Larry Hastings <la...@hastings.org> added the comment:
For what it's worth, I spent some time producing clean benchmarks. All these
were run on the same laptop, and all pre-load the same file (406668786 bytes)
and run one update() on the whole thing to minimize overhead. K12 and BLAKE3
are using a hand-written C driver, and compiled with both gcc and clang; all
the rest of the algorithms are from hashlib.new, python3 configured with
--enable-optimizations and compiled with gcc. K12 and BLAKE3 support several
SIMD extensions; this laptop only has AVX2 (no AVX512). All these numbers are
the best of 3. All tests were run in a single thread.
-----------------+----------+----------+----+-----------------------
hash algorithm|elapsed s |mb/sec |size|hash
-----------------+----------+----------+----+-----------------------
K12-Haswell 0.176949 2298224495 64 24693954fa0dfb059f99...
K12-Haswell-clang 0.181968 2234841926 64 24693954fa0dfb059f99...
BLAKE3-AVX2-clang 0.250482 1623547723 64 30149a073eab69f76583...
BLAKE3-AVX2 0.256845 1583326242 64 30149a073eab69f76583...
md4 0.37684668 1079135924 32 d8a66422a4f0ae430317...
sha1 0.46739069 870083193 40 a7488d7045591450ded9...
K12-clang 0.498058 816509323 64 24693954fa0dfb059f99...
BLAKE3 0.561470 724292378 64 30149a073eab69f76583...
K12 0.569490 714093306 64 24693954fa0dfb059f99...
BLAKE3-clang 0.573743 708800001 64 30149a073eab69f76583...
blake2b 0.58276098 697831191 128 809ca44337af39792f8f...
md5 0.59936016 678504863 32 306d7de4d1622384b976...
sha384 0.64208886 633352818 96 b107ce5d086e9757efa7...
sha512_224 0.66094102 615287556 56 90931762b9e553bd07f3...
sha512_256 0.66465768 611846969 64 27b03aacdfbde1c2628e...
sha512 0.6776549 600111921 128 f0af29e2019a6094365b...
blake2s 0.86828375 468359318 64 02bee0661cd88aa2be15...
sha256 0.97720436 416155312 64 48b5243cfcd90d84cd3f...
sha224 1.0255457 396538907 56 10fb56b87724d59761c6...
shake_128 1.0895037 373260576 32 2ec12727ac9d59c2e842...
md5-sha1 1.1171806 364013470 72 306d7de4d1622384b976...
sha3_224 1.2059123 337229156 56 93eaf083ca3a9b348e14...
shake_256 1.3039152 311882857 64 b92538fd701791db8c1b...
sha3_256 1.3417314 303092540 64 69354bf585f21c567f1e...
ripemd160 1.4846368 273918025 40 30f2fe48fec404990264...
sha3_384 1.7710776 229616579 96 61af0469534633003d3b...
sm3 1.8384831 221198006 64 1075d29c75b06cb0af3e...
sha3_512 2.4839673 163717444 128 c7c250e79844d8dc856e...
If I can't have BLAKE3, I'm definitely switching to BLAKE2 ;-)
----------
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<https://bugs.python.org/issue39298>
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