1 This directory contains tools and tests associated with creating the

     2 class list for class data sharing.

     3 

     4 The class list is produced by running the refWorkload startup3 benchmark with

     5 the -XX:+TraceClassLoadingPreorder option.  The -Xshare:off option must also be

     6 used so that bootclasspath classes are loaded from rt.jar.  The MakeClasslist

     7 program should be built into the jar file makeclasslist.jar and is run

     8 on one of the logs from each of the benchmarks in the following fashion:

     9 

    10 cd .../<resultsdir>/results.startup3

    11 $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

    12 

    13 Presently, $JAVA_HOME must be the same path used to run the startup3 benchmark.

    14 

    15 The logs are deliberately concatenated in roughly smallest to largest order

    16 based on application size.  The resulting output is redirected into a file

    17 and results in one of classlist.solaris, classlist.linux, classlist.macosx,

    18 or classlist.windows.  These files are checked in to the workspace.  A

    19 necessary checksum (AddJsum.java) is added to the final classlist

    20 (installed in lib/ or jre/lib/) during the build process by the

    21 makefiles in make/java/redist.

    22 

    23 In a forthcoming JDK build we plan to manually add the dependent

    24 classes for the calendar manager Glow, which pulls in the Preferences

    25 classes and, on Unix platforms, the XML parsing classes.

    26 

    27 The properties file supplied to the refworkload is approximately the

    28 following:

    29 

    30 javahome=/usr/java/j2sdk1.8.0

    31 resultsdir=classlist-run

    32 iterations=1

    33 benchmarks=startup3

    34 globalvmoptions=-client -Xshare:off -XX:+TraceClassLoadingPreorder