From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 3/3][QEMU] Support TX mitigation in QEMU's virtio_net device Date: Tue, 08 Jan 2008 15:53:49 +0200 Message-ID: <4783806D.8080303@qumranet.com> References: <11997420901032-git-send-email-aliguori@us.ibm.com> <1199742091998-git-send-email-aliguori@us.ibm.com> <1199742091954-git-send-email-aliguori@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Anthony Liguori Return-path: In-Reply-To: <1199742091954-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Anthony Liguori wrote: > This patch adds support for TX mitigation in QEMU using the new NOTIFY_ON_FULL > virtio ring flag. > > With this (modified to use VRING_USED_F_NO_NOTIFY as Rusty suggests) and the latest virtio patchqueue (now available as the virtio branch on kvm.git) I get better latency, but pings from the guest are still lost after 12-14 replies. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace