Please don't top post. Please do read the mailing list posting guidelines. >>> Thanks for your suggestions. >>> I have added apc and turned off filtes plugin, but httpd instances keeps >>> on taking memory. >>> Look how they are now: >>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >>> 17141 apache 15 0 259m 218m 12m S 0.0 6.6 0:15.48 httpd >>> 15329 apache 15 0 243m 202m 12m S 0.0 6.2 0:12.94 httpd >>> .... >>> >>> What else could I do? >>> >> >> Disable "Show all" link on large folders >> http://www.nabble.com/How-to-disable-%22Show-all-messages%22-option-to20447037.html#a20487576 >> >> Set memory limits in php.ini >> > > I have disabled "show all" on large folders, and we have set memory limit to > 20MB on php.ini( > with less memory we got memory errors on error_log). One additional > information is that our server has > 4 GB of RAM > We have also reduced httpd instances but problem still remain. May be a bug > on httpd or php? That'd be my guess - or more specifically, that the *compilation* thereof has something funny in it. There is a newer version of Apache available, but your PHP is what I'd look at upgrading first, as it is further behind. If you want to try to narrow it down with SquirrelMail, you'll probably need to test in a more controlled environment where you know what the users are actually clicking. Did you confirm you turned off thread sort and turned on server side sort? Did you test with all plugins disabled? Are you running other PHP applications? > Our versions are: > httpd-2.2.3- > php-5.1.6-23.222 ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p ----- 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