class VerifySummaryOutput { publicstaticvoid main(String[] args) { int numGCs = Integer.parseInt(args[0]);
// Perform the requested amount of GCs.
WhiteBox wb = WhiteBox.getWhiteBox(); for (int i = 0; i < numGCs - 1; i++) {
wb.youngGC();
} if (numGCs > 0) {
wb.fullGC();
}
}
}
publicclass TestRemsetLoggingTools {
publicstatic String runTest(String[] additionalArgs, int numGCs) throws Exception {
ArrayList<String> finalargs = new ArrayList<String>();
String[] defaultArgs = new String[] { "-Xbootclasspath/a:.", "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", "-cp", System.getProperty("java.class.path"), "-XX:+UseG1GC", "-Xmn4m", "-Xint", // -Xint makes the test run faster "-Xms20m", "-Xmx20m", "-XX:ParallelGCThreads=1", "-XX:InitiatingHeapOccupancyPercent=100", // we don't want the additional GCs due to marking "-XX:+UnlockDiagnosticVMOptions", "-XX:G1HeapRegionSize=1M",
};
finalargs.addAll(Arrays.asList(defaultArgs));
if (additionalArgs != null) {
finalargs.addAll(Arrays.asList(additionalArgs));
}
publicstaticvoid expectRSetSummaries(String result, int expectedCumulative, int expectedPeriodic) throws Exception { int actualTotal = result.split("Current rem set statistics").length - 1; int actualCumulative = result.split("Cumulative RS summary").length - 1;
if (expectedCumulative != actualCumulative) { thrownew Exception("Incorrect amount of RSet summaries at the end. Expected " + expectedCumulative + ", got " + actualCumulative);
}
if (expectedPeriodic != (actualTotal - actualCumulative)) { thrownew Exception("Incorrect amount of per-period RSet summaries at the end. Expected " + expectedPeriodic + ", got " + (actualTotal - actualCumulative));
}
}
}
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