iRule optimization / CPU usage monitor

What version are you running?

 

 

The [clock seconds] command can be detrimental to performance prior to v9.2. Have you tried removing that since I don't see where you even reference that index of the list (I'm not sure why you are even using a list since you only seem to utilize the sequence number in position 0). Perhaps that was something you haven't utilized yet? Anyway, definitely try removing that and see if it helps. It doesn't sound like you are running into a bottleneck based on CPU load.