> The problem was whether DiffArrays should be thread-safe in the > Concurrent Haskell sense, which means protecting access to the DiffArray > with an MVar.
Can you give some estimate of the cost of using an MVar in this way? Could some cheaper mechanism be provided for the special case of a mutex? e.g., the moral equivalent of disabling interrupts might be cheaper (though I'd want to look at the diffarray code again before deciding if that style of solution were appropriate). -- Alastair _______________________________________________ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
