The QM process occupy a lot of cpu resource,and i don't do any data analysis except the realtime page.What cause it？
top - 18:01:13 up 14 days, 9:18, 1 user, load average: 3.31, 3.69, 4.76
Tasks: 172 total, 1 running, 171 sleeping, 0 stopped, 0 zombie
Cpu(s): 23.6%us, 3.2%sy, 0.0%ni, 66.7%id, 4.2%wa, 1.5%hi, 0.9%si, 0.0%st
Mem: 3364968k total, 2952096k used, 412872k free, 50520k buffers
Swap: 779144k total, 19024k used, 760120k free, 384312k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8047 root 25 0 1504m 1.2g 13m S 102.1 38.2 530:20.26 java
20923 asterisk 15 0 179m 129m 6524 S 88.5 4.0 878:45.05 asterisk
31157 asterisk 15 0 261m 251m 2248 S 21.0 7.6 1255:45 op_server.pl
20526 root 15 0 2332 1060 796 R 0.3 0.0 0:00.06 top
1 root 15 0 2068 628 540 S 0.0 0.0 0:02.12 init
2 root RT -5 0 0 0 S 0.0 0.0 0:00.26 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.02 ksoftirqd/0
4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT -5 0 0 0 S 0.0 0.0 0:00.51 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1
7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root RT -5 0 0 0 S 0.0 0.0 0:00.28 migration/2
9 root 37 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2
10 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/2
11 root RT -5 0 0 0 S 0.0 0.0 0:00.54 migration/3
12 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/3
13 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/3
