Fortigate disable IPS engines

Version: Fortigate-3240C v4.0,build4188,120620 (MR3)

FG3240C-HA# diag test application ipsmonitor 98
FG3240C-HA# diagnose sys top
Run Time:  1 days, 8 hours and 49 minutes
0U, 0S, 100I; 10956T, 6128F, 193KF
     proxyworker       80      S       0.0     0.9
          cw_acd      116      S       0.0     0.4
         cmdbsvr       57      S       0.0     0.4
          httpsd      168      S       0.0     0.3
          httpsd      122      S       0.0     0.3
       forticron       77      S       0.0     0.2
          httpsd       70      S       0.0     0.2
         miglogd       68      S       0.0     0.2
       scanunitd      130      S <     0.0     0.1
       scanunitd      124      S <     0.0     0.1
       scanunitd      128      S <     0.0     0.1
       scanunitd      129      S <     0.0     0.1
       scanunitd      125      S <     0.0     0.1
       scanunitd      126      S <     0.0     0.1
       scanunitd      127      S <     0.0     0.1
       scanunitd      123      S <     0.0     0.1
       scanunitd       73      S <     0.0     0.1
       urlfilter       79      S       0.0     0.1
       wad_diskd       72      S       0.0     0.1
          newcli     1525      R       0.0     0.1


# diag test application ipsmonitor IPS Engine Test Usage: (Values for >
1: Display IPS engine information
2: Toggle IPS engine enable/disable status
3: Display restart log
4: Clear restart log
5: Toggle bypass status
6: Submit attack characteristics now
97: Start all IPS engines
98: Stop all IPS engines
99: Restart all IPS engines and monitor

The most common command that we issue to deal with the IPS Engine running high is the following which restarts the IPS process:

# diag test application ipsmonitor 99

config ids process (default 8)
#config system global
    set proxy-worker-count 1
end

# diagnose debug crashlog clear
# diagnose debug crashlog get