Take the 2-minute tour ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

I have a rather loaded Windows 2003 server. It's mainly loaded with IIS instances (about 6 or 7 w3wp processes) and some sharepoint stuff. The machine was P2V-ed from a real host and now resides on a much more powerful host under Windows Server 2008 as a Hyper-V guest. 2 Xeon 3.0 processors are emulated with 4 GB for the machine (the host itself is 8-cored with 16 GB). No more guest VMs reside on the host for now.

The problem is performance. The server is rather highloaded and consumes 60-70% of CPU, memory is not an issue. But I'm confused that 25% of CPU are consumed for Hardware Interrupts. Using kernview, I can see that intelppm is making the most of them. My question is - what can be the reason of that? Can I turn off intelppm through the registry, will the server work? I'm a little afraid to experiment on a production server and need some advice.

share|improve this question

1 Answer 1

Looks like there might have been some problems with this before: Virtual PC Guy Blog - Note that Ben is suggesting disabling the driver in the registry, and that MS was researching automatically disabling this. This might just be a remnant of your P2V migration.

share|improve this answer
    
Yes, I saw that blog, just wanted to know if someone has done it already to be sure there aren't much problems with turning it off... I can't afford much downtime for that server. –  Speedimon Aug 12 '09 at 6:44
    
Get your self a maintenance window this weekend and try it. The driver is used to write microcode to the CPU, so you shouldn't have any issues with it disabled. –  Christopher_G_Lewis Aug 12 '09 at 13:48

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.