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view src/share/tools/LogCompilation/README @ 7397:442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
Summary: Set the value of MarkStackSize to a value based on the number of parallel marking threads with a reasonable minimum. Expand the marking stack if we have to restart marking due to an overflow up to a reasonable maximum. Allocate the underlying space for the marking stack from virtual memory.
Reviewed-by: jmasa, brutisso
| author | johnc |
|---|---|
| date | Mon, 01 Oct 2012 09:28:13 -0700 |
| parents | 07d449658fc7 |
| children | 2aff40cb4703 |
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This is a very rough tool for parsing -XX:+LogCompilation output. It's main purpose is to recreate output similar to -XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM. It requires a 1.5 JDK to build and simply typing make should build it. It produces a jar file, logc.jar, that can be run on the hotspot.log from LogCompilation output like this: java -jar logc.jar hotspot.log This will produce something like the normal PrintCompilation output. Adding the -i option with also report inlining like PrintInlining. More information about the LogCompilation output can be found at http://wikis.sun.com/display/HotSpotInternals/LogCompilation+overview http://wikis.sun.com/display/HotSpotInternals/PrintCompilation http://wikis.sun.com/display/HotSpotInternals/LogCompilation+tool