From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: About the oprofile tools and related profiling tools Date: Tue, 31 May 2011 10:44:33 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Lv, Hui" Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On Mon, May 30, 2011 at 4:25 AM, Lv, Hui wrote: > I found the oprofile tools were not supported in PVOPS domain0(from jerem= y=92s > tree). Someone has made the patch to enable it. When I applied such patch= , > xenoprofile can work. But the results were not trusted. (I think, part of > this reason was due to xen, which changed the NMI handling way, but did n= ot > update the xenoprofile part) > > So my question is that, does anyone still maintain this tools? Or, do xen > guys have a plan to enable more powerful profiling tools like =91perf=92 = in > native Linux or something else. > > One of my basic feeling about xen=92s performance profiling tools is that= the > functional level profiling tools like oprofile were neglected recently. Indeed, they have rather been. I'd love xenoprofile to be in a better working state, but unfortunately I simply don't have the time to work on it. But I'd be willing to do what I could to help someone who did step up to make things work. -George