Re: [Haskell-cafe] haskell crypto is reaaaaaaaaaally slow

aeyakovenko:

i don't think its a problem with bytestrings. I strictly unpacked the bytestring and i still have 4 seconds for an md5 sum of the [word8]

Until someone writes an md5 on bytestrings, we can't really say how much the slowdown is due to unpacking, GC and other memory stress building and walking the big list, or the list-based md5 sum. There's a few sources of problems once you decide to build a giant list from each byte in the file. I'd suspect a pure haskell md5 over bytestrings would be competitive with a C implemetation though. Easier to just call OpenSSL. -- Don