[cisco-voip] Higher CPU usage with OS 2000.4.3a than 2000.2.7

[Wes Sisk]

Was the OS upgrade the only change?

Simon, Bill wrote:
> Upgraded CallManagers and IPCC from OS 2000.2.7 with sr to 2000.4.3a 
> last weekend.  Very smooth, no problems.
>
> We're noticing some new trends in CPU usage and I have a TAC engineer 
> checking it out but so far he hasn't come back with any answer. The 
> publisher is overall using less CPU (hooray!) but the subscribers have 
> overall HIGHER CPU usage.  We basically have our subscribers "at the 
> limits" right now in terms of registered phones so any changes in CPU 
> usage are getting a lot of scrutiny.  Any ideas why the CPU might be 
> higher just from applying these OS patches?
>
>