Performance

Reading Large Files and Perf

One of the things that has often confused me is how little good advice there is for reading large files efficiently when writing code. Typically most people use whatever the canonical file read suggestion for their language is, until they need to read large files and it’s too slow. Then they google “efficiently reading large files in <lang>” and are pointed to a buffered reader of some sort, and that’s…

Left To My Own Devices – Fast NTCracking in Rust

When I got a new MacBook with an M1 Pro chip, I was excited to see the performance benefits. The first thing I did was to fire up hashcat which gave an impressive benchmark speed for NT hashes (mode 1000) of around 9 GH/s, a solid doubling of the benchmark speed of my old Intel MacBook Pro. But, when it came to actually cracking things, the speed dropped off considerably.…