[GHC] #13220: Performance regressions in testsuite from join points

[GHC]

#13220: Performance regressions in testsuite from join points
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        Reporter:  lukemaurer        |                Owner:  lukemaurer
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:  JoinPoints
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Reid, Ben, David: might one of you be able to dig into where the 13% build
 time increase is coming from?  The compiler/perf tests suggest that it's
 not an across-the-board increase in compile time, so perhaps some things
 are big outliers?

 Without more insight we are stuck on this, and we can hardly release with
 such a big step change in build time -- at least not without understanding
 it.

 Thanks

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13220#comment:10>
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