3 ms·
Using MMIO is cheating and makes the results very boring. It would be much more interesting to know the results if you're only allowed to use main memory.
by IshKebab 3mo ago
Using MMIO is cheating and makes the results very boring.
It would be much more interesting to know the results if you're only allowed to use main memory.
- Lockal 3mo agoI'm not sure how to properly measure DRAM access, but for register/immediate-only instructions there is https://uops.info/table.html https://uops.info/table.html. It does not measure x87 transcendentals (I guess because microcode results in different performance), but CPUID is a notable mention.