"Simon Marlow"
The difference is that the System.IO that comes with GHC is actually implemented, rather than just documented :-)
Ah. Drat. You know, it really looks good, and I really could use efficient file access, but I'm afraid I really need an implementation, too. :-)
(to clarify, that link above is a half-baked design for a System.IO replacement. The discussion was taking place on libraries@haskell.org a while back, but has stalled).
Okay. What's really bothering me is that I can't find any good
indication of what to do to get IO faster. Do I need to FFI the whole
thing and have a C library give me large chunks? Or can I get by with
hGet/PutArray? If so, what sizes should they be? Should I use memory
mapped files?
I'm willing to put in some work, accept some kluges, and so on, but I
can't really blindly try all possible combinations with my fingers
crossed. Some people seem to manage to speed things up, but I can't
seem to find anything *specific* anywhere.
E.g. when I posted a snippet to do readFile¹ in somewhat larger chunks
a while ago, I was hoping somebody would say, hey, that's just stupid,
what you need to do instead is... or point me to TFM, but
unfortunately only silence ensued, and left me a sadder but none the
wiser man...
-kzm
¹ Message-ID: