[GHC] #7258: Compiling DynFlags is jolly slow

GHC ghc-devs at haskell.org
Thu Oct 26 13:23:46 UTC 2017


#7258: Compiling DynFlags is jolly slow
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:  simonpj
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.6.1
      Resolution:                    |             Keywords:  deriving-perf
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by tdammers):

 More data! https://ghc.haskell.org/trac/ghc/attachment/ticket/7258/ghc-
 large-record-types-cmm-size.png shows C-- code size growth as the number
 of fields grows for the same generated examples as in the other graphs.
 getline and getline-appl generate the exact same C--, so there's no point
 including both in the graph; they are the only ones that grow linearly
 among the "interesting" examples.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7258#comment:62>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list