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=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 9CB1CC43381 for ; Wed, 17 Mar 2021 16:40:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5569F64F80 for ; Wed, 17 Mar 2021 16:40:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232109AbhCQQjb (ORCPT ); Wed, 17 Mar 2021 12:39:31 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:44888 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232008AbhCQQi6 (ORCPT ); Wed, 17 Mar 2021 12:38:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615999137; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7BFXuz+V1IZqHA0Ul5BuH98TEHuJmu/wAVpUaxScltU=; b=flx6me3+8RqoVee1VCI5AwOzl/+++r6G2YAlCbo9WiEBS+mw94lXHHUSGnMfcEYzzSM9FH NUn4MFULMKTtn94yvpJgYXaWTIUyUPUMpqo6ktbUAj2dbPV50VAjoG7jzid46LbMb7VFH5 cqHMwQYLmvbKkm6+UXrdL8rQp33Ewks= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-380-b_c398UsOq2LX9gP5uCXUQ-1; Wed, 17 Mar 2021 12:38:54 -0400 X-MC-Unique: b_c398UsOq2LX9gP5uCXUQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 49D94190A7A2; Wed, 17 Mar 2021 16:38:52 +0000 (UTC) Received: from carbon (unknown [10.36.110.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id D160B19C45; Wed, 17 Mar 2021 16:38:45 +0000 (UTC) Date: Wed, 17 Mar 2021 17:38:44 +0100 From: Jesper Dangaard Brouer To: Alexander Lobakin , Mel Gorman Cc: Andrew Morton , Chuck Lever , Christoph Hellwig , Alexander Duyck , Matthew Wilcox , LKML , Linux-Net , Linux-MM , Linux-NFS , brouer@redhat.com Subject: Re: [PATCH 0/7 v4] Introduce a bulk order-0 page allocator with two in-tree users Message-ID: <20210317173844.6b10f879@carbon> In-Reply-To: <20210317163055.800210-1-alobakin@pm.me> References: <20210312154331.32229-1-mgorman@techsingularity.net> <20210317163055.800210-1-alobakin@pm.me> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 the > > following git tree > > > > git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-rebase-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? > 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 affect > > 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