[nikoc1337]

Originally Posted by webizen

run 'top -c' from command line and see how much system load and which process consume most cpu cycles.

top - 06:38:15 up 23:07,  1 user,  load average: 0.53, 0.48, 0.40
Tasks: 204 total,   2 running, 202 sleeping,   0 stopped,   0 zombie
Cpu(s):  8.6%us,  0.5%sy,  0.0%ni, 90.9%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   8151976k total,  2661480k used,  5490496k free,   251572k buffers
Swap: 10190840k total,        0k used, 10190840k free,  1602312k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 1085 nobody    16   0  164m  37m 8336 S 11.0  0.5   0:31.80 lsphp5:/home/igtrai
  589 nobody    16   0  170m  43m 8308 S 10.6  0.5   0:33.23 lsphp5             
 1062 nobody    16   0  164m  37m 8272 S 10.3  0.5   0:15.52 lsphp5:/home/igtrai
 3970 mysql     15   0 1186m 239m 5644 S  8.6  3.0  53:54.18 /usr/sbin/mysqld --
31509 nobody    16   0  171m  44m 8356 S  8.0  0.6   2:38.78 lsphp5             
29789 nobody    16   0  165m  38m 8316 S  7.3  0.5   2:29.64 lsphp5             
 1495 nobody    16   0  154m  27m 7696 S  4.7  0.3   0:00.14 lsphp5             
31797 nobody    16   0  165m  38m 8324 R  4.3  0.5   2:39.47 lsphp5:/home/igtrai
32729 nobody    16   0  164m  38m 8316 S  3.7  0.5   0:53.18 lsphp5             
  676 nobody    16   0  170m  43m 8320 S  3.0  0.6   0:45.86 lsphp5:/home/igtrai
 1494 root      15   0 12764 1184  832 R  0.3  0.0   0:00.02 top -c             
20105 nobody     0 -19 38404  17m 1912 S  0.3  0.2   2:49.93 litespeed (lshttpd)

I can't udnerstand why is it lagging sometimes. any suggestions?