[imp] Re: Re[4]: IMP 3.2.1 very slow

[Abner G. Jacobsen]

z33k666 at icqmail.com wrote:

> Quoting Andreas Danzer <ad at ixx.com>:
> 
>> > This has nothing to do with 'mcrypt' or the changes made in Horde.
>> Instead,
>> > it sounds like you have large mail folders.  If using either mbox
>> > format
>> of
>> > maildir format, past a certain size of mailbox (depending on OS,
>> > caching, file system, software, speed of hardware, etc.) they all begin
>> > to take
>> > performance hits on the _mail server_ side, not Horde/IMP.  For proof
>> > of this, try logging directly into your IMAP server (e.g. 'telnet
>> > localhost
>> > imap').  Go to a directory with a lot of messages (my trash directory
>> > has 4000+ messages in maildir format on a reiserfs file system). Then
>> > do an IMAP search query for unread messages.
>> 
>> Actually it doesn't just take ages to display the messages - IMP isn't
>> able to diplay anything and it's even not possible to login at all
>> (timeouts are set to 1/2 hour). This IS an imp/horde problem as we're
>> able to connect to that mailbox with other frontends. Speed of hardware
>> is hardly an issue as them machines are 2,4GHz P4s with plenty of RAM
>> and a fast disk-array.
>> 
>> I still think that Horde/IMP is a great piece of software, but it
>> looks like that there are some configuration where it's not working
>> well...
>> 
>> Best regards
>> Andreas Danzer
>> 
>> 
>> --
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>> 
> 
> 
> I have had severe speed problems as well.  I read a thread (somewhere)
> that PHP
> 4.3.x may have something to do with it.  I downgraded to PHP 4.2.3 and the
> speed problems went away.
> 
> I changed everything, c-client, apache, mcrypt, no mcrypt, IMAP servers,
> etc...
> before I found the thread mentioned above.  I tried logging in with a
> non-PHP client and there were no speed issues.
> 
> With PHP 4.3.1, while watching the IMAP logs, it would take 30+ seconds
> for the server to actually process the login after a button was pressed
> (the user is
> logged in and out after *any* IMAP request).   After switching to PHP
> 4.2.3, the login process took less than 2 seconds.
> 
> I do not know why this happens.  I cannot find a lot of info on this
> problem. All I know is, it worked for me on both my production and
> development servers.
> 
>     * Horde: 2.2.1 and Horde: 3.0-cvs
>     * IMP: 3.2.1 and IMP: 4.0-cvs
>     * Turba: 1.2 and Turba: 2.0-cvs
>     * PHP Version: 4.2.3
> 
> Zeke
>

Using php 4.3.1 with apache2 i solved this problem putting 

echo "\n" ;

after every header(... int the sources