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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 443C5CA9EC0 for ; Mon, 28 Oct 2019 21:21:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0E8BE21479 for ; Mon, 28 Oct 2019 21:21:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="mdqUvevv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729732AbfJ1VVR (ORCPT ); Mon, 28 Oct 2019 17:21:17 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:32800 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729265AbfJ1VVR (ORCPT ); Mon, 28 Oct 2019 17:21:17 -0400 Received: by mail-pf1-f194.google.com with SMTP id c184so7826364pfb.0 for ; Mon, 28 Oct 2019 14:21:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=6Mw7GL5lBYXyFZbiWmVYNAyXtWbL7t7BFptE67UtrXA=; b=mdqUvevvfBLxrYNr2yNzMM8uR4yvZhS6590jFY8aR9m7NDeA/LtEEEwmO1M4odTmsi W+aePD5McG+4Cqy/4v8UNKWctp2JtlU13WkRxvUvx8YbAz4a8lykcpq/5vUT7WMlM14H WgZRxrLZJ1myiEmk/ciNTZk+FCIDZN3IcTqvbi9kze3pgPE26FdtsY6FuGDBWW9w+/7X 9a1oWVzJdYHI0ax8WBwnhg8kuuDc1HVMoHlxav6Nnf2htd6oEOk/hIER3WpanWCyrVuE d0CQPRdngHjxasD35maEqTnJOunz7wjUqMs0JxNR7EJvFjXv3V1awSiqMvW6KWLC4O/+ 1wrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=6Mw7GL5lBYXyFZbiWmVYNAyXtWbL7t7BFptE67UtrXA=; b=aEFvg00FaOj3ZjxgSl3AH7xQbMMBmt7rdHoOFAU8oDrvmA8Co5ajcOzzDfVZBTjk0q bOVWNdQ24NkyENrcoS5sLwc80ST08hYFw4RaIxs00WC00TNxdZOuCCDzbGrPpE0Kljhi USrnKilv8UKo2uz3kiNfZezA3rjnKqdKJJrUzlyaBtiwwbqwBToNehzhF63VeXiNNg+D DcbUR8GPSAwaktl+BapXqTh7KNZCoUxtOvYHYem/utRdpici/dyGlHFUIhhrCqUpfi+/ HSDudfSsiaP4n614aoZyrG5W73+133A4SifdhN0Cxb/tQt1/92shzwiWrFHKPKW3NzJH b1CA== X-Gm-Message-State: APjAAAWM5Ow/in10yqmyKItBsj3IxDAgNAYdqX136xEpERRZBO+m7As4 LpeOOmtgr+BhGwnCgY3ULocLdA== X-Google-Smtp-Source: APXvYqyPoIlnOJZJqEOsM4sNGwVvOKDEjCPDkaCDLLtoUlAQ7AfHS8suRZQky5AUcroiTC15cF1TJQ== X-Received: by 2002:a17:90a:a886:: with SMTP id h6mr1616033pjq.55.1572297674717; Mon, 28 Oct 2019 14:21:14 -0700 (PDT) Received: from [192.168.1.188] ([66.219.217.79]) by smtp.gmail.com with ESMTPSA id 21sm4071230pfa.170.2019.10.28.14.21.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 28 Oct 2019 14:21:13 -0700 (PDT) Subject: Re: [PATCH 1/2] io-wq: small threadpool implementation for io_uring To: Peter Zijlstra Cc: linux-block@vger.kernel.org, mingo@kernel.org References: <20191025172251.12830-1-axboe@kernel.dk> <20191025172251.12830-2-axboe@kernel.dk> <20191028171010.GH4114@hirez.programming.kicks-ass.net> From: Jens Axboe Message-ID: <39c0e199-3229-d500-1ab7-d69c7f2b4d60@kernel.dk> Date: Mon, 28 Oct 2019 15:21:12 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191028171010.GH4114@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 10/28/19 11:10 AM, Peter Zijlstra wrote: > On Fri, Oct 25, 2019 at 11:22:50AM -0600, Jens Axboe wrote: > >> include/linux/sched.h | 1 + >> kernel/sched/core.c | 16 +- > > This all seems pretty harmless, it makes the wq paths wee bit slower, > but everything else should be unaffected. > > Acked-by: Peter Zijlstra (Intel) Great, thanks Peter! -- Jens Axboe