6 ms·
They likely benchmarked it on a 32 core system. Like a dual Opteron board. If the task was single-threaded before a 32-fold improvement is reasonable.
by noxin 10y ago
They likely benchmarked it on a 32 core system. Like a dual Opteron board. If the task was single-threaded before a 32-fold improvement is reasonable.
- pedrocr 10y agoIt's very difficult to get a 32x speedup from 32 cores as there are always parts that are inherently serial, so it's more likely they tested it on a 64 core machine or something like that.
- jelder 10y agoYes, this is thanks to Amdahl's Law. https://en.wikipedia.org/wiki/Amdahl%27s_law https://en.wikipedia.org/wiki/Amdahl%27s_law