Poor Roundcube performance with default configuration

[Christian Hügel]

The issue with the poor performance is the "Synchronous File Operations" 
[1] For a ext2/ext3 file system you can turn this off


[1] https://docs.kolab.org/administrator-guide/tweaking-cyrus-imapd.html



Am 17-03-2014 21:27, schrieb Christian Hügel:
> This is the same observation I have made with roundcube [1] I even went
> so far installing a imapproxy to improve somehow the webinterface.
> 
> 
> [1] http://lists.kolab.org/pipermail/users/2013-December/016164.html
> 
> Am 17.03.2014 21:12, schrieb Brady, Mike:
>> Mileage may well vary on this one but I thought that others may be
>> interested in this observation.
>> 
>> With a default configuration of Kolab 3.1 on a single Centos 6.5 box I
>> have found Roundcube performance to be not great.
>> 
>> By default configuration I mean nothing more than
>> 
>> yum install kolab
>> setup-kolab
>> 
>> has been done.
>> 
>> I have found that disabling imap_cache and messages_cache 
>> significantly
>> improves Roundcube performance.  These settings can be found in
>> /etc/roundcube/config.inc.php.  I notice that what I assume to be the
>> Roundcube defaults in /etc/roundcube/defaults.inc.php is for these to 
>> be
>> disabled.
>> 
>> Tuning mysql (which I haven't done) may well improve things, but I 
>> have
>> to wonder if it is worth the additional overhead of running a mysql
>> cache for Roundcube with a default all in one installation of the 
>> Kolab
>> components?
>> 
>> Thoughts?
>> 
>> Regards
>> 
>> Mike
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> 
> 
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