[GHC] #8472: Primitive string literals prevent optimization

GHC ghc-devs at haskell.org
Tue Nov 15 09:30:50 UTC 2016


#8472: Primitive string literals prevent optimization
-------------------------------------+-------------------------------------
        Reporter:  akio              |                Owner:  gridaphobe
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.6.3
      Resolution:                    |             Keywords:  newcomer
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2554,
       Wiki Page:                    |  Phab:D2605
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Comment (by simonpj):

 Oh OK, now I understand.  I think that's fine:

 * peak allocation is very vulnerable to the moment at which major gc runs.

 * "Term" component of core-stats is fine.

 Thanks

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8472#comment:19>
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