3 ms·
Aren’t all speedups 3 digit percentage? As in 100% or more? Did you mean 100x?
by russianGuy83829 4y ago
Aren’t all speedups 3 digit percentage? As in 100% or more? Did you mean 100x?
- tim-- 4y agoA three digit percentage means at least a quarter of the time, but possibly more. Something that is 50% faster will take half the time. Something that is 100% faster will take a quarter, and so on.
- anonymoushn 4y agoSomething that is 50% faster takes 2/3 as long sir.
- hvs 4y agoYou are correct, but I would also point out that I have to think long and hard about this whenever it comes up.
- why_only_15 4y agoI think when people measure speedups here they deduct the first 100%, e.g. if I used to be able to process 10 items per second and can now process 20 items per second you can run 200% as fast but it's a 100% speedup.
- janwas 4y agoTo avoid the various ambiguities here, I learned to express speedups as a ratio of the optimized throughput, divided by the baseline throughput. Or equivalently: the baseline time divided by optimized time. 4400 MB/s vs 800 MB/s = 5.5x speedup or 5.5 times as fast.