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  1. JDK
  2. JDK-8155824

JDK build should tune down small apps more aggressively

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    • b117
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    • generic

      Recently discovered that running with -XX:TieredStopAtLevel=1 can speed up jmod execution a bit:

      http://mail.openjdk.java.net/pipermail/jigsaw-dev/2016-May/007593.html

      Some experimental results on my machine:

      time make images

      real 2m39.281s
      user 42m15.164s
      sys 3m56.388s

      -XX:TieredStopAtLevel=1 for jmod target only:

      real 2m34.913s
      user 38m18.112s
      sys 3m44.528s

      -XX:TieredStopAtLevel=1 for all small java targets in makefiles:

      real 2m29.490s
      user 35m45.944s
      sys 3m33.428s

      Reports indicate the real time improvement is even better on smaller machines.

            redestad Claes Redestad
            redestad Claes Redestad
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