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wman | 7 Oct 05:36
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Re: newbie questions (read, etc., with Data.ByteString.Lazy.Char8)

new figures, after updating bytestring (0.9.0.1.1 -> 0.9.1.2) && using -O2

time Main < nums
real    0m2.531s
user    0m0.015s
sys     0m0.015s

time Main2 < nums
real    0m13.999s
user    0m0.015s
sys     0m0.015s

time Main3 < nums
real    0m2.796s
user    0m0.015s
sys     0m0.015s

thats more like it, even the unpacking didn't hurt so much.

the morals: "Thou shalt update your libraries" & "Thou shalt not forget to turn on optimizations" before bitching it's too slow ;-)))

thx

On Tue, Oct 7, 2008 at 5:19 AM, Don Stewart <dons <at> galois.com> wrote:
Hmm. How are you compiling it? Using bytestring 0.9.1.x ?

Should be fast,
   http://shootout.alioth.debian.org/gp4/benchmark.php?test=sumcol&lang=all

Assuming you're turning on optimisations ( ghc -O2 )

-- Don

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