From mboxrd@z Thu Jan 1 00:00:00 1970 From: Herbert Xu Subject: Re: [RFC PATCH 00/17] virtual-bus Date: Fri, 3 Apr 2009 01:06:10 +0800 Message-ID: <20090402170610.GA3001@gondor.apana.org.au> References: <49D49C1F.6030306@novell.com> <200904022243.21088.rusty@rustcorp.com.au> <49D4B4A3.5070008@novell.com> <49D4B87D.2000202@redhat.com> <20090402145018.GA816@gondor.apana.org.au> <49D4D301.2090209@redhat.com> <20090402154041.GA1774@gondor.apana.org.au> <49D4E072.2060003@redhat.com> <20090402160941.GB2173@gondor.apana.org.au> <49D4EDBD.3050900@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Gregory Haskins , Rusty Russell , anthony@codemonkey.ws, andi@firstfloor.org, linux-kernel@vger.kernel.org, agraf@suse.de, pmullaney@novell.com, pmorreale@novell.com, netdev@vger.kernel.org, kvm@vger.kernel.org, Ingo Molnar To: Avi Kivity Return-path: Received: from rhun.apana.org.au ([64.62.148.172]:42463 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1760140AbZDBRGb (ORCPT ); Thu, 2 Apr 2009 13:06:31 -0400 Content-Disposition: inline In-Reply-To: <49D4EDBD.3050900@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, Apr 02, 2009 at 07:54:21PM +0300, Avi Kivity wrote: > > 3ms latency for ping? > > (ping will always be scheduled immediately when the reply arrives if I > understand cfs, so guest load won't delay it) That only happens if the guest immediately does some CPU-intensive computation 3ms and assuming its timeslice lasts that long. In any case, the same thing will happen right now if the host or some other guest on the same CPU hogs the CPU for 3ms. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt