From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Silly question, defrag Date: Fri, 05 Apr 2002 12:49:12 +0400 Message-ID: <3CAD6508.2060308@namesys.com> References: <200204030017.12595@X-Message-Flag:> <3CAABBA6.3030101@swelltech.com> <200204030740.05950@X-Message-Flag:> <20020403154906.A21821@ultraviolet.org> <20972156.20020404111651@tnonline.net> <20020404105440.F27377@ultraviolet.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit list-help: list-unsubscribe: list-post: List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Tracy R Reed Cc: ReiserFS List There are a whole bunch of algorithms for optimizing layout for reads which are too expensive to do at every write. Doing them once a week is an excellent way to handle them. I am not well motivated as to talk about the advantages of features that ReiserFS lacks and other filesystems have..... but honesty requires it. It is important to put airholes into the layout, so that insertions can go somewhere, and it would not surprise me if ext2's defrag failed to do that. Hans