Performance problems, compared to wu-imapd

[Rob Siemborski]

On Thu, 29 Jan 2004, Tuomas Toropainen wrote:

> What am I doing wrong, or is this computer just too slow for cyrus to
> perform well? Or are the default databases so poor that they cayse this?
>
> Complete results are at
> http://www.cc.jyu.fi/~tjt/imaptestit/cyrus/results.html (cyrus)
> and http://www.cc.jyu.fi/~tjt/imaptestit/wu-imapd/results.html (wu-imapd)

Its very hard to come up with a good IMAP performance test, since modeling
real-world use is extreemly hard.  Just straight "dump the bodies of lots
of messages" is almost certianly *not* a good model of real-world use (and
UW-IMAPd will almost certainly win in such a test).

As far as performance tuning goes, for starters, you don't want to be
using the default 2.1 databases (at the very least, you should be using
skiplist for the mailbox list).

-Rob

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
Research Systems Programmer * /usr/contributed Gatekeeper