Bulat Ziganshin wrote:
Hello Chris,
Monday, January 23, 2006, 12:27:53 PM, you wrote:
CK> The only mutable data structure that come with GHC besides arrays is CK> Data.Hashtable, which is not comptetitive with OCaml Hashtbl or DMD's CK> associative arrays (unless there is something great hidden under CK> Data.Graph). Is there any hope for GHC 6.6? Does anyone have pointers to CK> an existing library at all? Perl and Python and Lua also have excellent CK> built in hashtable capabilities. Where is a good library for Haskell?
1) are you used "+RTS -A10m" / "+RTS -H100m"?
2) Simon Marlow optimized something in the IOArray handling, but i don't understand that is changed. see http://cvs.haskell.org/trac/ghc/ticket/650
Much of the GC overhead of Data.Hash should be gone in GHC 6.6. I also have an improved implementation of Data.Hash from Jan-Willem Maessen to import, but that will be 6.6 rather than 6.4.2. Cheers, Simon