[Haskell-cafe] Re: String vs ByteString

Don Stewart 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
>>    - 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.

E.g http://www.mail-archive.com/haskell@haskell.org/msg18596.html

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