On: Make your program slower with threads (2014)

[foobiekr]

Sadly, this no longer really applies. Programmers today do absolutely grotesque things unimaginable to Knuth of that era. One look at any modern pipeline that converts to and from JSON a dozen times, sometimes even inside the same process between modules, would make Knuth recall all of that.

Programmers now have done the impossible: written code so consistently bad that there are no hotspots, because the whole codebase is non-performant trash.

[hindsightbias → foobiekr]

I was going to get a t-shirt printed with “Knuth Was Wrong”

We’re going to be in a world of hurt when the newest process node doesn’t save us.

[rerdavies → foobiekr]

Knuth was right! Profiling would indicate whether your JSON serialization/deserialization is actually a problem. Maybe it is. Maybe it isn't.