From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932984AbdC3HWl (ORCPT ); Thu, 30 Mar 2017 03:22:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41024 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932345AbdC3HWj (ORCPT ); Thu, 30 Mar 2017 03:22:39 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 6063A7F6C8 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jasowang@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 6063A7F6C8 From: Jason Wang To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mst@redhat.com, Jason Wang Subject: [PATCH V2 net-next 0/7] vhost-net rx batching Date: Thu, 30 Mar 2017 15:22:23 +0800 Message-Id: <1490858550-7763-1-git-send-email-jasowang@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 30 Mar 2017 07:22:38 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all: This series tries to implement rx batching for vhost-net. This is done by batching the dequeuing from skb_array which was exported by underlayer socket and pass the sbk back through msg_control to finish userspace copying. Tests shows at most 19% improvment on rx pps. Please review. Thanks Changes from V1: - switch to use for() in __ptr_ring_consume_batched() - rename peek_head_len_batched() to fetch_skbs() - use skb_array_consume_batched() instead of skb_array_consume_batched_bh() since no consumer run in bh - drop the lockless peeking patch since skb_array could be resized, so it's not safe to call lockless one Jason Wang (7): ptr_ring: introduce batch dequeuing skb_array: introduce batch dequeuing tun: export skb_array tap: export skb_array tun: support receiving skb through msg_control tap: support receiving skb from msg_control vhost_net: try batch dequing from skb array drivers/net/tap.c | 25 +++++++++++++++--- drivers/net/tun.c | 31 ++++++++++++++++------ drivers/vhost/net.c | 64 +++++++++++++++++++++++++++++++++++++++++++--- include/linux/if_tap.h | 5 ++++ include/linux/if_tun.h | 5 ++++ include/linux/ptr_ring.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/skb_array.h | 25 ++++++++++++++++++ 7 files changed, 204 insertions(+), 16 deletions(-) -- 2.7.4