[GHC] #9599: app runs 10 times faster when compiled with profilling information than without it

GHC ghc-devs at haskell.org
Wed Sep 17 07:31:00 UTC 2014


#9599: app runs 10 times faster when compiled with profilling information than
without it
-------------------------------------+-------------------------------------
              Reporter:  kgardas     |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
            Resolution:              |         Keywords:
      Operating System:  Solaris     |     Architecture:  x86
       Type of failure:  Runtime     |       Difficulty:  Unknown
  performance bug                    |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 Another way to get some insight into what is going on is to use `-ticky`.
 See [wiki:Debugging/TickyTicky].

 Reid's instincts about what to try are spot on: try those things too.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9599#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list