Marek Majkowski, David Wragg

2 articles by Marek Majkowski, David Wragg.

Branch predictor: How many "if"s are too many? Including x86 and M1 benchmarks!

Is it ok to have if clauses that will basically never be run? Surely, there must be some performance cost to that...

Marek Majkowski, David Wragg·May 6, 2021Performance

Why is there a "V" in SIGSEGV Segmentation Fault?

My program received a SIGSEGV signal and crashed with "Segmentation Fault" message. Where does the "V" come from? Did I read it wrong? Was there a "Segmentation *V*ault?"? Or did Linux authors make a mistake? Shouldn't the signal be named SIGSEGF?

Marek Majkowski, David Wragg·June 18, 2020Systems