From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jody McIntyre Subject: Re: [RFC patch 1/1] Track raid5/6 statistics. Date: Thu, 27 Nov 2008 08:45:03 -0500 Message-ID: <20081127134503.GC29919@clouds> References: <20081126190452.775333692@sun.com> <20081126190854.813151413@sun.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7BIT Return-path: In-reply-to: Content-disposition: inline Sender: linux-raid-owner@vger.kernel.org To: Dan Williams Cc: linux-raid@vger.kernel.org, neilb@suse.de List-Id: linux-raid.ids Hi Dan, On Wed, Nov 26, 2008 at 02:50:18PM -0700, Dan Williams wrote: > I have done some work in this area too Got any preliminary patches you can share? > and have a lingering desire to hook MD up to the tracing > infrastructure du jour. Have you considered using tracepoints [1]? > This would save the overhead of atomic operations when we're not > profiling. Thanks for the suggestion, I'll look into that. Cheers, Jody > > Regards, > Dan > > [1]: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/tracepoints.txt;h=5d354e16749447c667934ecd4c8f4fe5ee3da36c;hb=HEAD