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[23.128.96.37]) by mx.google.com with ESMTPS id kz6-20020a170902f9c600b001c74707965csi10556318plb.638.2023.10.09.23.53.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Oct 2023 23:53:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Xyiq6CUp; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 14AD880658CD; Mon, 9 Oct 2023 23:53:39 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442345AbjJJGxd (ORCPT + 99 others); Tue, 10 Oct 2023 02:53:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442344AbjJJGx3 (ORCPT ); Tue, 10 Oct 2023 02:53:29 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E80E89E for ; Mon, 9 Oct 2023 23:53:27 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4A44C433C7; Tue, 10 Oct 2023 06:53:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1696920807; bh=3Xd5odMKBFBnhMasD1TN2er1RvKIMlpFiAWIcG05Rik=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Xyiq6CUp8XABAFw63iIihqEhIcKBDP9iIDfKNRnLw0bmRew0p3XykDoixzrnGvi0G SEOF25klPe33w9qu7OsWH2SBhEGKfgulUt7d52P3R5/bRAIChbNkVBhU1iIayNQAjW GBQz8hjeansSE6fVnv84zI32eKMt6riqPd+LX2Fscw9z0glptCyEk36I991coZaCSb kCvsRIDD3PCakZPebtj05z47ilhqWZjnV+pAbqRJEPOHsadljzKZ0P19YU6B7YiOlw 0KxMIwqHBKfMvRzd1cd7+BiNSRN2kPfG+J+MT3qesZwUZ9DrtmaMKreGEYR7dMo5vy zxoI3kQ2zPJQA== Message-ID: <604a8dd9-f891-368a-3b6c-3756ee6f4f35@kernel.org> Date: Tue, 10 Oct 2023 08:53:23 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v1] Ftrace: make sched_wakeup can focus on the target process To: Jinyu Tang , rostedt@goodmis.org, mhiramat@kernel.org Cc: ttjjyystupid@163.com, falcon@tinylab.org, wangjiexun@tinylab.org, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org References: <20231009153714.10743-1-tangjinyu@tinylab.org> Content-Language: en-US, pt-BR, it-IT From: Daniel Bristot de Oliveira In-Reply-To: <20231009153714.10743-1-tangjinyu@tinylab.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Mon, 09 Oct 2023 23:53:39 -0700 (PDT) On 10/9/23 17:37, Jinyu Tang wrote: > $ cyclictest --mlockall --smp --priority=99 & rtla timerlat -a will give you an structured analysis of your latency... https://bristot.me/linux-scheduling-latency-debug-and-analysis/ -- Daniel