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=-0.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 34AE6C433DF for ; Fri, 19 Jun 2020 19:48:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C7CA206C3 for ; Fri, 19 Jun 2020 19:48:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="toRtjS2d" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390434AbgFSTsL (ORCPT ); Fri, 19 Jun 2020 15:48:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390375AbgFSTsJ (ORCPT ); Fri, 19 Jun 2020 15:48:09 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE12DC06174E for ; Fri, 19 Jun 2020 12:48:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=JyoFHOysemYMV4OtT/Cn9dnH7GbrwqvQTPVUggspfwk=; b=toRtjS2dGGLS+laiL9DUPLTG5U 4kn3stmgbaPlkbIxHqDIRuugIMeZLwsCZI1WCCrzU7ReoJCWrQ64ST4Q2HH7HKkFVFWKKab/mMTcc uUjRImaYUhSoFkF15DWx14nOlIuf054AjW2DsjyzAejKAuXeO0Jrap4cn1SxMqZc/krJB3TZp9pad BHP2ltr64PgCXxrOVjzoCbOxTT9vAEOR3mf+SX9ngHVZBmomQ6I0mpb3M6gtGpnmL0rkH1wSxHWqx Nqk6IOo8Z819g1rN/2x9t+KbdQx4v5fmvKIMFKlsTQ2GvqkAbkjH6aW7BYY09A5dC4VwNQ7Bgw/jM MI99CQnQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jmMzP-0005Yk-WC; Fri, 19 Jun 2020 19:47:52 +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 060B03003E5; Fri, 19 Jun 2020 21:47:50 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E135F2C36DD88; Fri, 19 Jun 2020 21:47:49 +0200 (CEST) Date: Fri, 19 Jun 2020 21:47:49 +0200 From: Peter Zijlstra To: Valentin Schneider Cc: Qais Yousef , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Patrick Bellasi , Chris Redpath , Lukasz Luba , linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] sched/uclamp: Protect uclamp fast path code with static key Message-ID: <20200619194749.GK576888@hirez.programming.kicks-ass.net> References: <20200618195525.7889-1-qais.yousef@arm.com> <20200618195525.7889-3-qais.yousef@arm.com> <20200619125148.y4cq3hwllgozbutq@e107158-lin.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 19, 2020 at 02:25:20PM +0100, Valentin Schneider wrote: > > On 19/06/20 13:51, Qais Yousef wrote: > > On 06/19/20 11:36, Valentin Schneider wrote: > >> > >> On 18/06/20 20:55, Qais Yousef wrote: > >> > There is a report that when uclamp is enabled, a netperf UDP test > >> > regresses compared to a kernel compiled without uclamp. > >> > > >> > https://lore.kernel.org/lkml/20200529100806.GA3070@suse.de/ > >> > > >> > >> ISTR the perennial form for those is: https://lkml.kernel.org/r/ > > > > The link is correct permalinnk from lore and contains the message-id as Peter > > likes and he has accepted this form before. > > > > I think the objections I remember were on using lkml.org rather than > lkml.kernel.org. Sorry! :-) Yeah, lkml.org is bad. That said, I prefer the lkml.kernel.org/r/ variant over lore.kernel.org/lkml/ in part because it existed first and I'm lazy, in part because it's shorter and in part because lkml.kernel.org/r/ is an explicit redirect and lore is 'just' an archive it can redirect to (although admittedly, it looks rather unlikely lore is going to die). I'll not make a big point of it though and will in all likelyhood accept lore links. The important point is that it has the MessageID in.