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  1. JDK
  2. JDK-8000316

Huge performance bottleneck in com.sun.tools.javac.comp.Check.localClassName

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        Compilation inner classes uses huge performance ineffectiveness in com.sun.tools.javac.comp.Check.localClassName.
        Compiling attached test (src.zip) javac spends more than 75% of time in the method.
        Storing last used (or free) index in the map is more efficient than running through indexes.
        Suggested patch (attached, to jdk8) speedup compilation from 3 min 19 sec to 33 sec. 6x times.

          1. javac_perf.patch
            2 kB
          2. javac_perf1.patch
            2 kB
          3. src.zip
            406 kB

              sadayapalam Srikanth Adayapalam (Inactive)
              skuksenko Sergey Kuksenko
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