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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 3F05CC28CC0 for ; Thu, 30 May 2019 18:13:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 226CD25F37 for ; Thu, 30 May 2019 18:13:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726708AbfE3SNd (ORCPT ); Thu, 30 May 2019 14:13:33 -0400 Received: from mail-qt1-f196.google.com ([209.85.160.196]:46722 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725961AbfE3SNc (ORCPT ); Thu, 30 May 2019 14:13:32 -0400 Received: by mail-qt1-f196.google.com with SMTP id z19so8081856qtz.13 for ; Thu, 30 May 2019 11:13:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=swUKp54FsABaRx/HQxckmg32aK739BKT6ewItuokNDk=; b=b8eCgtO1H4D46inJJ91UlgtdYsJ3SzhiekGfNkAsX0dDoXU4gvj2hPKu+lkP15PtvU 9svm0GOtJg9kYqyiWIiVIzd7lEqsNLllbKC+19iteuCFh+PEmjvJWX62vRc/6i3Un6rS 53WAD2u6GmccXHxBNpDbL4YX82wWtVZcjfrTPycrvFZTj1wKhgYCa8hnOM22Ge0/I+QN RXTZACblLN8s2BUUX84/OBZ+JkKHDbv/4wrg2Yrb66JCVODenIBs8X0bLjMjtYchN6Nj LeQRdnyZoevfwQSKaqHvKRp1tqSG9lyVR7UC8qPJIIMuU1uzFmR6+9z9dbhXHLc7VcCM PfJw== X-Gm-Message-State: APjAAAVaoHMqah6Z0RmLByhHlxTaV/9i614NRNPvmxhWt5XgE2Zjnc0q 8TkoSxIs0cvFcxtfYk9h3migjQ== X-Google-Smtp-Source: APXvYqyndgU/JBNxGTz081BydLXYPXGN+1/yzyTBopwAP5jF6DEPVUhyIlMc188XrJEeCGJfnA2k0g== X-Received: by 2002:aed:2494:: with SMTP id t20mr4813376qtc.135.1559240011968; Thu, 30 May 2019 11:13:31 -0700 (PDT) Received: from redhat.com (pool-100-0-197-103.bstnma.fios.verizon.net. [100.0.197.103]) by smtp.gmail.com with ESMTPSA id k9sm1894099qki.20.2019.05.30.11.13.30 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 30 May 2019 11:13:31 -0700 (PDT) Date: Thu, 30 May 2019 14:13:28 -0400 From: "Michael S. Tsirkin" To: David Miller Cc: jasowang@redhat.com, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, peterx@redhat.com, James.Bottomley@hansenpartnership.com, hch@infradead.org, jglisse@redhat.com, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, christophe.de.dinechin@gmail.com, jrdr.linux@gmail.com Subject: Re: [PATCH net-next 0/6] vhost: accelerate metadata access Message-ID: <20190530141243-mutt-send-email-mst@kernel.org> References: <20190524081218.2502-1-jasowang@redhat.com> <20190530.110730.2064393163616673523.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190530.110730.2064393163616673523.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, May 30, 2019 at 11:07:30AM -0700, David Miller wrote: > From: Jason Wang > Date: Fri, 24 May 2019 04:12:12 -0400 > > > This series tries to access virtqueue metadata through kernel virtual > > address instead of copy_user() friends since they had too much > > overheads like checks, spec barriers or even hardware feature > > toggling like SMAP. This is done through setup kernel address through > > direct mapping and co-opreate VM management with MMU notifiers. > > > > Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see > > obvious improvement. > > I'm still waiting for some review from mst. > > If I don't see any review soon I will just wipe these changes from > patchwork as it serves no purpose to just let them rot there. > > Thank you. I thought we agreed I'm merging this through my tree, not net-next. So you can safely wipe it. Thanks! -- MST