ+RK8308zzRoIZxv7durYNzXPLLOZMya6QGXqC9Soff 1QrsJn1MXWNN6vCVkGujarq1nWm66AClyPIo+zoZY16ncGWtVjf9nUtaII4AQW2Yfa FXzucd1itI57Xg1vCA/hsnqVhcFQFCFnJw+ev8FvbjOjaW+drY/KQ+FGwW+wWPUUjA FMej6obO34XfbJ0somonTlM/mmBOPUEpdJ7kQ3SUeI+XRzSjYwQECY2lSL98zo6aid xRz/qt0JQcKcw== Date: Thu, 2 Apr 2026 18:27:46 -0700 From: Namhyung Kim To: Athira Rajeev Cc: Ian Rogers , Venkat , Thomas Falcon , acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, vmolnaro@redhat.com, mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com, linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, hbathini@linux.vnet.ibm.com, Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, Shivani.Nittor@ibm.com Subject: Re: [PATCH] tools/perf/test: Check for perf stat return code in perf all PMU test Message-ID: References: <20260315105751.86835-1-atrajeev@linux.ibm.com> <7B7E5C6C-D15A-4B79-925B-B5F3EDD84774@linux.ibm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Apr 02, 2026 at 09:15:54PM +0530, Athira Rajeev wrote: > If the addition of “-a” can cause regression ( like intel one if its not suppose to be run system wide ), > how about adding a case like this: > - Look for "enable system wide with '-a’ “ in the error logs > - If logs matches this message and if user is root, attempt with -a next. > - With “-a”, If the logs has "Operation not supported” , test can continue to next event. Sounds good, you can check perf_event_paranoid as well as root. Then you don't need to check the result of "-a" for -EOPNOTSUP. Thanks, Namhyung