[Dovecot] imaptest: performance testing

[Nick Urbanik]

Dear Folks,

Using head of imaptest with dovecot 2.1, I am attempting to put a
heavy load on the server, with insufficient success.

I made 15000 user accounts, put them in to a file, one per line.  Then
I ran imaptest with

./imaptest userfile=../../imap-test-userlist-15001.txt clients=15001
pass=SECRETPASSWORD

But CPU load is only reaching 20.

I put an mbox containing 67 messages into ~/mail/dovecot-crlf

So what is the best way to put a really heavy load on an imap server?
The documentation describes testing correctness of the server without
really emphasising performance.

I would like to do something like dnsperf, which adds a linearly
increasing load until the server is unable to cope.

This machine has 24G RAM and 8 cores.  I'll be grateful for any
constructive suggestions.
-- 
Nick Urbanik             http://nicku.org           nicku at nicku.org
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24