From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: [PATCH] reiserfs: eliminate minimum window size for bitmap searching Date: Tue, 22 Aug 2006 17:07:04 -0700 Message-ID: <44EB9C28.9030204@namesys.com> References: <44EB1484.2040502@suse.com> <44EB23D9.9000508@slaphack.com> <44EB28EC.50802@suse.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <44EB28EC.50802@suse.com> List-Id: Content-Type: text/plain; charset="us-ascii" To: Jeff Mahoney Cc: David Masover , Andrew Morton , Linus Torvalds , Linux Kernel Mailing List , ReiserFS List , Mike Benoit Jeff Mahoney wrote: > > > Also, I think the bigalloc behavior just ultimately ends up introducing > even more fragmentation on an already fragmented file system. It'll keep > contiguous chunks together, but those chunks can end up being spread all > over the disk. > > -Jeff > Yes, and almost as important, it makes it difficult to understand and predict the allocator, which means other optimizations become harder to do.