is there any reason to use SuperFastHash in druntime? (exceptspeed)
Daniel Kozák via Digitalmars-d
digitalmars-d at puremagic.com
Fri May 29 02:52:58 PDT 2015
A little bit faster than murnurhash3 in my scenerio. But I prefer farmhash. http://code.google.com/p/farmhash/
----- Původní zpráva -----
Od:"Martin Nowak via Digitalmars-d" <digitalmars-d at puremagic.com>
Odesláno:29. 5. 2015 11:41
Komu:"digitalmars-d at puremagic.com" <digitalmars-d at puremagic.com>
Předmět:Re: is there any reason to use SuperFastHash in druntime? (exceptspeed)
On Thursday, 28 May 2015 at 03:09:07 UTC, ketmar wrote:
> i think
> that there is some sense in trading some speed for better
> distribution.
> what do you think?
We discussed most part of this already.
http://forum.dlang.org/post/mff4id$hj8$1@digitalmars.com
And we're already using MurmurHash3 for the new CTFEable hash
function.
https://github.com/D-Programming-Language/druntime/blob/master/src/core/internal/hash.d
Though I don't get any feedback for the library AA.
http://forum.dlang.org/post/mjsma6$196h$1@digitalmars.com
> and i believe that people that care about performance will roll
> their own
> hash functions anyway
Anyone will use the built-in hash, performance is of utmost
importance.
> [2] http://code.google.com/p/fast-hash/
It's called fast hash, but how fast is it?
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