For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

dragonflymr's avatar
dragonflymr
Icon for Cirrostratus rankCirrostratus
Dec 08, 2015

iRule killing BIG-IP

Hi,   I have huge issue with iRule obviously killing BIG-IP 2000. In tests iRule logic works OK, but under load BIG-IP is overloaded.   Scenario:   BIG-IP no iRule, 30 to 40k concurrent con...
devops
irule optimization
iRules
LTM
performance
VernonWells's avatar
VernonWells
Icon for Employee rankEmployee
Dec 09, 2015

You are correct. As described here:

 

starting with 11.5 timing is enabled by default.

 

Looking at cpuinfo may be somewhat inaccurate because of how scheduling is performed by TMOS. Moreover, by default, the hyperthread cores are not used for tmm in 11.5.

 

Having said all of that, this number may be useful for a rough estimate.

 

In my crude formula, "events-per-second" is the peak number of events you see in practice on the system. If you wish to calculate it per-core, that's fine, too.