Comments (3)
ogxd
commented on May 31, 2024
From what I can see there is a compiler optimization that stack allocates [0i8; VECTOR_SIZE] instead of heap allocating (probably because VECTOR_SIZE is a constant), so MaybeUninit<State> may not be faster.
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ogxd
commented on May 31, 2024
About to close this one unless someone has some snippet to propose?
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notsatvrn
commented on May 31, 2024
I tried using a struct which contains only the byte array and is marked as #[repr(align(16))]. I have not tested the performance yet, but this should still allocate on the stack and force 16-byte alignment.
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Related Issues (20)
- How to use AVX2 only for hashmap/set, and use stable hash for hash128/64/32 HOT 12
- how to use AVX2 only for hashmap/set οΌand use stable hash for hash128
- Tracking: missing compatibility with `std::HashMap` & `std::HashSet` HOT 5
- Hybrid state gxhash HOT 12
- Major bug: out of bounds read for some input sizes HOT 1
- Primitives specialization for Hasher HOT 4
- cargo bench --no-fail-fast -F=avx2 failed HOT 9
- Quality issue: permutations produce the same hashes? HOT 4
- Latency benchmarks HOT 6
- Add fallback for platforms without AES acceleration
- Readme image link broken HOT 1
- error[E0432]: unresolved import `platform` HOT 13
- how many bytes use write() each time that are most efficient?
- Only hit the RNG once per thread HOT 1
- terminated by signal SIGILL (Illegal instruction) HOT 4
- build script is wrong HOT 2
- write(&[1u8]) and write_u8(1) yield different hashes HOT 1
- Make the algorithm more DOS resistant? HOT 1
- Change i64 seed to u64 HOT 1
- Feature request: add GxBuildHasher::with_seed
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