can't GHC do this using the threaded RTS?
Keean.
John Meacham wrote:
>Actually, If I were writing new haskell libraries, I would use mmap >whenever I could for accessing files. not only does it make the file >pointer problem go away, but it can be drastically more efficient.
I'm not sure this is a good idea, because GHC really needs non-blocking I/O to support its thread model, and memory-mapped I/O always blocks. In fact this is a problem even if we only memory-map files at the programmer's request.
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