Re: [SM-USERS] Turck MMCache & squirrelmail & performance

[Paul L. <pa...@sq...>]

On 4/27/07, ar...@dc... <ar...@dc...> wrote:
> > Hiya.  I think you need closer analysis of where the bottleneck(s) are
> > before you just throw a PHP cache at the problem.  Without detailed
> > information about your system, I can't really offer specific suggestions.
>
> Okay,
>
> Distro:  Fedora Core 6
> Kernel:  Linux version 2.6.20-1.2944.fc6
> (bre...@hs...) (gcc version 4.1.1 20070105 (Red
> Hat 4.1.1-51)) #1 SMP Tue Apr 10 18:46:45 EDT 2007
> CPU:     AMD Sempron 3000+
> RAM:     1GB Dual-channel DDR 400 cas 2-2-5
> Motherboard:  ASUS A7V880
> Hard Drive:   Western Digital 120gb IDE
>
> PHP Version 5.1.6
> Apache/2.2.4 (Fedora)
> IMAP:  dovecot-1.0.0-8_56.fc6.at
> Mailbox format:  mbox
>
> SquirrelMail Configuration : Read: config.php (1.4.0)
> ---------------------------------------------------------
> Plugins
>   Installed Plugins
>     1. delete_move_next
>     2. filters
>     3. message_details
>     4. newmail
>     5. sent_subfolders
>     6. squirrelspell
>     7. folder_sizes
>     8. info
>     9. listcommands
>     10. administrator
>     11. abook_take
>     12. spamcop
>     13. view_as_html
>     14. compatibility
>     15. image_buttons
>     16. msg_flags
>     17. attachment_tnef
>     18. archive_mail
>     19. empty_trash
>     20. proon
>     21. spamassassin
>
>   Available Plugins:
>     22. bug_report
>     23. calendar
>     24. addgraphics
>     25. expire
>     26. gpg
>     27. translate
>     28. mail_fetch
>     29. fortune
>     30. auto_prune_sent
>
>
> > I'd look at optimizing the IMAP server first.
>
> I have already implemented most of the suggestions in the optimization
> guide except the cache.  The only thing I really don't want to do is sort
> my mail upon receipt.
>
> This all started happening when I installed the proon plugin.  Now, when I
> log in, it can take a minute or more to finish.  This doesn't always
> happen but it frequently does.

If you disable proon and/or filters and the problem goes away, the
only REAL way to fix your problem is to do server-side tasks on the
server, not in the client.  Your mail client, and especially one
written in PHP is not the place to filter incoming mail.  There's not
even a good reason to do it that way if you have the ability to do it
on the server.  If you're still stubborn about it, you might try
asking around the Dovecot community for performance tweaks.

> I suppose I could try to figure out how to rewrite the proon as a cron
> job.  Then it would not have to run at login.  That would be a serious
> undertaking for me though.  :(

http://web.archive.org/web/20060222004235/www.squirrelmail.org/plugin_view.php?id=255

See attached for last publicly available copy.

> Again, any help would be appreciated.