Regarding tracelog/tracerpt and time units

NTDEV
1

Hi all,

I am running tracelog/tracerpt in an attempt to (hopefully) track down a driver on the system that is spending too long in an ISR or DPC. I have a nicely formatted HTML page from tracerpt with the ISR/DPC time distributions, but the ranges have no units on them. Are these values in terms of milliseconds? Microseconds? Ticks of KeQueryPerformanceCounter()? I did a really cursory search through the documentation, but to no avail.

I find these to be extremely valuable tools, but my one piece of feedback for Microsoft engineers is to clearly label the units of time in the report.

Thanks,
Curtis Petersen

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2

Curtis Petersen wrote:

I am running tracelog/tracerpt in an attempt to (hopefully) track down a driver on the system that is spending too long in an ISR or DPC. I have a nicely formatted HTML page from tracerpt with the ISR/DPC time distributions, but the ranges have no units on them. Are these values in terms of milliseconds? Microseconds? Ticks of KeQueryPerformanceCounter()? I did a really cursory search through the documentation, but to no avail.

I find these to be extremely valuable tools, but my one piece of feedback for Microsoft engineers is to clearly label the units of time in the report.

This page seems to indicate that they are microseconds:
http://msdn2.microsoft.com/en-us/library/ms797921.aspx

–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.