Kronolith and nag are dead slow

Gunnar Wrobel wrobel at kolabsys.com
Sun Oct 31 22:30:48 CET 2010


Zitat von Alexander Gran <alexg at moduleworks.com>:

> Hi,
>
>> Hm, the debugging capabilities of the current
> Kolab_Storage handler in
>> the web client are not that great. You could try to
> log the IMAP
>> traffic when the user accesses Kronolith.
>
> I just had a look by activating transaction logging.
> It's actually the time to fetch all entries.
> I then tried to use fetchmail (using a dummy mda that
> delivers to devnull) to make sure its no horde issue.
> But fetchmail also needs 42s to get all 1103 "mails".

Hm, I don't think fetchmail is really comparable to Horde. But  
basically you want to say that your IMAP server seems to be slow?

I wonder why that should only apply to nag and kronolith then. The  
mail part should be affected as well.

But if only nag and kronolith are slow then this would indicate that  
the caching does not work. Are your 1103 loaded on *each* page call?  
They shouldn't. The purpose of Kolab_Storage is to use caching there.  
It may be slow on the first connect but should be quick after that.

Cheers,

Gunnar


>
> Any idea how to speed that up?
>
> The system is idle, the messages should easily fit into
> the block cache, and its loopback network, so this
> should be no hardware issue.
> CPU load of both fetchmail and cyrus 0-1%, System load
> is 0.02
>
> regards
> Alex
>
>
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--
Gunnar Wrobel
Developer, Kolab Systems AG

e: wrobel at kolabsys.com
t: +49 700 6245 0000
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