[GHC] #15304: Huge increase of compile time and memory use from 8.0.2 to 8.2.2 or 8.4.2

GHC ghc-devs at haskell.org
Sun Jul 1 18:35:56 UTC 2018


#15304: Huge increase of compile time and memory use from 8.0.2 to 8.2.2 or 8.4.2
-------------------------------------+-------------------------------------
        Reporter:  NathanWaivio      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by NathanWaivio):

 * Attachment "ghc-8.4.2-v.txt" added.

 Attached verbose output of ghc-8.4.2.  Noticed that while compiling the
 memory usage increased from 10GB to 32GB during CodeGen.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15304>
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