We recently took over a webmail mail system and are running FreeBSD, Postfix, Apache mod_php4.3, Courier-imap and SquirrelMail. The machine is a P4 1.8Ghz with 7200rpm IDE drives and 1GB of RAM.
The traffic on the server is fair, we receive between 70k and 90k messages and have about 10k - 13k SM logins per day. Postfix doesn't load the CPU much, but SquirrelMail is killing it. The machine very often maxes out the CPU and the load average is between 2.5 and 3, with peeks up to 6.5. What I have noticed is that Apache seems to get caught in some kind of loop with certain processes, which then utilizes the remaining CPU power. Sometimes these processes live for several hours before kill them manually. When matching the PID with Apache's server status I see that these processes are serving src/download.php Sample output from top: CPU states: 99.6% user, 0.0% nice, 0.4% system, 0.0% interrupt, 0.0% idle PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND 54466 www 64 0 19880K 8408K RUN 118:46 64.06% 64.06% httpd <- download.php 29378 bjorn 33 0 2044K 1012K RUN 0:00 9.69% 1.76% top 14942 www 2 0 21060K 9912K sbwait 3:26 1.71% 1.71% httpd 87761 www 2 0 34468K 26780K sbwait 7:30 1.42% 1.42% httpd 39087 www 2 0 27072K 12724K sbwait 6:13 1.07% 1.07% httpd I couldn't find any info on this specific problem - is it a know one ? Another problem I had was with SquirrelMail and gettext. I first compiled php with gettext support but the is_IS characters came out wrong (i.e. ö became "o). I know of others having the same problem and the only solution seems to be not to include gettext and having php do the localization. That is though, as stated on the SquirrelMail webpage, much more process intensive. Is there a simple solution to this, or is this a bug in php that I should report? And one more thing! When the user goes over quota, the left menu times out while executing a regexp match. I got timeouts in lines 71, 77 and 80 in functions/imap_general.php. The right window loads fine and the user can view and delete messages. I tried increasing the time limit in php to 50 secs, but to no avail. Anyone familiar with this ? SquirrelMail version 1.2 $plugins[0] = 'delete_move_next'; $plugins[1] = 'calendar'; $plugins[2] = 'smallcal'; $plugins[3] = 'change_mysqlpass'; $plugins[4] = 'disk_quota'; Thanks for your time, Bjorn Swift ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf -- squirrelmail-users mailing list List Address: [EMAIL PROTECTED] List Archives: http://sourceforge.net/mailarchive/forum.php?forum_id)95 List Info: https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
