From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maynard Johnson Subject: Re: --mmap-pages option seemingly has no effect to help with LOST samples Date: Tue, 26 Jun 2012 15:32:17 -0500 Message-ID: <4FEA1C51.4010701@us.ibm.com> References: <4FD7ACB9.70205@us.ibm.com> <4FD7AF0C.1030300@gmail.com> <4FD8B32C.60608@us.ibm.com> <4FD8B641.9040907@gmail.com> <4FE49663.7000908@us.ibm.com> <4FE49A6F.7020503@gmail.com> <4FE4C589.5080802@us.ibm.com> <4FE4CB21.90005@gmail.com> <4FE4D446.5000906@us.ibm.com> <4FE4D7A8.5080607@gmail.com> <4FE87153.8010502@us.ibm.com> <4FEA18A5.8090106@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from e39.co.us.ibm.com ([32.97.110.160]:47398 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752137Ab2FZUcZ (ORCPT ); Tue, 26 Jun 2012 16:32:25 -0400 Received: from /spool/local by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 26 Jun 2012 14:32:24 -0600 Received: from d01relay06.pok.ibm.com (d01relay06.pok.ibm.com [9.56.227.116]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id 1D8B1C90050 for ; Tue, 26 Jun 2012 16:32:19 -0400 (EDT) Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay06.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q5QKWK3N19529778 for ; Tue, 26 Jun 2012 16:32:20 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q5QKWJaw007569 for ; Tue, 26 Jun 2012 17:32:19 -0300 In-Reply-To: <4FEA18A5.8090106@gmail.com> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: David Ahern Cc: linux-perf-users@vger.kernel.org, suka@us.ibm.com On 06/26/2012 03:16 PM, David Ahern wrote: > On 6/25/12 8:10 AM, Maynard Johnson wrote: > >> Just an FYI -- adding ":u" doesn't help for RHEL 6.2. Thanks much for the help so far. >> > > What kind of processor are you using and what is the output of: > dmesg |grep Perf As I mentioned, I'm seeing this symptom (incorrect counts) on both my Intel Core 2 Duo laptop and on an IBM POWER7 server. On the POWER7, 'dmesg | grep Perf' shows nothing. On my laptop, I get "Performance Events: PEBS fmt0+, Core2 events, Intel PMU driver." -Maynard > > David > -- > To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >