Received: by 2002:a25:683:0:0:0:0:0 with SMTP id 125csp1381501ybg; Thu, 11 Jun 2020 08:24:57 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzRQTWiYtpGJNUzzzoJYSBNymq5GzzfES/Qb9B0oOQz5EjPwiuDlqpIJOrRwr5S6+af9Uco X-Received: by 2002:a17:906:c10f:: with SMTP id do15mr9249450ejc.249.1591889097529; Thu, 11 Jun 2020 08:24:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1591889097; cv=none; d=google.com; s=arc-20160816; b=Kc6WelP67GYjAGGyY9n2MZk2B/woGYQbge9ZGa5dyOb1vUCkMCvu2D5972G7ccPqbF 3pKLvQTN8nhvlCVwQcnit0chLoYL3u/w6+skQhSIAlMVSXOWQZMqz2QUwnTqUxYESuXL BfWTX2ISjmNUmoDEJt8o4cGEzwrl/DPnZTQzEvbYv6aeTtmmYoHGPR6S4s5gNFY3ciPP 2k+DBfLjOOgcm1eJWPXGChxt8yxWLvHWj5lfn46kyl5RlAgpnI7R1bt5UIrlGz8YTbpR 79707H874KYds8c6KsSAHYKT690+wsMBNIUQCgYm46/L+1IGsE/qJu34ffqamhKiDGUP JrZw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=F+errMLdvgi4MHt8jCQq09ZX5AvpbDZ+cZ9ta5vO2pQ=; b=YvtZfnb4W864OuIsOF3e2MRuQW322PiYDLpmfNvFBZGS0Pf1ujdEmi/D/zPjGWyRrY /KDAbDamt6FQbJxled1/p3A+Fhq7WCVNzoHdhBUtiiS2WIiaaoBHCcR0B15Icj3gKEZZ M4TNCF7I6c/8BU12cfUFoHnSlQH1IEcWu9MvDokRHzmrMCc3SF6qw1R7evOECinV5f8j +iD7x7pfhwlG2dlO6o0ykwwzdLL4RESgoxf1naAP8k8YRf54os1lc4AQ2qj9S+UuzmJS 3toSX1gbAmOviRxK9dm/KiobhI5vCaZc7hOLx6ahmoS6Fjl0cZ9k4DV5bH1ZHTK8n8Vs qT1Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2020-01-29 header.b=qQeRu8d9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id k12si1994582edi.198.2020.06.11.08.24.34; Thu, 11 Jun 2020 08:24:57 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2020-01-29 header.b=qQeRu8d9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728585AbgFKPWW (ORCPT + 99 others); Thu, 11 Jun 2020 11:22:22 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:35018 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728365AbgFKPWV (ORCPT ); Thu, 11 Jun 2020 11:22:21 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05BFGwIx189025; Thu, 11 Jun 2020 15:22:15 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2020-01-29; bh=F+errMLdvgi4MHt8jCQq09ZX5AvpbDZ+cZ9ta5vO2pQ=; b=qQeRu8d9AseQvkn6mmiWlD6UFRviqGajGZpCB4mNg4zU8Yg0+3HgGizUcCZRBNQD4DS8 p8w8LmzJdXtq6u9UUWQQYHcXXXLHhk8hqI9y6gLjjt8hqxWlT0eGEYhx71kgkHGu6wII bzUaU3VJ/Zh88Dkzg0+Nn5YMEyucRur96i524mcIawwORJ176PEbMaSMhH8MT+UtASSt WX6ptbjkL6WVwZeKOa4VK/oUtoUJepBkRu7UI7wTNDdi8K0ggQHHm4KlzwwrpnIczYGU 9GBJOstKJZoXKJGRhdwAANFY7GseOg93bG+y9h6L28r1oXrVE0GU07nBVApJRaQcR5Cj 8Q== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2120.oracle.com with ESMTP id 31g3sn8cv9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 11 Jun 2020 15:22:15 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05BFIXc3033187; Thu, 11 Jun 2020 15:22:14 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userp3020.oracle.com with ESMTP id 31gmwvhfn3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Jun 2020 15:22:14 +0000 Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 05BFMDHj017504; Thu, 11 Jun 2020 15:22:13 GMT Received: from char.us.oracle.com (/10.152.32.25) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 11 Jun 2020 08:22:13 -0700 Received: by char.us.oracle.com (Postfix, from userid 1000) id EBBF46A0100; Thu, 11 Jun 2020 11:22:57 -0400 (EDT) Date: Thu, 11 Jun 2020 11:22:57 -0400 From: Konrad Rzeszutek Wilk To: "Michael S. Tsirkin" Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, Jason Wang , eperezma@redhat.com Subject: Re: [PATCH RFC v8 02/11] vhost: use batched get_vq_desc version Message-ID: <20200611152257.GA1798@char.us.oracle.com> References: <20200611113404.17810-1-mst@redhat.com> <20200611113404.17810-3-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200611113404.17810-3-mst@redhat.com> User-Agent: Mutt/1.9.1 (2017-09-22) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9649 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 spamscore=0 adultscore=0 mlxscore=0 mlxlogscore=944 bulkscore=0 malwarescore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006110121 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9649 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 cotscore=-2147483648 suspectscore=0 spamscore=0 bulkscore=0 malwarescore=0 phishscore=0 mlxscore=0 mlxlogscore=995 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006110121 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 11, 2020 at 07:34:19AM -0400, Michael S. Tsirkin wrote: > As testing shows no performance change, switch to that now. What kind of testing? 100GiB? Low latency?