28 Oct
2008
28 Oct
'08
12:45 a.m.
Should I add a ticket?
Sounds good - and if you could attach a small example showing how Array is faster that would be helpful too.
Ok, ticket is http://hackage.haskell.org/trac/ghc/ticket/2727 . Hope I got the example right - the effect is clear, but with "functional" DiffArray, it is way too easy to lose single-threadedness. In addition to the basic slowness issue, it appears there has been a serious regression in the area (handling of $! perhaps?) since 6.4.1. Claus