Tag Archives: WIndows 10

Taskbar Latency and Kernel Calls

Posted on September 8, 2019 by brucedawson

I work quickly on my computer and I get frustrated when I am forced to wait on an operation that should be fast. A persistent nuisance on my over-powered home laptop is that closing windows on the taskbar is slow. … Continue reading →

Posted in Investigative Reporting, Performance, uiforetw, xperf | Tagged , , , | 35 Comments

What is Windows *doing* while hogging that lock

Posted on July 27, 2017 by brucedawson

Earlier this month I wrote about how Windows 10 holds a lock during too much of process destruction, which both serializes this task and causes mouse-cursor hitches and UI hangs (because the same lock is used for these UI tasks). … Continue reading →

Posted in Investigative Reporting, uiforetw, xperf | Tagged , , | 12 Comments

24-core CPU and I can’t move my mouse

Posted on July 9, 2017 by brucedawson

This story begins, as they so often do, when I noticed that my machine was behaving poorly. My Windows 10 work machine has 24 cores (48 hyper-threads) and they were 50% idle. It has 64 GB of RAM and that … Continue reading →

Posted in Investigative Reporting, uiforetw, xperf | Tagged , , | 214 Comments

New Xperf and new WPA in the new WPT

Posted on August 10, 2015 by brucedawson

A new version of Windows means a new version of the Windows Performance Toolkit (WPT), the ship vehicle for xperf, WPA and other Event Tracing for Windows (ETW) tools. I’m a huge fan of xperf/ETW (just look at some of … Continue reading →

Posted in Symbols, xperf | Tagged , , , | 4 Comments

Graph All the Things (Using WPT 10)

Posted on August 3, 2015 by brucedawson

Event Tracing for Windows (ETW) has always recorded a rich set of data and allowed graphing it all on the same timeline. With the creation of UIforETW (which records more data) and the new* ETW trace viewer (which can graph … Continue reading →

Posted in Performance, Programming, xperf | Tagged , , , , , , | 15 Comments