jdk-24/test/hotspot/jtreg/gc/g1/TestRemsetLoggingPerRegion.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package gc.g1;

/*
 * @test TestRemsetLoggingPerRegion.java
 * @requires vm.gc.G1
 * @bug 8014078 8129977 8145534
 * @library /test/lib
 * @library /
 * @modules java.base/jdk.internal.misc
 *          java.management/sun.management
 * @build jdk.test.whitebox.WhiteBox
 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
 * @summary Verify output of -Xlog:gc+remset*=trace in regards to per-region type output
 * @run driver gc.g1.TestRemsetLoggingPerRegion
 */

public class TestRemsetLoggingPerRegion {

    public static void main(String[] args) throws Exception {
        String result;

        // single remembered set summary output at the end
        result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace" }, 0);
        TestRemsetLoggingTools.expectPerRegionRSetSummaries(result, 1, 0);

        // two times remembered set summary output
        result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1);
        TestRemsetLoggingTools.expectPerRegionRSetSummaries(result, 1, 2);
    }
}