We have recently switched from apache to litespeed. (Server = 1 gig ram, 2.4 ghz CPU, raid 0 disks) despite the fact that I'm setting max. child php threads to 60 and launch the site, the ram is being consumed minute by minute until it's all gone. A simple math; Every litespeed thread takes up about 7 mb's of RAM, times 60, 7 X 60 = 420 MB of RAM should be used.(and this is true only at the start) I'm tracking RAM usage with top, the 7 mb part for each thread goes steady, however the total used memory is not! Is there a memory leak in this web server? TIA. ps: site is very loaded, about 1.2 million page views a day. ps2: server is also running tux(kernel based webserver),nothing else.