Date: Fri, 6 Jun 2014 13:03:07 +0200
From: Michal Hocko <mhocko@suse.cz>
To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Mel Gorman <mgorman@suse.de>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        Rik van Riel <riel@redhat.com>
Subject: Re: Interactivity regression since v3.11 in mm/vmscan.c
Message-ID: <20140606110306.GD26253@dhcp22.suse.cz>
References: <53905594d284f_71f12992fc6a@nysa.notmuch>
 <20140605133747.GB2942@dhcp22.suse.cz>
 <CAMP44s1kk8PyMd603g0C9yvHuuUZXzwwNQHpM8Abghvc_Os-SQ@mail.gmail.com>
 <20140606091620.GC26253@dhcp22.suse.cz>
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On Fri 06-06-14 05:33:28, Felipe Contreras wrote:
> On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko <mhocko@suse.cz> wrote:
> 
> > Mel has a nice systemtap script (attached) to watch for stalls. Maybe
> > you can give it a try?
> 
> Is there any special configurations I should enable?

You need debuginfo and systemtap AFAIK. I haven't used this script
myself.
-- 
Michal Hocko
SUSE Labs
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