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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 BF65EC43603 for ; Wed, 18 Dec 2019 06:58:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8FC1E2176D for ; Wed, 18 Dec 2019 06:58:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576652319; bh=TTP4MSYPV9HdMlNGNkq5o649dYotCJRLzBCBA7CTh4I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=RlmuUiO/EbFNyR5MpTMux71qYRo3RjlFewftRNKuP0aySnCqFyhR0ka4Vv737udwW N3yj8I1of9pj3Q7XDYs21waHaBvFYLbG7rPvZvK/6IUaLdc9vew5iqEmuRtluVswJ5 /vRbzwy6d4j9pcdGv6L40V2VF47HaapHWouvj+uo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726676AbfLRG6i (ORCPT ); Wed, 18 Dec 2019 01:58:38 -0500 Received: from mail-wm1-f65.google.com ([209.85.128.65]:36320 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725882AbfLRG6i (ORCPT ); Wed, 18 Dec 2019 01:58:38 -0500 Received: by mail-wm1-f65.google.com with SMTP id p17so630382wma.1 for ; Tue, 17 Dec 2019 22:58:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=nD6NYo7+E7+s9UJGfhj8VxQoIuDfE8VeJc6SVPDBZ6Y=; b=VXP53WLV06g/bblATWXCQWNvKrkUxKacX6ujU3Q1lTUbQkE6ERJqINv8Sx/5jcMr3O lz+yeFlKa3AnJK+dVTBkJc+REKkXCt5CjYXyemMyaDPdvFgVObPoh2d0tsjCm+UcNgWh p2VDAL1hUMlVrfm4FsVZ/qBxum+kkMLbGaP2zL3TXlvmQuT6CVyaKj1U655xSbs7VP7W yFHceYQkcMYoxLEAc6B8ssrh1snUaOFL7xVTCLNRrUrjM9GXfq3Df+Krrm3HYm9+vatR xTx0MjCJe92gYJGr6oZcXa3gvADAAENyRZ3r4vpDt2tKO8b3IXSYK3OJk0DSLzkHKyiF IQdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=nD6NYo7+E7+s9UJGfhj8VxQoIuDfE8VeJc6SVPDBZ6Y=; b=RcJp/82K+KC21//h3M6+P3RAFGCQiIFtlg/BopZEwC0dd0GAuN9lNPU3Rf5rIvoIVT YT3fvMwYHeV1q0BLLyQD4qnCd6ozbR4MhjEh9wPSdBwmQ4FN7ex1fjwRCtiChA9lSCBn n43FIf85iR1nuSA7y3pXAo1hxgBtbqxfYUgu4sUg0EQ/q31LghqfSHpKVhv7vBBrjkMd 5eYtdqxT3Cw+LJ6HSz56FZnw/nLmr3uzg2sH2JqlBnQbQT99iTfGhAUIXcra/dWUPvFW zOMQzMtrD0c+a8ErtZRokQEpjIRVy7ngnwxG7rpoVu/gXiXJ0GibW7N/XfK1+A+wdSdJ l4Xw== X-Gm-Message-State: APjAAAV2JFThAHJEKV9yfpcMbCOigjgaJVR/pI6MzmTah8NaI2jj7/Kg 2RIY8G2ERCuUojPJesekA0c= X-Google-Smtp-Source: APXvYqwFtsf7ojOXfagMC9OwAZSEivKbIVph0va9XTBjGiMzu5oXQQ6zB+wvC+6+OLJ4umCdIgU6+g== X-Received: by 2002:a1c:a745:: with SMTP id q66mr1168277wme.167.1576652316510; Tue, 17 Dec 2019 22:58:36 -0800 (PST) Received: from gmail.com (54033286.catv.pool.telekom.hu. [84.3.50.134]) by smtp.gmail.com with ESMTPSA id d16sm1574638wrg.27.2019.12.17.22.58.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Dec 2019 22:58:35 -0800 (PST) Date: Wed, 18 Dec 2019 07:58:33 +0100 From: Ingo Molnar To: Linus Torvalds Cc: Linux Kernel Mailing List , Arnaldo Carvalho de Melo , Jiri Olsa , Peter Zijlstra , Thomas Gleixner , Andrew Morton Subject: Re: [GIT PULL] perf fixes Message-ID: <20191218065833.GA35113@gmail.com> References: <20191217113425.GA78787@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Linus Torvalds wrote: > On Tue, Dec 17, 2019 at 3:34 AM Ingo Molnar wrote: > > > > Note that the large CPU count related fixes go beyond regression fixes - > > but the IPI-flood symptoms are severe enough that I think justifies their > > inclusion. If it's too much we'll redo the branch. > > I'm much less sensitive to the perf _tooling_ changes than I am to > actual kernel code changes. > > Of course, if you start having a history of breaking things during the > rc kernels, that may change, but at least for now, I tend to look at > diffstats and go "oh, this is perf tooling", and not worry too much > about it... Thanks for pulling these in any case! Ingo