Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765996AbZDBRGp (ORCPT ); Thu, 2 Apr 2009 13:06:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760294AbZDBRGc (ORCPT ); Thu, 2 Apr 2009 13:06:32 -0400 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 Date: Fri, 3 Apr 2009 01:06:10 +0800 From: Herbert Xu To: Avi Kivity 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 Subject: Re: [RFC PATCH 00/17] virtual-bus 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 Content-Disposition: inline In-Reply-To: <49D4EDBD.3050900@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 924 Lines: 24 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/