My random Googling turned up a new hash function tonight:
"HighwayHash". It's a keyed hash function like the SipHash we now use
for hashing strings / bytes / etc for our lovely dicts.
Key points:
* Apache 2 license
* Can use SIMD
* "5x faster than SipHash"
I think they mean 5x faster than /their/ SipHash implementation, which
they claim is an optimized implementation (but IIUC doesn't use SIMD).
Source is here:
https://github.com/google/highwayhash
AFAICT they have multiple implementations to leverage different
processor features, but one is vanilla portable C** so it should run
everywhere Python 3 does. In fact it already has a Python 3 package
("pip3 install highwayhash-cffi") in case you want to play around with it.
Since the choice of SipHash is a private implementation detail, and
since we all like fast things, is it worth considering switching to
HighwayHash? Don't ask me, I'm only a release manager (for a version
nobody cares about anymore). These things are above my pay grade.
Cheers,
//arry/
** They claim it's "C90", which I gather is C89 for Europeans hipsters
who like obscure, withdrawn standards.
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