mirror of https://github.com/voidlizard/hbs2
13 lines
324 B
Haskell
13 lines
324 B
Haskell
import qualified Data.ByteString as S
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import System.IO.Posix.MMap
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import Control.Monad
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import Text.Printf
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main = do
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s <- unsafeMMapFile "/usr/obj/data/1G"
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print "This program should touch only 1 page per 100k"
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forM_ [0, (1024) .. S.length s-1] $ \n -> do
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printf "n=%d := %d\n" n (S.index s n)
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