5 ms·
> at the very most, 8x faster. Where does that number come from? My current desktop has 32 logical cores and it has been a few years since I bought that one.
by josefx 3y ago
> at the very most, 8x faster.
Where does that number come from? My current desktop has 32 logical cores and it has been a few years since I bought that one.
- alecmg 3y agomaybe its a reference to Amdahl's law? If you can parallelise 90% of your code, you get only 10x improvement even on infinite number of cores
- josefx 3y agoYou mix up time and code. You don't have to parallelize 100% of your code to scale with cores, you only have to parallelize the code that your software spends most of its time executing and that is often significantly less than 90%.