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 4FDB7C28CC0 for ; Thu, 30 May 2019 18:56:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 279E92603A for ; Thu, 30 May 2019 18:56:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726518AbfE3Szu (ORCPT ); Thu, 30 May 2019 14:55:50 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:57602 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726031AbfE3Szu (ORCPT ); Thu, 30 May 2019 14:55:50 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id D87A914D9DD5B; Thu, 30 May 2019 11:55:49 -0700 (PDT) Date: Thu, 30 May 2019 11:55:49 -0700 (PDT) Message-Id: <20190530.115549.1509561180724590494.davem@davemloft.net> To: mst@redhat.com 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 From: David Miller In-Reply-To: <20190530141243-mutt-send-email-mst@kernel.org> References: <20190524081218.2502-1-jasowang@redhat.com> <20190530.110730.2064393163616673523.davem@davemloft.net> <20190530141243-mutt-send-email-mst@kernel.org> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Thu, 30 May 2019 11:55:50 -0700 (PDT) Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: "Michael S. Tsirkin" Date: Thu, 30 May 2019 14:13:28 -0400 > 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. Aha, I didn't catch that, thanks!