35 lines
1.7 KiB
Plaintext
35 lines
1.7 KiB
Plaintext
This directory contains tools and tests associated with creating the
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class list for class data sharing.
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The class list is produced by running the refWorkload startup3 benchmark with
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the -XX:+TraceClassLoadingPreorder option. The -Xshare:off option must also be
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used so that bootclasspath classes are loaded from rt.jar. The MakeClasslist
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program should be built into the jar file makeclasslist.jar and is run
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on one of the logs from each of the benchmarks in the following fashion:
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cd .../<resultsdir>/results.startup3
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$JAVA_HOME/bin/java -jar makeclasslist.jar results.Noop/results_1/log results.Framer/results_1/log results.XFramer/results_1/log results.JEdit/results_1/log results.LimeWire/results_1/log results.NetBeans50/results_1/log
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Presently, $JAVA_HOME must be the same path used to run the startup3 benchmark.
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The logs are deliberately concatenated in roughly smallest to largest order
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based on application size. The resulting output is redirected into a file
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and results in one of classlist.solaris, classlist.linux, classlist.macosx,
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or classlist.windows. These files are checked in to the workspace. A
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necessary checksum (AddJsum.java) is added to the final classlist
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(installed in lib/ or jre/lib/) during the build process by the
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makefiles in make/java/redist.
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In a forthcoming JDK build we plan to manually add the dependent
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classes for the calendar manager Glow, which pulls in the Preferences
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classes and, on Unix platforms, the XML parsing classes.
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The properties file supplied to the refworkload is approximately the
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following:
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javahome=/usr/java/j2sdk1.8.0
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resultsdir=classlist-run
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iterations=1
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benchmarks=startup3
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globalvmoptions=-client -Xshare:off -XX:+TraceClassLoadingPreorder
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