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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9452BC433FE for ; Thu, 10 Dec 2020 14:26:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48DC123D22 for ; Thu, 10 Dec 2020 14:26:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390033AbgLJO0T (ORCPT ); Thu, 10 Dec 2020 09:26:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730742AbgLJO0T (ORCPT ); Thu, 10 Dec 2020 09:26:19 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF396C0613CF for ; Thu, 10 Dec 2020 06:25:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=zAdSc9CCJ97ovr3hMYt96581NCmMZNYJU/oAeSfKb+0=; b=Cy2/EfP1QNjdDQTl5UFS1vbpIb oSJaYYfSC7DnAVQTUJi0ImK4X9VLl46JG2quL6Ldytl7KKOeLDRjZd83Qvlxut4KTZPhU+7C7cl8t ffq3Hf4OMXj9Yf1ZQeZwwdPhS+uqNbvOTUUe9pCbOZzIJ4AMdAk4lgnuu60VvrXKRWyuNmGocd2L0 5p9Ru4L2p9rWW31TRxzLnXgQzNISnPByaL2jUzpH2AOju2IMx5z/ymEuL2eerNgKXL+x7VK6IxsEU +IhVZqYTgux5luGCqlfCcKFJtXkjZIn2k8Ffdq35297nskNy3sley6snqVnBlTQd2LIq64v6AaKJb wdfGjirQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1knMsh-0002B8-Ay; Thu, 10 Dec 2020 14:25:20 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 13BE03059C6; Thu, 10 Dec 2020 15:25:16 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id EF405209B20D9; Thu, 10 Dec 2020 15:25:15 +0100 (CET) Date: Thu, 10 Dec 2020 15:25:15 +0100 From: Peter Zijlstra To: "Liang, Kan" Cc: Namhyung Kim , Ingo Molnar , linux-kernel , Stephane Eranian , Ian Rogers , Gabriel Marin , Arnaldo Carvalho de Melo , Jiri Olsa , Andi Kleen , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Subject: Re: [PATCH V2 3/3] perf: Optimize sched_task() in a context switch Message-ID: <20201210142515.GR2414@hirez.programming.kicks-ass.net> References: <20201130193842.10569-1-kan.liang@linux.intel.com> <20201130193842.10569-3-kan.liang@linux.intel.com> <20201201172903.GT3040@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 10, 2020 at 08:52:55AM -0500, Liang, Kan wrote: > > > On 12/10/2020 2:13 AM, Namhyung Kim wrote: > > Hi Peter and Kan, > > > > How can we move this forward? > > Hi Namhyung, > > Thanks for the test. The changes look good to me. > > Hi Peter, > > Should we resend the patch set for further review? I've not yet seen a coherent replacement of #3, what I send was just a PoC.