From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 6 Mar 2001 17:56:10 -0300 (BRT) From: Marcelo Tosatti Subject: Re: Linux 2.2 vs 2.4 for PostgreSQL In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Matthew Kirkwood Cc: linux-mm@kvack.org, Mike Galbraith , Rik van Riel List-ID: On Tue, 6 Mar 2001, Matthew Kirkwood wrote: > Hi, > > I have been collecting some postgres benchmark numbers > on various kernels, which may be of interest to this > list. > > The test was to run "pgbench" with various numbers of > clients against postgresql 7.1beta4. The benchmark > looks rather like a fairly minimal TPC/B, with lots of > small transactions, all committed. It's not very > complex, but does produce pretty stable numbers, and > appears capable of showing up performance improvements > or deteriorations. Very nice. > Invitations: > * Anyone care to suggest any patches/configuration tweaks/ > &c, which might prove an interesting test? Are there > significant elevator/VM differences between 2.4.2ac and > 2.4.3pre? Yes, there are significant VM differenteces between Linus tree and -ac. I'll try to setup the environment for this benchmark today on one of our (working) test boxes. Thanks -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/