Tag Archives: summary tables

The Lost Xperf Documentation–Disk Usage

As I’ve lamented previously, the documentation for xperf (Windows Performance Toolkit) is a bit light. The names of the columns in the summary tables can be exquisitely subtle, and I have never found any documentation for them. But, I’ve talked … Continue reading

Posted in Documentation, Performance, xperf | Tagged , | 14 Comments

The Lost Xperf Documentation–CPU Usage (Precise)

As I’ve mentioned previously, the documentation for xperf (Windows Performance Toolkit, also known as ETW) is pretty weak. In this post I’m going to attempt to explain the meaning of the extremely subtle and non-obvious columns in the CPU Usage … Continue reading

Posted in Documentation, Performance, Programming, xperf | Tagged , , , | 31 Comments

The Lost Xperf Documentation–CPU sampling

Xperf (Windows Performance Toolkit, also known as ETW) is a powerful tool for investigating performance issues, however it is a challenging tool to use. Some of this difficulty comes from intrinsic complexity – in order to fully investigate thread scheduling … Continue reading

Posted in Documentation, Performance, Programming, xperf | Tagged , , , | 21 Comments

Xperf Wait Analysis–Finding Idle Time

The Windows Performance Toolkit, also known as xperf, is a powerful (and free!) system-wide Windows profiler. In the past I’ve talked about using xperf to identify slowdowns in PowerPoint (tutorial version is here) by using xperf’s built-in sampling profiler, but … Continue reading

Posted in AltDevBlogADay, Investigative Reporting, Performance, Programming, xperf | Tagged , , , , , , , | 46 Comments