Last week I wrote about the performance consequences of inadvertently loading gdi32.dll into processes that are created and destroyed at very high rates. This week I want to share some techniques for digging deeper into this behavior, and the odd … Continue reading
Windows has long had a reputation for slow file operations and slow process creation. Have you ever wanted to make these operations even slower? This weeks’ blog post covers a technique you can use to make all file operations on … Continue reading
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
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
TL;DR – I can finally record CPU performance counters for processes on Windows. I’m mostly a Windows developer but I’ll occasionally fire up my Linux box to use the perf tool to examine CPU performance counters. Sometimes you really need … Continue reading
A bit over three years ago I wrote about how to use flame graphs to visualize CPU Usage (Sampled) data from ETW, and a year ago I added flame graph support to UIforETW. However these techniques are clumsy and slow … Continue reading
A few months ago I wrote about how many processes on my system were waking up and wasting CPU time for no good reason, thus wasting battery power, electricity, and CPU power. I was surprised that nobody called me out … Continue reading
