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r905
2010 Jan 21
2
Windows Xen VM's have high guest CPU usage and poor performance
...if I only
have one VM running.
I now have 32 VM's running on the machine and dom0's cpu usage as
reported by xm top is 622%. It seems like Xen is just performing poorly
while handling these Windows VMs. Any suggestions? I have Windows VM's
on other hardware (typically PowerEdge R905s and R710s and they seem ok).
This 2950 is a decent machine.. 32G RAM, 2x Xeon E5405 (quad core) at
2ghz. And I'm only allocating 1 CPU and 768MB RAM for each VM.
Sample config:
name = "win01n"
maxmem = 768
memory = 768
vcpus = 1
builder = "hvm"
kernel = "/usr/lib/x...