Apache using 100% CPU for command rt-server.fcgi

Hi All,

I am using RT 4.4 on Ubuntu 14.04.05 LT with 50GB HDD and 8 GB RAM.

Whenever we start the Helpdesk application the Apache consumes almost 90% of the CPU and memory and slows down the application.

PID USER PR NI VIRT RES SHR S %CPU %MEM
20788 www-data 20 0 318m 18m 3984 R 100 0.0

Also, the memory though allotted 8GB, it shows only 1007MB free

         total       used       free     shared    buffers     cached

Mem: 8095 7087 1007 1 98 464
-/+ buffers/cache: 6524 1570

Can anyone guide me how to fix this.

Thanks,

Binu Pillai.