From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: v3 logging speedups for 2.6 Date: Thu, 11 Dec 2003 13:10:28 -0500 Message-ID: <1071166228.11147.122.camel@tiny.suse.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: Content-Type: text/plain; charset="us-ascii" To: reiserfs-list@namesys.com Hello everyone, This is part one of the data logging port to 2.6, it includes all the cleanups and journal performance fixes. Basically, it's everything except the data=journal and data=ordered changes. The 2.6 merge has a few new things as well, I've changed things around so that metadata and log blocks will go onto the system dirty lists. This should make it easier to improve log performance, since most of the work will be done outside the journal locks. The code works for me, but should be considered highly experimental. In general, it is significantly faster than vanilla 2.6.0-test11, I've done tests with dbench, iozone, synctest and a few others. streaming writes didn't see much improvement (they were already at disk speeds), but most other tests did. Anyway, for the truly daring among you: ftp.suse.com/pub/people/mason/patches/data-logging/experimental/2.6.0-test11 The more bug reports I get now, the faster I'll be able to stabilize things. Get the latest reiserfsck and check your disks after each use. -chris