Hi Tomas, You give some sort times for several IMAP servers, do you happen to have sort times for Dovecot?? Redards, -Rich On Fri, October 3, 2008 05:34, Tomas Kuliavas wrote: > > > Jesse Michaels wrote: >> >> Hello, I am running SquirrelMail 1.4.16, against EIMS Mail Server >> which support IMAP. >> >> SquirrelMail is very slow at loading mailboxes. EIMS stores mail in a >> single file, like UW IMAP server. If I telnet into the server, and >> select a mailbox, one in which I feel it is not that large, perhaps >> 3000 messages, I can get back a message count in under 3 seconds. >> >> SquirrelMail takes about 3 times as long to return the page. >> >> I have read all the docs at: >> http://www.squirrelmail.org/wiki/SpeedWithUW >> None of which seem to help. >> >> a1 OK login successful >> a2 SELECT "Read Mail 2008" >> * FLAGS (\Deleted \Seen \Recent \Answered \Flagged \Draft $MDNSent) >> * OK [PERMANENTFLAGS (\Deleted \Seen \Answered \Flagged \Draft >> $MDNSent)] OK >> * 3320 EXISTS >> * 0 RECENT >> * OK [UIDVALIDITY 3299809062] OK >> * OK [UIDNEXT 3350] OK >> a2 OK [READ-WRITE] SELECT succeded >> >> a3 CAPABILITY >> * CAPABILITY IMAP4rev1 AUTH=CRAM-MD5 AUTH=DIGEST-MD5 AUTH=NTLM UIDPLUS >> IDLE QUOTA NAMESPACE >> a3 OK CAPABILITY completed >> >> I have spoken with the developer, and he states that even though EIMS >> does not support sort and thread, that should have no impact on >> performance, and in fact it could slow it down. >> >> What is the trick to speed up web email? Or, can anyone give me any >> insight as to what my email server is doing wrong. Can someone give >> me some rough select times on mailboxes that have a lot of messages in >> them as well? >> -- >> Scott >> > > Select times for mailbox with 5000 messages > Cyrus - 1,3 sec > Courier - 55 sec > hMailServer - 1,5 sec > UW - 440 sec > > Select time depends on caching methods used by IMAP server. It might take > even 3500 seconds on UW. > > SORT extension does not improve SquirrelMail performance, if mailbox is not > sorted. > > If mailbox is sorted, SORT extension does improve SquirrelMail performance. > With SORT extension mailbox sorting is performed on IMAP server and it puts > more stress on IMAP server. EIMS developer won't like it, but it is faster > than sorting messages in PHP based webmail. Sorted mailbox performance might > be abysmal, if IMAP server does not cache message envelope information or > uses RAM to cache it. > > Other example > Load time for SquirrelMail mailbox with 5k messages, 15 messages per page, > sorted by sender. > * No sort extension (courier maildir) - 6314,06 > * Courier (maildir) - 1815,98 > * Cyrus - 829,48 > * UW (mbox) - 4575,44 > * hMailServer - 15163,11 > > Tests are performed on PHP setup with very high memory and timeout limits > and optimized memory usage. If SORT extension is not used on 5k sorted > mailbox, you might hit PHP memory limits instead of getting sorted results. > > -- > Tomas > -- > View this message in context: > http://www.nabble.com/performance-issues-that-seemingly-can-not-be-solved.-tp19755942p19757062.html > Sent from the squirrelmail-users mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > ----- > squirrelmail-users mailing list > Posting guidelines: http://squirrelmail.org/postingguidelines > List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx > List archives: http://news.gmane.org/gmane.mail.squirrelmail.user > List info (subscribe/unsubscribe/change options): > https://lists.sourceforge.net/lists/listinfo/squirrelmail-users > -R -- ------------------------------------------------------------------------ Rich Hall rich@xxxxxxxxxx http://www.netlynx.us/rich/ ham radio: kf6arx ------------------------------------------------------------------------ Learn from the mistakes of others. You'll never live long enough to make them all yourself. ------------------------------------------------------------------------ And remember - if it ain't broke, hit it again. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
