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=-0.9 required=3.0 tests=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 EAC4DC433DF for ; Fri, 5 Jun 2020 22:30:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E2C3206F0 for ; Fri, 5 Jun 2020 22:30:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=anarazel.de header.i=@anarazel.de header.b="IptiNzzT"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="a8TzSgmf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728013AbgFEWas (ORCPT ); Fri, 5 Jun 2020 18:30:48 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:60427 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728157AbgFEWar (ORCPT ); Fri, 5 Jun 2020 18:30:47 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 8DEA85C01DF; Fri, 5 Jun 2020 18:30:46 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Fri, 05 Jun 2020 18:30:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anarazel.de; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm1; bh=JQ0T9QXE+j7q+0Zzk3VcIyBO3AA dNqka5dcc5FHLBIU=; b=IptiNzzTDPqny+GbPDBRgd/1jA9JZWGKkwYtx5wDGF6 n6URXZXMO+AwI9yCCdg1BAb0Fm9RP2XMt6Re0Ang4XKlX5t/OW3u74KyEhvAx1A1 hVRJ8Oct8yUFAl8ikcZrSmmdIKRDbw056NyLa3seSIlS+cx7SJzLt9orUweLN8Ut +RH/wHZtS2MdEXkrF+4R184RxIaxICyc3HtgB8ceOUeWljsbdiJycOUd5Ubqluyq ODqkYEDhuxDMjDOW86/U2TM0dXFKOkFkMmshJiHcH39Th8PHgtaPtmKEpp+XxI2k nvRre4SkyYYaD68T4XxARuy4PMEEqvVz8p2BG1VSgCQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=JQ0T9Q XE+j7q+0Zzk3VcIyBO3AAdNqka5dcc5FHLBIU=; b=a8TzSgmfGjfQh4dnwzYtGL ULR/mfNggLyqYomsibxWX7Pids+azAeMGdLg0wRt5eskYpATWNNjF8CXtnehJWzP MlPkX9QWsOpVAEAq6PIjx4QQdytD8BG/03pfn1mrO5r0XM6crbzNiistvw0+TrQ2 j+LopnkZvoTCxBeekdcdKrzGZsPoarb3BTswobgNdeAcZF1ng0q+QOuPCkZ7na5y 1ZbuIEF3/70Ahs68+E+WIb8nzyrruwRVSfy+5jlHK1nYkgpOdiLjqnUFBOjF8ZnZ 1l5etx3lWMz4WO96hdMA+S6k6FlXZ+3QJyMXDYt60H1ptqpDFan4z1/iU+G+IaLg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduhedrudeggedgtdejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepfffhvffukfhfgggtuggjsehttdertddttddvnecuhfhrohhmpeetnhgurhgv shcuhfhrvghunhguuceorghnughrvghssegrnhgrrhgriigvlhdruggvqeenucggtffrrg htthgvrhhnpedukefhkeelueegveetheelffffjeegleeuudelfeefuedtleffueejfffh ueffudenucfkphepieejrdduiedtrddvudejrddvhedtnecuvehluhhsthgvrhfuihiivg eptdenucfrrghrrghmpehmrghilhhfrhhomheprghnughrvghssegrnhgrrhgriigvlhdr uggv X-ME-Proxy: Received: from intern.anarazel.de (c-67-160-217-250.hsd1.ca.comcast.net [67.160.217.250]) by mail.messagingengine.com (Postfix) with ESMTPA id C202D3060F09; Fri, 5 Jun 2020 18:30:45 -0400 (EDT) Date: Fri, 5 Jun 2020 15:30:44 -0700 From: Andres Freund To: Jens Axboe Cc: io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org Subject: Re: [PATCHSET v5 0/12] Add support for async buffered reads Message-ID: <20200605223044.tnh7qsox7zg5uk53@alap3.anarazel.de> References: <20200526195123.29053-1-axboe@kernel.dk> <20200604005916.niy2mejjcsx4sv6t@alap3.anarazel.de> <6eeff14f-befc-a5cc-08da-cb77f811fbdf@kernel.dk> <20200605202028.d57nklzpeolukni7@alap3.anarazel.de> <20200605203613.ogfilu2edcsfpme4@alap3.anarazel.de> <75bfe993-008d-71ce-7637-369f130bd984@kernel.dk> <3539a454-5321-0bdc-b59c-06f60cc64b56@kernel.dk> <34aadc75-5b8a-331e-e149-45e1547b543e@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <34aadc75-5b8a-331e-e149-45e1547b543e@kernel.dk> Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hi, On 2020-06-05 15:21:34 -0600, Jens Axboe wrote: > >> I can reproduce this, and I see what it is. I'll send out a patch soonish. > > > > Thinko, can you try with this on top? > > Sorry that was incomplete, please use this one! That seems to fix it! Yay. Bulk buffered reads somehow don't quite seem to be performing that well though, looking into it. Could be on the pg side too. Greetings, Andres Freund