MURDER : tuning for increasing load
simon.matter at ch.sauter-bc.com
Tue May 24 11:42:44 EDT 2005
> John Madden wrote:
>>>I have to deal with increasing charge of by now 500 users that will grow
>>>up to 100 000.
>>>All mailboxes exist, for a 65Mb mailboxes.db on mupdate
>> Is murder even necessary for such a configuration? Based on the numbers
>> on Cyrus'
>> pages, I assumed 200k accounts on one big, beefy box would be ok (and
>> more easily swallowed "4 CPU box with 8 GB RAM" than they did "lots of
> It depend. If they make intensive use of SSL (POP3S and IMAPS), I guess
> they risk becoming CPU-bound, in which case it might be easier to split
> the load among multiple frontends.
The SSL problem could be solved with:
- hardware accelerated SSL on "the big box".
- imapproxies like perdition which terminate SSL running on quite simple
hardware in front of "the big box".
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