On 27.07.2010 14:48, Ed W wrote: >> So, slow is THREAD or its result parsing. > > Yes, confirmed in the IMAP logs.
Yes what? The command or parsing? > So my reproducible behaviour is to take vanilla RC beta, connect to a Better would be to use svn-trunk > dovecot instance with an inbox containing 33K messages, click the icon > top left corner of the message list and choose "Thread" from the view > options, very short pause while the list redraws, then finally double > click on some small message > > The imap logs from that point show the imap server very quickly (sub 1 > second) return what appears to be the thread info for every message, > then a sorted list of the same (sort states completed in 0.102 seconds) > There is then a 45 sec (ish) delay before the connection resumes and 45 sec delay after SORT response? Please attach Roundcube's imap_debug log (with timestamps). > grabs the message itself and the browser suddenly wakes up and displays > the message. During that period the PHP process is wedged at 100% cpu. > Then I go back into the message list, disable threading and this time > double click on the same message. Now the message displays instantly. > Comparing the imap_log I see what appears the exact same set of commands > except for the lack of the threads list. > > It would therefore seem extremely likely that it's the parsing of the > imap THREAD results which is causing the delay and high CPU? I cannot imagine a 45 sec delay just for PHP code. Please, attach complete THREAD command response. > Interesting that you don't see this? Does your 10K message folder > contain any threaded messages? Do you have threading enabled in your > message list view? Yes, I have. Still I have no idea what it could be. Maybe it's something with parallel connections handling in dovecot? Check login_* options in dovecot.conf. When you open a message there are two requests, one for 'show' action and one for 'getunread'. -- Aleksander 'A.L.E.C' Machniak http://alec.pl gg:2275252 LAN Management System Developer http://lms.org.pl Roundcube Webmail Developer http://roundcube.net _______________________________________________ List info: http://lists.roundcube.net/users/
