3 ms·
It's unclear why one would ever need to do this. Is it for power savings? What other use-cases would benefit from turning the FPU off between instructions?
by glitchc 6mo ago
It's unclear why one would ever need to do this. Is it for power savings? What other use-cases would benefit from turning the FPU off between instructions?
- russdill 6mo agoThere is overhead, and applications that don't use the FPU avoid that overhead. https://www.netbsd.org/docs/kernel/lazyfpu.html https://www.netbsd.org/docs/kernel/lazyfpu.html
- Neywiny 6mo agoYes, for power savings. But I'd need to do a bit of a study on my code to see if it's even worth it. Since the majority of it doesn't use the FPU, it could help. But it might not be worth the effort.