From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 76CB947DD55; Wed, 3 Jun 2026 14:11:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780495862; cv=none; b=pyXn07+ohGT2LpfCMlaQ+djwFks4SSchYB78wxyPNZ70QNvWRlgYZ2EAsGn9ugeqR1HtBSvJ+Nwf+/3E40L8GD0Aw6mKMh7/2izKYV9Hbv6+zc/6w56qwV6VRJPgv2xepbxvNfRcN/FPn1qcrvPD+M/ZUi97kttsIXLOuSVpMUg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780495862; c=relaxed/simple; bh=HFtynj+BbYl9EaWNCP8jiRd+6Ij4Y8cJoB9KXD8A8jI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=s90PSgIm4KzedCqphWgfYOqhLweQ/wjGcxiDIdZC5iNFspXt8V/zyawjtdQ1uYHDS0f0rQR8fTPdTdUOSuZcXfgCIAriZG/33PEuO/l1jQ4tOVvYfZR2j1rWx6ZLQkL0TrF+g0lWii7LR+zF5LdksPBzxdbeid7pS3axAEn3jsw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=cmFdbF2w; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="cmFdbF2w" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 68B881477; Wed, 3 Jun 2026 07:10:54 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E4F983F632; Wed, 3 Jun 2026 07:10:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1780495859; bh=HFtynj+BbYl9EaWNCP8jiRd+6Ij4Y8cJoB9KXD8A8jI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cmFdbF2woqL+6KIgmrbRN9g/gumoD2awg5aZFzy4iLEBE7Sh3DraP4CAqOlPAffvu nL//cEUHjdJFh+QpzTZM+1AvfRYGWzH/7glD8B35/69QFKI5Tjt571U/oys2F1pVtw VeKcU8KSOIIaEu+1ZU7E7TJqVvqqGPP8bo0pnuTE= Date: Wed, 3 Jun 2026 15:10:56 +0100 From: Leo Yan To: James Clark Cc: Suzuki K Poulose , Mike Leach , Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Ian Rogers , Amir Ayupov , Jonathan Corbet , Shuah Khan , Paschalis Mpeis , coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , linux-doc@vger.kernel.org Subject: Re: [PATCH v2 07/18] perf test cs-etm: Remove asm_pure_loop test Message-ID: <20260603141056.GW101133@e132581.arm.com> References: <20260602-james-cs-context-tracking-fix-v2-0-85b5ce6f55c6@linaro.org> <20260602-james-cs-context-tracking-fix-v2-7-85b5ce6f55c6@linaro.org> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260602-james-cs-context-tracking-fix-v2-7-85b5ce6f55c6@linaro.org> On Tue, Jun 02, 2026 at 03:26:49PM +0100, James Clark wrote: > It's not obvious what this test is for so remove it. It's not a stress > test because it doesn't output lots of data and it's not a functional > test because it only looks for raw trace output. It seems to imply that > a program written in assembly influences whether trace would be > generated by the CPU or not, but the CPU doesn't know what language the > program is written in. > > We already have lots of Coresight tests that test the full pipeline > including decoding, and in many more modes of operation than this one, > so if no trace was collected they will already fail leaving this one > redundant. > > Signed-off-by: James Clark Reviewed-by: Leo Yan