System Time Accounting Incorrect for Software iSCSI
Details
Why do some virtual machines get a different amount of CPU time
than what is set for them?
Solution
Resource management settings (reservation, limit, and shares)
for virtual machines using software iSCSI might not be completely
effective. Some virtual machines might get more or less CPU time than
is set for them. If virtual machines using software iSCSI participate
in a DRS cluster, accurate DRS resource allocations, recommendations,
and migrations might be affected.
The reason is that CPU time consumed processing iSCSI I/O on
behalf of a virtual machine is not charged correctly to the virtual
machine.
