Performance and Diagnostics

Controlling the event session name with the instance name

Sowoon PyoJanuary 27, 2021Jan 27, 202101/27/21

In this post, I explained what the session name is in ETW and how to set the session name through WPR with the instancename option.

Windows Performance Analyzer – Table & Graph Configurations (Part 1)

Tristan GibeauJanuary 15, 2021Jan 15, 202101/15/21

In the previous post, we discussed a brief intro into Windows Performance Analyzer (WPA) and its feature set. WPA can display trace data in a wide array of formats, most of which are pre-configured as presets designed for drilling into specific data points. Here is one for example: WPA's CPU Usage (Sampled) table has a few different ...

Authoring Custom Profiles – Part 2

Sowoon PyoDecember 10, 2020Dec 10, 202012/10/20

In this post, we enhance the simple custom profile for WPR by adding the system tracing session. Because kernel events provide critical information about processes, threads, modules, and more, collecting the system events greatly extends your ability to analyze traces and diagnose issues.

Authoring custom profiles – Part 1

Sowoon PyoNovember 10, 2020Nov 10, 202011/10/20

This is the first post in a multi-part series about authoring custom profiles for Windows Performance Recorder (WPR.) In a previous post, we have looked at how to start a trace with built-in profiles. The built-in profiles offer wide variety of preset profiles that we can use for different scenarios. There are built-in profiles for CPU ...

WPR Start and Stop Commands

Sowoon PyoOctober 6, 2020Oct 6, 202010/6/20

In this post, we show how to start and stop the trace using WPR. The first step is doing 'wpr -help start'. The command parameters seems to be cryptic. We explain those parameters in detail with examples.

Windows Performance Analyzer “WPA” Intro

Tristan GibeauSeptember 29, 2020Sep 29, 202009/29/20

If you do a search online for WPA, you might find information for protecting your Wi-Fi, but that is a different type of WPA. In the performance & diagnostics space WPA stands for Windows Performance Analyzer, a friendly but intricate UI that allows for developers and analyst to deep dive into performance traces captured on Windows (and...

WPR Intro

Sowoon PyoSeptember 16, 2020Sep 16, 202009/16/20

This is the first blog post about WPR. WPR is an acronym for Windows Performance Recorder. This post introduces list of acronyms that are used commonly performance tools, installation steps, the difference between WPR and WPRUI, and finally about the instance name and the error.