hotspot/src/share/tools/LogCompilation/README
author bharadwaj
Tue, 27 Nov 2012 17:24:15 -0800
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child 20010 c66a7254680c
permissions -rw-r--r--
7092905: C2: Keep track of the number of dead nodes Summary: keep an (almost) accurate running count of the reachable (live) flow graph nodes. Reviewed-by: kvn, twisti, jrose, vlivanov
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This is a very rough tool for parsing -XX:+LogCompilation output.
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It's main purpose is to recreate output similar to
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-XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM.  It
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requires a 1.5 JDK to build and simply typing make should build it.
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It produces a jar file, logc.jar, that can be run on the
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hotspot.log from LogCompilation output like this:
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  java -jar logc.jar hotspot.log
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This will produce something like the normal PrintCompilation output.
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Adding the -i option with also report inlining like PrintInlining.
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More information about the LogCompilation output can be found at 
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https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+overview
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https://wikis.oracle.com/display/HotSpotInternals/PrintCompilation
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https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+tool