[not-elite]

Same here, mostly doing math stuff on x86.

There was a recent thread [1] optimizing some very primitive trig functions.

I recently watched a djb interview where he talked about the importance of fully utilizing available hardware [2 at 5:15]. That can be a good starting point, although at work its usually easier to just consume more resources than to use what you've got more efficiently.

[1] https://news.ycombinator.com/item?id=28209097

[2] https://www.youtube.com/watch?v=1svxNxG6hHc