From patchwork Thu Aug 9 17:50:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Hemminger X-Patchwork-Id: 43655 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 35A3F2C39; Thu, 9 Aug 2018 19:50:21 +0200 (CEST) Received: from mail-pf1-f196.google.com (mail-pf1-f196.google.com [209.85.210.196]) by dpdk.org (Postfix) with ESMTP id 2EEF82BCD for ; Thu, 9 Aug 2018 19:50:19 +0200 (CEST) Received: by mail-pf1-f196.google.com with SMTP id x17-v6so3194924pfh.5 for ; Thu, 09 Aug 2018 10:50:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=yKO4dBmNoahqBIWDSyh5eB5hHQDtCLb4xUtp8JK4dCY=; b=BEjiaTvWWnik0y3vYfPlQjyEfVMn/hHNw0UmWOaPF4hopBtjwxKPMa8xL3Oj/BfAqg jOK44XhQH6W/WFQrdZaPm26lYe/w/sOc7PhVCCMa0b8TRgcdKGWiBTRkmwaREjRrq5U5 BhMPUkUhc+FiHCQYsblduh+F6i/7iMAmNk3zMWyeTDrG8Nii07zP2pdTIHxw/bc3L97A 1FTtdDbeCGSe+Un60WOsqUcQCXHb6VjUn+WhM3H7gSfG0Vgit8aA01OBIzrW8uzKuQlB gkUgg4PATdt01CwflqMNCTtPOynBW3fZYEm/d9Rqxzzjckj6aQdPeQxICe/fly8F8UEG fwmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=yKO4dBmNoahqBIWDSyh5eB5hHQDtCLb4xUtp8JK4dCY=; b=cvOFufLhR1P2kn8Nz8gN+HhEnlqdkOoccYYL9SsrgXDS4RDCM19haQOGW3S/SN2fHY UHc880PnKDmyoagWK5octSTyL7De3JjBr/C3gAnC0lgvLoiBsH4IH5Mf3CcFh1I0ClDf 9KFrD+zWs+peAaZZcLdW3B4dN6RwamzflatN03/qY4XGPdyJlELQJOIAscWimr5RPdgr dPJqd7jC9IkSfp4SsglLXI2iytGeNycEm/sA2KP+2j5eg4AvrPHeH8UcHUZrWHIiSC6m l5roukSXbLwAjx1oyXQGbuErL8HOiBwc/iuk6rYMleLuBWw68ivp6mBvZGot7RnJnFiK VzQQ== X-Gm-Message-State: AOUpUlFcvsKrcSmXkOnIbdfKN/pPIWtbwZFq6cY0rDFPt/uDRneOpFG4 coD7+y7eOlyxe0VwEemX+u4aGsnVggE= X-Google-Smtp-Source: AA+uWPwQ/Grh+90CR6r5Twmqnl1+TooVR2OaQs5bkhB7mFJQo8OeiNlv1B8hJkEtR7hjVfoSYg8E6w== X-Received: by 2002:a62:95d1:: with SMTP id c78-v6mr3435222pfk.130.1533837017750; Thu, 09 Aug 2018 10:50:17 -0700 (PDT) Received: from xeon-e3.lan (204-195-22-127.wavecable.com. [204.195.22.127]) by smtp.gmail.com with ESMTPSA id n22-v6sm14993873pfj.68.2018.08.09.10.50.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Aug 2018 10:50:16 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger Date: Thu, 9 Aug 2018 10:50:04 -0700 Message-Id: <20180809175008.5787-1-stephen@networkplumber.org> X-Mailer: git-send-email 2.18.0 Subject: [dpdk-dev] [PATCH 0/4] netvsc performance enhancements X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Some more netvsc performance related changes. The biggest benefit comes from lowering the hypervisor polling rate from 100us to 50us. Supporting tx_done_cleanup can also help some applications get through the send completions faster. Stephen Hemminger (4): netvsc: chimney buffer size error handling bus/vmbus: add host latency tuning function netvsc: set lower host latency netvsc: implement tx_done_cleanup drivers/bus/vmbus/rte_bus_vmbus.h | 15 +++++++++++ drivers/bus/vmbus/rte_bus_vmbus_version.map | 1 + drivers/bus/vmbus/vmbus_channel.c | 30 +++++++++++++++++++++ drivers/net/netvsc/hn_ethdev.c | 7 +++++ drivers/net/netvsc/hn_nvs.c | 13 +++------ drivers/net/netvsc/hn_rndis.c | 2 +- drivers/net/netvsc/hn_rxtx.c | 26 ++++++++++++++---- drivers/net/netvsc/hn_var.h | 7 ++++- 8 files changed, 85 insertions(+), 16 deletions(-)