Ubuntu
ghc6 package

libghc6-bytestring version 9.0.1 has a serious performance bug

Bug #288601 reported by Ketil Malde
2
Affects Status Importance Assigned to Milestone
ghc6 (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

Binary package hint: ghc6

ghc6 is packaged with the bytestring library (libghc6-bytestring) version 9.0.1 (on Intrepid, and I think, Hardy). However, this version has a performance bug that can cause quadratic behavior when you'd otherwise expect linear. If at all possible, this library should be upgraded to a current version, and its dependencies recompiled.

See
http://blog.malde.org/index.php/2008/10/24/optimization-again-befuddled-by-bytestrings/
and
http://<email address hidden>/msg11509.html

Revision history for this message
Ketil Malde (ketil-ii) wrote :

Fixed in newer versions, at least in 10.04 and later.

Changed in ghc6 (Ubuntu):
status: New → Fix Released
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.