From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-f42.google.com (mail-qg0-f42.google.com [209.85.192.42]) by kanga.kvack.org (Postfix) with ESMTP id 0033D6B0080 for ; Wed, 4 Jun 2014 18:22:59 -0400 (EDT) Received: by mail-qg0-f42.google.com with SMTP id q107so274628qgd.15 for ; Wed, 04 Jun 2014 15:22:59 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTP id y89si5645618qgd.32.2014.06.04.15.22.58 for ; Wed, 04 Jun 2014 15:22:58 -0700 (PDT) Date: Wed, 4 Jun 2014 18:22:50 -0400 From: Dave Jones Subject: Re: Bad rss-counter is back on 3.14-stable Message-ID: <20140604222250.GA12927@redhat.com> References: <20140604182739.GA30340@kroah.com> <20140604191228.GB12375@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Brandon Philips Cc: Greg KH , linux-mm@kvack.org, Linux Kernel On Wed, Jun 04, 2014 at 12:35:45PM -0700, Brandon Philips wrote: > On Wed, Jun 4, 2014 at 12:12 PM, Dave Jones wrote: > > Brandon, what kind of workload is that machine doing ? I wonder if I can > > add something to trinity to make it provoke it. > > A really boring database workload (fsync() ~50ms) with a sloowww block > device with btrfs. There are occasional CPU spikes due to expensive > queries. > > How can I be more helpful in my workload description? I feared it would be something like a database. Trying to replicate things seen under those workloads always seems to be challenging, in part due to the system specific setups they seem to have. I wonder if any of the benchmarking apps we have do a realistic representation of what modern databases do. It might be a fun project to take something like that and extend it to do random queries. Dave -- 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