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Revision as of 06:16, 30 August 2009 by Steve C (talk | contribs) (Expand on Library/Streams description.)

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Haskell Performance Resource

Data Types - Functions
Overloading - FFI - Arrays
Strings - Integers - I/O
Floating point - Concurrency
Modules - Monads

Strictness - Laziness
Avoiding space leaks
Accumulating parameter

GHC - nhc98 - Hugs
Yhc - JHC


If the standard lazy IO operations are proving to be a bottleneck, buffer-based IO is an alternative (hGetBuf/hPutBuf). This can be particularly effective when combined with packed strings (see wc).

Some external libraries also provide memory mapped IO.

Library/Streams is a new (in 2006) approach to I/O, which claims to be 5-10 times faster on some operations than handle-based IO.