Category Archives: Investigative Reporting

24-core CPU and I can’t move my mouse

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 , , | 155 Comments

The Spoils of Law (Moore’s Law)–a New Laptop

I just got a new laptop. My old machine was more than six years old so it was probably overdue. I wanted to record some of the reasons for the upgrade, and the process, if only for myself, so here … Continue reading

Posted in Investigative Reporting, Rants | Tagged , , | 21 Comments

Power Wastage On An Idle Laptop

Ever since I upgraded to Windows 10 it’s felt like my battery life is worse. My suspicion was various scanning tasks that were springing to life more frequently, but it was just a hunch. So, I did what I do … Continue reading

Posted in Investigative Reporting, Performance, Programming, uiforetw, xperf | Tagged , | 32 Comments

Programming is Puzzles

When I’m describing what I do for a living to non-programmers I sometimes say that I solve puzzles. I solve fascinating puzzles that are different every day, and there’s no answer key, and very often nobody else knows the solution. … Continue reading

Posted in Investigative Reporting, Performance, Programming, Visual Studio | Tagged , , , | 11 Comments

Profiling the profiler: working around a six minute xperf hang

Anytime my computer is a little bit slow I’m likely to record a trace and take a quick look. If I’m lucky I’ll find an easy workaround, in which case I’ve got a potential blog post and a smoother running … Continue reading

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

Hidden Costs of Memory Allocation

It’s important to understand the cost of memory allocations, but this cost can be surprisingly tricky to measure. It seems reasonable to measure this cost by wrapping calls to new[] and delete[] with timers. However, for large buffers these timers … Continue reading

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

Slow Symbol Loading in Microsoft’s Profiler, Take Two

When I run into a problematically slow program I immediately reach for a profiler so that I can understand the problem and either fix it or work around it. This guidance applies even when the slow program is a profiler. … Continue reading

Posted in Investigative Reporting, xperf | Tagged , , , , | 20 Comments