From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Filesystem Tests Date: Wed, 06 Aug 2003 18:06:37 +0400 Message-ID: <3F310B6D.6010608@namesys.com> References: <3F306858.1040202@mrs.umn.edu> <20030805224152.528f2244.akpm@osdl.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <20030805224152.528f2244.akpm@osdl.org> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Andrew Morton Cc: Grant Miner , linux-kernel@vger.kernel.org, reiserfs-list@namesys.com Andrew Morton wrote: >But different filesystems will leave different amounts of dirty, unwritten >data in memory at the end of the test. On your machine, up to 200MB of >dirty data could be sitting there in memory at the end of the timing >interval. You need to decide how to account for that unwritten data in the >measurement. Simply ignoring it as you have done is certainly valid, but >is only realistic in a couple of scenarios: > unless I misunderstand something, he is running sync and not ignoring that. I don't think ext2 is a serious option for servers of the sort that Linux specializes in, which is probably why he didn't measure it. reiser4 cpu consumption is still dropping rapidly as others and I find kruft in the code and remove it. Major kruft remains still. -- Hans