[duskwuff]

> e.g. for video codecs not even C et al. cut it, you have to do assembly

This is largely inaccurate. Video encoders/decoders are typically written in C, with some use of compiler intrinsics or short inline assembly fragments for particularly "hot" functions.

[Cthulhu_]

Exactly, and they only decided to write those bits in assembly when they identified it as a hot code path AND the assembly outperformed any C code they could come up with.

The times that assembly outperforms a higher level language has reduced as well over time, with compiler and CPU improvements over time.

[kaba0]

Which is not in disagreement with my comment/take.

[kaba0]

I was talking about those hot functions only, not the rest of the program. But yeah a “sometimes” or a “may” would have helped in my original sentence.