Community website for ChibiHash

[thevilledev]

I was thinking of creating detailed reports on implementation details with Rust vs. C and v1 vs. v2. I just couldn't figure out what would be the best place to store them or possibly discuss about them. So I created an informational website around the topic:

• Website at chibiha.sh
• Website content at thevilledev/chibiha.sh

Contributions are welcome!

[N-R-K]

Cool.

Though I wouldn't show the v1 and v2 benchmarks side by side, since the methodology were different (notice how city64 has ~15GiB/s on v1 and 18GiB/s on v2). This is because v1 benchmark was done using original smhasher, while v2 was redone with smahasher3.

smhasher (and smhasher3) doesn't use wall clock time for it's benchmark but instead uses rdtsc which measures in clock cycles. smhasher normalizes the clock cycles to 3Ghz while smhasher3 normalizes them to 3.5Ghz, hence the vastly different numbers.

For reference, on smhasher3, I get the following number on chibihash v1 and v2, measured just now:

version	bulk	small
v1	22.65 GiB/sec	42.16 cycles/hash
v2	24.25 GiB/sec	34.55 cycles/hash

[thevilledev]

Good points and thanks for the smhasher3 results. I refined the benchmarks page based on this. The v1/v2 benchmarks I had in mind were mostly for Rust and in a comparable environment, and with pure Rust implementations vs. the original ones over FFI. Should be interesting.

[N-R-K]

Added the site link at the end of #4