[Dovecot] dbox benchmarks

[Felix SchŸueren]

Timo Sirainen wrote:
> On Apr 2, 2009, at 10:08 PM, Daniel L. Miller wrote:
> 
>> I can see where large mailservers would benefit from significant write 
>> performance increases - but unless the server is being actively 
>> limited by the local delivery agent, what other performance benefits 
>> does this offer?
>>
>> In particular, is there any increase in READ performance by using dbox?
> 
> Should be, since the files are larger there is most likely less 
> fragmentation. But it's more difficult to benchmark read performance in 
> a realistic way.
> 
>>  Does it reduce memory consumption at all?
> 
> Maybe a bit, but that's probably irrelevant.
> 
what's most relevant for us about dbox: Backups. We have lots of 
customers with huge maildirs, and Backups are taking forever (just 
having to fstat >100k entries takes a while, then all the individual 
stuff for all the new messages...). Go dbox! :)

Kind regards,

Felix

-- 
Felix Schüren
Head of NOC

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