On Wed, 16 Feb 2005 16:21:09 +0100 Attila Nagy <[EMAIL PROTECTED]> wrote:
> Amavisd was slow like hell, but cyrus could easily put email down to > disk at a rate of 10-15 MBps. > > Take the above numbers with a grain of salt, because the testing was > pretty lame 10-15MBps ... then add a few hundred concurrent pop & imap sessions plus some monitoring/statistical script walking your spool doing various operations and see this number fall down dramatically ... Because with random i/o ops you increase time disk heads travel around and add latency to the whole setup. The only thing that helps here is having lots and lots of disks or hw raid controllers with nice big caches. Just what 'lots' and 'big' means depends much on your actual needs. -- Jure Pečar http://jure.pecar.org/ --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
