#5505: Program runs faster with profiling than without
--------------------------------------+-------------------------------------
Reporter: simonpj | Owner:
Type: bug | Status: new
Priority: high | Milestone: 7.4.1
Component: Compiler | Version: 7.6.1
Resolution: | Keywords:
Os: Windows | Architecture: Unknown/Multiple
Failure: Runtime performance bug | Difficulty:
Testcase: | Blockedby:
Blocking: | Related:
--------------------------------------+-------------------------------------
Changes (by tomberek):
* status: closed => new
* cc: tomberek@… (added)
* resolution: fixed =>
* failure: None/Unknown => Runtime performance bug
* version: 7.0.3 => 7.6.1
* owner: simonmar =>
* os: Unknown/Multiple => Windows
Comment:
The Main.hs program (compiled with or without -O2) processes a StateT
monad over ST running around a circular list. When run with profiling it
is around 35% faster than without.
It has slightly different GC behavior, but it doesn't look significant
enough to cause such a large difference.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5505#comment:13>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
_______________________________________________
Glasgow-haskell-bugs mailing list
Glasgow-haskell-bugs@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
