Faster IO

Benedikt Huber benjovi at
Thu Jun 23 17:06:40 EDT 2005

Jim Apple wrote:
> I'm having an IO speed problem. I need to input a long string of known
> length and process it with a foldl. getLine and foldl take way too long;
> is there a known faster way?

Use hGetContents and fold', the strict version of fold (It then takes
about 70 seconds to sum 18 megs of float numbers on my machine, linear


More information about the Glasgow-haskell-users mailing list