trick to keep CPU utilization low and gns not crashing

Trick to keep CPU utilization low in GNS3

don't let your routers go back to idle state

1> get an idle PC value

2> to make sure..it does not use CPU utilization suddenly in middle of configuration.

>en
# conf t
# line console 0
# no exec-timeout

This will resolve the sudden spike of the CPU. Use already extracted IOS to boot it in GNS3.

Also please do not use 2600 series router images in GNS3, my GNS3 crashed frequent. Tried to google but not much help.