QueryPerformanceCounter stays within a 4.7 second range, advancing at the correct rate for ~4.7 seconds, then jumping back 4.7 seconds
Applications stop responding
Negative ping times
Cause
When /usepmtimer is specified in boot.ini for Windows 2003 and Windows XP SMP HALs, QueryPerformanceCounter does not behave properly. Instead of advancing monotonically, it advances correctly for 4.7 seconds, then jumps backward 4.7 seconds, repeating this in a loop endlessly.
Resolution
This issue is resolved for Windows 2003 in vSphere 5.0 Update 1. However, the issue still persists in Windows XP.
To work around this issue, avoid specifying /usepmtimer in the boot.ini file when using Windows 2003 or Windows XP with an SMP HAL.
Note: The preceding links were correct as of June 21, 2013. If you find the link is broken, provide feedback and a VMware employee will update the link.