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Improve performance of HashBuckets using bit operation #84

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samchon opened this issue Dec 19, 2020 · 0 comments
Open

Improve performance of HashBuckets using bit operation #84

samchon opened this issue Dec 19, 2020 · 0 comments
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enhancement New feature or request

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samchon commented Dec 19, 2020

Change the hash buckets not to using the mod (%) operator but the bitwise and (&) operator . If size of the hash buckets always be multiple of 2, the ^ operation can replace the % operation and it can reduce elapsed time about 10 percent.

Modulo and Division vs Bitwise Operations

https://mziccard.me/2015/05/08/modulo-and-division-vs-bitwise-operations/
@samchon samchon added the enhancement New feature or request label Dec 19, 2020
@samchon samchon self-assigned this Dec 19, 2020
samchon pushed a commit that referenced this issue Dec 28, 2020
Fixing #83, Fix #82 and Fix #84
1480fbd
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