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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 5FAD4C433DB for ; Wed, 17 Mar 2021 16:53:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 27F7F64F41 for ; Wed, 17 Mar 2021 16:53:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232558AbhCQQxD (ORCPT ); Wed, 17 Mar 2021 12:53:03 -0400 Received: from mail-40133.protonmail.ch ([185.70.40.133]:29539 "EHLO mail-40133.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232468AbhCQQwf (ORCPT ); Wed, 17 Mar 2021 12:52:35 -0400 Date: Wed, 17 Mar 2021 16:52:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail; t=1615999953; bh=oM4XbW1q5zcLndEfkaigVcrh9QJicN69T4/u/Yrv6U8=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=iteX186mLmhS6elYvml44AmeEWYOGvi5Jt8tM+3z7X2+504fS+dlDW4xiCA7pzve7 Bcn8gJ/jImG0946q5irYxwYXsSR7r3fbV0Oi/r1KC/hsOpqKXxMJiH9NZZHjBe1y4s n7ALz8cN/JOftpv3ZA4kwm6N2C0gtxwqor1UC6tlrs/cV6oH4ltkClE0TgTFfW3JSA inBauo0r8vPB010z8K1rMhl9JTwg8riSkFHpg7zoD+EqTFOafEGNImufGdqEdNq8Qq OMCw1NM3dRhDJq1ZeYYlsO/8QJ3BNbPwo8Y3EjID6uLABrh7/B0fdb9Oywfa7C+gtQ EBJiaSTzP+MoA== To: Jesper Dangaard Brouer From: Alexander Lobakin Cc: Alexander Lobakin , Mel Gorman , Andrew Morton , Chuck Lever , Christoph Hellwig , Alexander Duyck , Matthew Wilcox , LKML , Linux-Net , Linux-MM , Linux-NFS Reply-To: Alexander Lobakin Subject: Re: [PATCH 0/7 v4] Introduce a bulk order-0 page allocator with two in-tree users Message-ID: <20210317165220.808975-1-alobakin@pm.me> In-Reply-To: <20210317173844.6b10f879@carbon> References: <20210312154331.32229-1-mgorman@techsingularity.net> <20210317163055.800210-1-alobakin@pm.me> <20210317173844.6b10f879@carbon> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jesper Dangaard Brouer Date: Wed, 17 Mar 2021 17:38:44 +0100 > On Wed, 17 Mar 2021 16:31:07 +0000 > Alexander Lobakin wrote: > > > From: Mel Gorman > > Date: Fri, 12 Mar 2021 15:43:24 +0000 > > > > Hi there, > > > > > This series is based on top of Matthew Wilcox's series "Rationalise > > > __alloc_pages wrapper" and does not apply to 5.12-rc2. If you want to > > > test and are not using Andrew's tree as a baseline, I suggest using t= he > > > following git tree > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-r= ebase-v4r2 > > > > I gave this series a go on my setup, it showed a bump of 10 Mbps on > > UDP forwarding, but dropped TCP forwarding by almost 50 Mbps. > > > > (4 core 1.2GHz MIPS32 R2, page size of 16 Kb, Page Pool order-0 > > allocations with MTU of 1508 bytes, linear frames via build_skb(), > > GRO + TSO/USO) > > What NIC driver is this? Ah, forgot to mention. It's a WIP driver, not yet mainlined. The NIC itself is basically on-SoC 1G chip. > > I didn't have time to drill into the code, so for now can't provide > > any additional details. You can request anything you need though and > > I'll try to find a window to collect it. > > > > > Note to Chuck and Jesper -- as this is a cross-subsystem series, you = may > > > want to send the sunrpc and page_pool pre-requisites (patches 4 and 6= ) > > > directly to the subsystem maintainers. While sunrpc is low-risk, I'm > > > vaguely aware that there are other prototype series on netdev that af= fect > > > page_pool. The conflict should be obvious in linux-next. > > -- > Best regards, > Jesper Dangaard Brouer > MSc.CS, Principal Kernel Engineer at Red Hat > LinkedIn: http://www.linkedin.com/in/brouer Al