Forum Discussion
insert12_38638
Nimbostratus
NimbostratusCPU utilization 90%
Hello guys , just a quick note , i m suffering 90% high CPU utilization on our 8900 GTM which is quite alarming sign for our network , Interesting to figure out how we can control F5 CPU utilization , troublshooting steps , or suggestion to move on high series , As we are using several irules/scripts to control the flow of traffic. no additional software adds on rather than only general loadbalancing.
Any source material recomendation ?
case examples ??
/ insert
HamishCirrocumulus
First question is what's using all that CPU? top will show you.
GTM only? Or GTM & LTM?
On your iRules, do you have timing enabled?
What volume of traffic is hitting your 8900? bps and connections/sec.
H
insert12_38638GTM with LTM features also
Irules are enabled with timing
830 TPS were there at that while Spikes 90%
Top output will let u know soon .
It is not constant utlization on 90% , spikes come while on busy timing on our server. now after that settle down to normal 40%
any suggestion ?- HamishTo eliminate the iRules, What do the timings say on them? (You can grab the timings from the iRule Editor, or from bigpipe).
H