4 ms·
Not memory speed but extremely fast: https://github.com/powturbo/TurboHist https://github.com/powturbo/TurboHist
by powturbo 7y ago
Not memory speed but extremely fast: https://github.com/powturbo/TurboHist https://github.com/powturbo/TurboHist
- vardump 7y agoYeah, it's nice, about what you can achieve. I'd be happy if it was about 8 times faster. Less than 0.2 cycles per byte would be good. Unfortunately, that's just not achievable with current x86 instruction set.
- powturbo 7y agoThere is new AVX512 instruction (_mm512_conflict_epi32) supposed to solve this, but it can't make the histogram construction faster than the scalar functions.