Kernel Usage at 50% yet system idle process shows 100% idle.
Posted on 2009-07-15
My media server running XP Pro SP3 has been sluggish and every time I look in my task manager all processes across all users show 0% CPU usage, however the total CPU Usage is always 50% or so (split evenly across 2 cores, it's not just one core locked up)
I've tried procmon and system explorer but they all show the same thing, 50% overall CPU usage and everything in the process list shows 0%.
When I enabled "Show Kernel Times" in windows task manager and look at CPU usage graphs almost the entire graph is red so apparently 99% of this is happening inside the kernel.
Is there anyway to find out what threads it's running or get some kind of breakdown of the kernel's activity in terms of what is keeping it busy?