From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C9106CAC583 for ; Tue, 9 Sep 2025 15:43:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=nUQu+dEvVVUIweExh2U8YzklUrRzlC5vfiONcHH1kqU=; b=LjY6CCVZI5C3HybedY4ZMvjrx7 x+Z8oHFypkWq/xX8HNoJKiUh5zRuyZAETcJ0OFYOHbqc0ayMqCVr3LV742WFonvV3gdW0sCZfM/qf W25NGMd0M3XHL71LWOYVUoI6Pm3QXFgsGu+FgEvXUmyFBmcIRpEp48qS2EubX/AVoKVnkhM30TfzU GjejKMi1sw6/wYpk9jcuhlBoiJzvwFcQ/jXua28LiQBGWR1hubFRDJ9Ae97BHCKtbOVrCMRNXNU6+ GWrpkKUgs8DIBo+3jxHH1m5eM2LOx/jnMq8HntrqZ7P5pmFUscqI6FkMFt9al9bnHAX+jfvZ7VBSK 2+1xWWeg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uw0Uo-00000008D8y-1foU; Tue, 09 Sep 2025 15:43:02 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uvvMO-00000006Ibj-1oyX for linux-arm-kernel@lists.infradead.org; Tue, 09 Sep 2025 10:14:02 +0000 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 11D11113E; Tue, 9 Sep 2025 03:13:51 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 101DC3F66E; Tue, 9 Sep 2025 03:13:59 -0700 (PDT) Date: Tue, 9 Sep 2025 11:13:57 +0100 From: Leo Yan To: James Clark Cc: John Garry , Will Deacon , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , George Wort , Graham Woodward , Ben Gainey , Michael Williams , linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] perf arm-spe: Improve --itrace options Message-ID: <20250909101357.GB12516@e132581.arm.com> References: <20250908-james-perf-spe-period-v1-0-7ccd805af461@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250908-james-perf-spe-period-v1-0-7ccd805af461@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250909_031400_732659_8A19D2F7 X-CRM114-Status: GOOD ( 17.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Sep 08, 2025 at 01:10:17PM +0100, James Clark wrote: > Most people also want all the SPE samples (instructions group), not just > the flagged samples that are put into the various memory groups. These > should have been shown by default but weren't because the default > interval type wasn't supported. > > Also when looking at this, it appears that the downsampling was behaving > in a way that would discard samples from one group but not another. > Improve that and the warning messages. > > I don't want to put fixes tags on these because it's only changing the > defaults and the behavior, but I don't think the previous behavior was > incorrect necessarily, just copied from tracing techs but not ideal for > SPE. > > Signed-off-by: James Clark I ran the commands below, and the results are good for me. ./perf report ./perf report --itrace=i100i ./perf report --itrace=i100iM ./perf report --itrace=i100ib ./perf report --itrace=i100ibM Tested-by: Leo Yan