Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752373AbaFDWXF (ORCPT ); Wed, 4 Jun 2014 18:23:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:25325 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751743AbaFDWXD (ORCPT ); Wed, 4 Jun 2014 18:23:03 -0400 Date: Wed, 4 Jun 2014 18:22:50 -0400 From: Dave Jones To: Brandon Philips Cc: Greg KH , linux-mm@kvack.org, Linux Kernel Subject: Re: Bad rss-counter is back on 3.14-stable Message-ID: <20140604222250.GA12927@redhat.com> Mail-Followup-To: Dave Jones , Brandon Philips , Greg KH , linux-mm@kvack.org, Linux Kernel 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: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/