From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751946AbdIVICq (ORCPT ); Fri, 22 Sep 2017 04:02:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56740 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751704AbdIVICo (ORCPT ); Fri, 22 Sep 2017 04:02:44 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 366B9285B9 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=jasowang@redhat.com From: Jason Wang To: mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org Subject: [PATCH net-next RFC 0/5] batched tx processing in vhost_net Date: Fri, 22 Sep 2017 16:02:30 +0800 Message-Id: <1506067355-5771-1-git-send-email-jasowang@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 22 Sep 2017 08:02:44 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi: This series tries to implement basic tx batched processing. This is done by prefetching descriptor indices and update used ring in a batch. This intends to speed up used ring updating and improve the cache utilization. Test shows about ~22% improvement in tx pss. Please review. Jason Wang (5): vhost: split out ring head fetching logic vhost: introduce helper to prefetch desc index vhost: introduce vhost_add_used_idx() vhost_net: rename VHOST_RX_BATCH to VHOST_NET_BATCH vhost_net: basic tx virtqueue batched processing drivers/vhost/net.c | 221 ++++++++++++++++++++++++++++---------------------- drivers/vhost/vhost.c | 165 +++++++++++++++++++++++++++++++------ drivers/vhost/vhost.h | 9 ++ 3 files changed, 270 insertions(+), 125 deletions(-) -- 2.7.4