[Haskell-cafe] Bytestrings and [Char]

Bryan O'Sullivan bos at serpentine.com
Tue Mar 23 14:22:23 EDT 2010


2010/3/23 Iustin Pop <iusty at k1024.org>

> I agree with the principle of correctness, but let's be honest - it's
> (many) orders of magnitude between ByteString and String and Text, not
> just a few percentage points…
>

Well, your benchmarks are highly suspect. See below.


> Data.ByteString.Lazy.UTF8 (system readFile + fromString + length) - 11
> seconds, correct length.
>

You should be using bytestring I/O for this.


> Data.Text.Lazy (system readFile + pack + length) - 26s, correct length.
>

You should be using text I/O for this.
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