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 2D7093E2AD7; Wed, 3 Jun 2026 17:17:20 +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=1780507042; cv=none; b=SZG/iw8hlCjNdA9fOqJtxhAAf/edIxZU+gh/cBJTtgIvhZ6gJXIBWd+8SwLKlH53l5TwC6U4BTjAo/EJi8n3HPIkRdFKAi58X8hPerF9JaFpsnDhEtz11egzd6J8dPznSalrfLVjHrV6jRPTE5QiM9ecwN5TFnfFh1HtkNFGvys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780507042; c=relaxed/simple; bh=EJWYmAqAuHUMYPCeqOX+tr2xc0BoMIbtsUzZBmIOxMQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tFvBqo9K5bhSe4cAzWOnkGbl17UcFaMG/+PmwKBywYsbjCinc02A+K39HLPc8UukmHMaoncVYD8kMvye2xFFahBm7o4fAmdY4DFlQXazbf9D+gf2UtOkBw9CPld8E0f37oDIm7S0At4o7QVAeNLo08bOlIuHRh4H97vER3asJns= 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=IjB9EbEE; 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="IjB9EbEE" 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 99D04288E; Wed, 3 Jun 2026 10:17:15 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 208273F632; Wed, 3 Jun 2026 10:17:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1780507040; bh=EJWYmAqAuHUMYPCeqOX+tr2xc0BoMIbtsUzZBmIOxMQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IjB9EbEEtCvBd/ypFuvIG6PuY2upEkS1zh6gEUFDluiNNGRcqvQZauFtpH3kGIdUu +aTNNp/p1u6z/QoTmWQ7mMZa5CpRL+b7wTrwcDnuMkIKMK5vQDoXTte5GHEA3sSPPc uE6LKIzlJr0HKytH5T05NIcfTtOpNnSuIaWQ7Zxs= Date: Wed, 3 Jun 2026 18:17:18 +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 13/18] perf test cs-etm: Speed up basic test Message-ID: <20260603171718.GD101133@e132581.arm.com> References: <20260602-james-cs-context-tracking-fix-v2-0-85b5ce6f55c6@linaro.org> <20260602-james-cs-context-tracking-fix-v2-13-85b5ce6f55c6@linaro.org> Precedence: bulk X-Mailing-List: linux-perf-users@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-v2-13-85b5ce6f55c6@linaro.org> On Tue, Jun 02, 2026 at 03:26:55PM +0100, James Clark wrote: > Like the name says, this should be the most basic test possible. Kernel > recording is slow and already has coverage on the systemwide test. Perf > report output also has coverage elsewhere. 'ls' also produces more trace > than 'true'. > > We only want to test if the combination of recording options works at > all, so fix all of these things to make it as fast as possible. > > Signed-off-by: James Clark Reviewed-by: Leo Yan