From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by qb-out-1314.google.com with SMTP id f14so816646qba.4 for ; Thu, 17 Jul 2008 16:50:26 -0700 (PDT) Date: Fri, 18 Jul 2008 02:49:01 +0300 From: Eduard - Gabriel Munteanu Subject: Re: [RFC PATCH 1/4] kmemtrace: Core implementation. Message-ID: <20080717234901.GA5233@localhost> References: <4472a3f883b0d9026bb2d8c490233b3eadf9b55e.1216255035.git.eduard.munteanu@linux360.ro> <20080717143434.79b33fe9.rdunlap@xenotime.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080717143434.79b33fe9.rdunlap@xenotime.net> Sender: owner-linux-mm@kvack.org Return-Path: To: Randy Dunlap Cc: penberg@cs.helsinki.fi, cl@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Thu, Jul 17, 2008 at 02:34:34PM -0700, Randy Dunlap wrote: > On Thu, 17 Jul 2008 03:46:45 +0300 Eduard - Gabriel Munteanu wrote: > > > +3) Boot the kmemtrace-enabled kernel if you haven't, preferably in the > > +'single' runlevel (so that relay buffers don't fill up easily), and run > > +kmemtrace: > > +# '$' does not mean user, but root here. > > +$ mount -t debugfs none /debug > > Please mount at /sys/kernel/debug, i.e., the expected debugfs mount point. > Oh, I did not know that. Thanks, will change accordingly. > > +$ mount -t proc none /proc > > +$ cd path/to/kmemtrace-user/ > > +$ ./kmemtraced > > +Wait a bit, then stop it with CTRL+C. > > +$ cat /debug/kmemtrace/total_overruns # Check if we didn't overrun, should > > + # be zero. > > +$ (Optionally) [Run kmemtrace_check separately on each cpu[0-9]*.out file to > > + check its correctness] > > +$ ./kmemtrace-report > > + > > +Now you should have a nice and short summary of how the allocator performs. > > > Otherwise looks nice. Thanks. > > --- > ~Randy > Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA > http://linuxplumbersconf.org/ -- 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