KeQueryPerformanceCounter

WINDBG
1

KeQueryPerformanceCounter returns the performance counter value in units of ticks.

what is the value of one tick?

Thanks,
Amogha

2

How is this related to WinDBG?

-scott

–
Scott Noone
Consulting Associate and Chief System Problem Analyst
OSR Open Systems Resources, Inc.
http://www.osronline.com

wrote in message news:xxxxx@windbg…

KeQueryPerformanceCounter returns the performance counter value in units of
ticks.

what is the value of one tick?

Thanks,
Amogha

3

I am using this in my miniport driver. Hence wanted to know.

Thanks

4

It still isn’t related to debugging kernel code which is what this list is
for. Of course if you read the documentation you would see that you can
pass an argument to the routine to get the frequency of ticks.

Don Burn (MVP, Windows DKD)
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@gmail.com
Sent: Thursday, March 24, 2011 7:02 AM
To: Kernel Debugging Interest List
Subject: RE:[windbg] KeQueryPerformanceCounter

I am using this in my miniport driver. Hence wanted to know.

Thanks

WINDBG is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

5

1/Performance frequency
RTFM
joe

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@gmail.com
Sent: Thursday, March 24, 2011 5:41 AM
To: Kernel Debugging Interest List
Subject: [windbg] KeQueryPerformanceCounter

KeQueryPerformanceCounter returns the performance counter value in units of
ticks.

what is the value of one tick?

Thanks,
Amogha

WINDBG is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

–
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

6

Thank you