From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nikita Danilov Subject: Re: mongo benchmark results Date: Mon, 26 Jul 2004 12:24:50 +0400 Message-ID: <16644.49106.254644.433410@laputa.namesys.com> References: <20040726055047.E145F15C29@mail03.powweb.com> <4104A933.7020509@namesys.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: <4104A933.7020509@namesys.com> List-Id: Content-Type: text/plain; charset="us-ascii" To: Hans Reiser Cc: David Dabbs , reiserfs-list@namesys.com Hans Reiser writes: > David Dabbs wrote: > > >At http://dabbs.net/reiser4/mongo.html I've posted some benchmarks from my > >aging but available test box. All numbers were generated with the Namesys > >mm7 snapshot. The "A.INFO_R4=new" are results from a reiser4 with modified > >comparison functions as well as znode_contains_key_strict(). So, here are my > >questions: > > > >Do these results appear consistent with others' recent benchmarking? > > > > > Increase file_size to 8k, and then we can compare. This will reduce > reiser4's space savings from 19% to 9%, but it will probably increase > performance. > > Your work had a remarkable effect on the create phase. Very good work. > I don't know why the impact was not larger for the stats phase. Isn't this strange that changes to the key comparison function improved _real_ time more than _cpu_ time? I don't understand this. Nikita.