News for hackers. Stuff that matters.

A comment on Fast Inverse Square Root. Parent comment

Re:Fast Inverse Square Root by nurettin on Tuesday November 03, 2020 @06:03AM (#24978468)
> If only 1% of cpu time was spent on slow square root, and this sped it up by 100%, it would be barely worth it.

If you can do 10,000 things with 1% cpu time, and you are now able to do 5,000 more things, is it still not worth it?

[ Parent | on HN ]
Re:Fast Inverse Square Root by hurrrrrrrr on Tuesday November 03, 2020 @08:35AM (#24979485)
In isolation, no. You could instead spend your time optimizing something else that's currently slower and speed that up instead.
[ Parent | on HN ]