[GHC] #15938: Hadrian's recompilation check is extremely slow

[GHC]

#15938: Hadrian's recompilation check is extremely slow
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:  alpmestan
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.8.1
       Component:  Build System      |              Version:  8.6.2
  (Hadrian)                          |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5412,
       Wiki Page:                    |  Phab:D5422
-------------------------------------+-------------------------------------
Changes (by alpmestan):

 * status:  patch => closed
 * resolution:   => fixed


Comment:

 We eliminated all the costly enumerations and the recompilation check is
 now reasonably fast (I'm sure it can be improved further), so let's close
 this and open specific tickets if some performance problems show up
 elsewhere.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15938#comment:42>
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