DisableResizePLAB.java

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/*
 * @test DisableResizePLAB
 * @key gc
 * @bug 8060467
 * @author [email protected], [email protected]
 * @requires vm.gc=="ConcMarkSweep" | vm.gc=="null"
 * @summary Run CMS with PLAB resizing disabled and a small OldPLABSize
 * @run main/othervm -XX:+UseConcMarkSweepGC -XX:-ResizePLAB -XX:OldPLABSize=1k -Xmx256m -XX:+PrintGCDetails DisableResizePLAB
 */

public class DisableResizePLAB {
    public static void main(String args[]) throws Exception {
        Object garbage[] = new Object[1_000];
        for (int i = 0; i < garbage.length; i++) {
            garbage[i] = new byte[0];
        }
        long startTime = System.currentTimeMillis();
        while (System.currentTimeMillis() - startTime < 10_000) {
            Object o = new byte[1024];
        }
    }
}