2 ms·
Yes indeed. But it will only add the fences where needed whereas on x86 it basically has implicit fences everywhere which is clearly worse.
by IshKebab 2y ago
Yes indeed. But it will only add the fences where needed whereas on x86 it basically has implicit fences everywhere which is clearly worse.
- adgjlsfhk1 2y agoit's not actually that clear. hardware can do some pretty neat tricks to make the fences basically free when there aren't multiple cores writing to the same memory. as a result, most of those explicit fences are just extra front end pressure.