From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: event TRC_MEM_PAGE_GRANT_TRANSFER Date: Tue, 23 Jan 2007 18:57:47 +0000 Message-ID: References: <45B64B1F.10601@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <45B64B1F.10601@hp.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Rob Gardner , Cesar Fernandes Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 23/1/07 17:51, "Rob Gardner" wrote: > Yeah I noticed that I/O count has not been working lately in xenmon but > haven't had a chance yet to see why. The TRC_MEM_PAGE_GRANT_TRANSFER > event is being "logged" but the reason it doesn't show up in the trace > buffer may be because that event is never actually happening. It seems > that there has been some change in the mechanism used to move I/O pages > between domains. Grant transfers are no longer used to move network data from netback to netfront (except for backward compatibility with old netfront drivers). -- Keir