view src/share/tools/LogCompilation/README @ 17842:3ef5c627634a

8039392: Make jdk8u20 the default jprt release for hs25.20 Reviewed-by: kvn, dholmes
author amurillo
date Mon, 07 Apr 2014 22:13:55 -0700
parents 01b268b3080a
children
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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 (by default, hotspot_pid{pid}.log) from LogCompilation output like this:

  java -jar logc.jar hotspot_pid1234.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

https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+overview
https://wikis.oracle.com/display/HotSpotInternals/PrintCompilation
https://wikis.oracle.com/display/HotSpotInternals/LogCompilation+tool