[Haskell-cafe] Re: String vs ByteString
dons at galois.com
Sun Aug 15 20:10:54 EDT 2010
> Bryan O'Sullivan wrote:
>> As a case in point, I took the string search benchmark that Daniel shared
>> on Friday, and boiled it down to a simple test case: how long does it take
>> to read a 31MB file?
>> GNU wc -m:
>> - en_US.UTF-8: 0.701s
>> text 0.7.1.0:
>> - lazy text: 1.959s
>> - strict text: 3.527s
>> darcs HEAD:
>> - lazy text: 0.749s
>> - strict text: 0.927s
> When should we expect to see the HEAD stamped and numbered? After some
> of the recent benchmark dueling re web frameworks, I know Text got a bad
> rap compared to ByteString. It'd be good to stop the FUD early.
> Repeating the above in the announcement should help a lot.
For what its worth, for several bytestring announcements I published
comprehensive function-by-function comparisions of performance on
enormous data sets, until there was unambiguous evidence bytestring was
faster than List.
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