From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yiannis Mavroukakis Subject: Re: improving Reiserfs Performance Date: Wed, 25 May 2005 16:55:11 +0100 Message-ID: <42949FDF.8000406@darthvader.us> References: <42947589.2020707@hyves.nl> <4294783C.5040001@darthvader.us> <42947BCA.9080702@hyves.nl> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <42947BCA.9080702@hyves.nl> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Jos Houtman , reiserfs-list@namesys.com Jos Houtman wrote: > Yiannis Mavroukakis wrote: > >> Jos Houtman wrote: >> >>> Hello list, >>> >>> First of all, We are a website that provide picture albums to its >>> users. >>> At moment we host almost 2 million, which are served in 5 different >>> formats from icons to 700x500. >>> We store all there files on our NAS server and serve these with >>> SQUID proxys. >>> >>> But we are having performance problems, and I'am orientating myself >>> for possible fields of improvement. >>> >> [snip] >> Have you considered the fact that your bottleneck may be over NFS? >> >> Y. > > > I most certainly did, and it is a problem, but iam trying to work my > way bottom up. > It's a bit hard to say anything about NFS performance while the > filesystem/disks > could be causing the majority of the delays. > > After i did my best on the this level i intend to look at NFS in more > depth, but any hints/tips you allready have are welcome. > > jos > > ReiserFS actually performs the best under heavy hammering and thousands of files IMHO ;) Changing to RAID10 will improve performance Reiser4: again IMHO not yet, although your site would make a nice test bed :) Have you done any localised (i.e. not over a network) testing on the filesystem? If not, you'll be stabing in the dark for reasons, at least in my book. Do you have a stock kernel or have you 'custom' compiled yours? Y ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________