From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa0-f51.google.com (mail-oa0-f51.google.com [209.85.219.51]) by kanga.kvack.org (Postfix) with ESMTP id 5A5726B0055 for ; Thu, 3 Apr 2014 19:34:22 -0400 (EDT) Received: by mail-oa0-f51.google.com with SMTP id i4so2765029oah.24 for ; Thu, 03 Apr 2014 16:34:22 -0700 (PDT) Received: from g4t3427.houston.hp.com (g4t3427.houston.hp.com. [15.201.208.55]) by mx.google.com with ESMTPS id wu5si5532858oeb.121.2014.04.03.16.34.21 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 03 Apr 2014 16:34:21 -0700 (PDT) Message-ID: <1396568057.4661.38.camel@buesod1.americas.hpqcorp.net> Subject: Re: [RFC] mm,tracing: improve current situation From: Davidlohr Bueso Date: Thu, 03 Apr 2014 16:34:17 -0700 In-Reply-To: <533DE12C.9030203@intel.com> References: <1396561440.4661.33.camel@buesod1.americas.hpqcorp.net> <533DE12C.9030203@intel.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Dave Hansen Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Dave Jones , Sasha Levin , Andrew Morton On Thu, 2014-04-03 at 15:31 -0700, Dave Hansen wrote: > On 04/03/2014 02:44 PM, Davidlohr Bueso wrote: > > Now, on a more general scenario, I basically would like to know, 1) is > > this actually useful... I'm hoping that, if in fact something like this > > gets merged, it won't just sit there. 2) What other general data would > > be useful for debugging purposes? I'm happy to collect feedback and send > > out something we can all benefit from. > > One thing that would be nice, specifically for the VM, would be to turn > all of the things that touch the /proc/vmstat counters > (count_vm_event(), etc...) in to tracepoints. Hmm what would be the difference? what's the issue with /proc/vmstat? I guess for one, some of the stats depend on build rules (ie TLB flushing statistics). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org