On Fri, 30 Mar 2007, Jeremy Shaw wrote:
Hello,
Did you compile with -O2 ? That makes a huge difference when using ByteString.
j.
Ah, that was exactly it. I feel silly.
module Main where
import qualified Data.ByteString.Char8 as B
main = do
content <- B.readFile "test-text-file"
let l = length . B.words $ content
print l
$ ghc -O2 count-b.hs
$ time ./a.out
174372
real 0m0.198s
user 0m0.136s
sys 0m0.012s
Much faster. Thank you!
dino-
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