Negative ping times in Windows VM's - whats up?

re: Negative ping times in Windows VM's - whats up?

vijay — Sat, 15 Jan 2011 20:01:30 GMT

hi my vmware virtual machine ( win2k3 sp2) its shows uptime in neagtive.

re: Negative ping times in Windows VM's - whats up?

Bryce — Fri, 13 Aug 2010 18:51:42 GMT

I'm seeing this issue on a Windows Server 2008 R2 host machine running a Windows XP guest with 2 virtual processors. Anyone know if this has a hotfix from Microsoft?

re: Negative ping times in Windows VM's - whats up?

Tony — Wed, 17 Mar 2010 18:43:39 GMT

Does this problem exist with Windows Server 2008? We are noticing this problem on the Amazon EC instances with Windows Server 2008

[Tony's reply] This issue does not exist with Windows 2008 on Hyper-V. Amazon EC2 does not use Hyper-V do I cant really speak to the core issue.

re: Negative ping times in Windows VM's - whats up?

Troy — Thu, 17 Dec 2009 00:40:46 GMT

Hello,

I just bought a new Quad Core PC and am observing the same problem. Processor is Intel Core2 Quad CPU (Q9400 @ 2.66GHz). It has 4 cores.

I read about AMD requiring this fix and am not sure if Intel processors require the same fix.

Also, can changing to PM Timer have any side effects on performance?

Thanks!

re: Negative ping times in Windows VM's - whats up?

Greg Martin — Fri, 11 Sep 2009 18:59:02 GMT

This is a problem with Win2k3 domain member servers. Since ping is used to detect domain controllers, you get a Userenv event 1054 which stop Group policy processing

How to ensure reliable performance data from VM's when using multiple virtual CPU's.

Vista knowledge from the OEM team and others... — Thu, 19 Feb 2009 22:19:25 GMT

If you're running Windows Server 2003 in a Hyper-V VM and have the VM configured to use multiple virtual

Why does my Avg Disk Write / Sec counter keep climbing?

ALL TOPICS PERFORMANCE — Thu, 19 Feb 2009 07:55:29 GMT

There have been a number of issues with time in W2k3 guests, the first of which was covered in http://blogs.msdn.com/tvoellm/archive/2008/06/05/negative-ping-times-in-windows-vm-s-whats-up.aspx

Problems with QueryPerformanceCounter on Windows Server 2003 Multi-Processor Hyper-V guests? Here’s why.

Virtual Varia — Thu, 16 Oct 2008 02:03:50 GMT

A friend of mine from the Visual Studio group just came to me with an issue they’re having on some Windows

re: Negative ping times in Windows VM's - whats up?

eranb — Thu, 19 Jun 2008 12:20:06 GMT

Hi,

Is the PMTIMer virtualized per guest or is it routed (Via hyper-call) to a root partition reliable time source. If that is the case, what is the root partition time source (HPET,PMTimer,TSC,...)

Thanks,

Eran.

re: Negative ping times in Windows VM's - whats up?

eranb — Thu, 19 Jun 2008 12:20:06 GMT

Hi,

Is the PMTIMer virtualized per guest or is it routed (Via hyper-call) to a root partition reliable time source. If that is the case, what is the root partition time source (HPET,PMTimer,TSC,...)

Thanks,

Eran.