view test/gc/arguments/TestUseCompressedOopsErgo.java @ 6533:b86041bd7b99

8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes
author tschatzl
date Tue, 18 Apr 2017 06:37:32 +0100
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/*
 * @test TestUseCompressedOopsErgo
 * @key gc
 * @bug 8010722
 * @summary Tests ergonomics for UseCompressedOops.
 * @library /testlibrary /testlibrary/whitebox
 * @build TestUseCompressedOopsErgo TestUseCompressedOopsErgoTools
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseG1GC
 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC
 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC -XX:-UseParallelOldGC
 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseConcMarkSweepGC
 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseSerialGC
 */

public class TestUseCompressedOopsErgo {

  public static void main(String args[]) throws Exception {
    if (!TestUseCompressedOopsErgoTools.is64bitVM()) {
      // this test is relevant for 64 bit VMs only
      return;
    }
    final String[] gcFlags = args;
    TestUseCompressedOopsErgoTools.checkCompressedOopsErgo(gcFlags);
  }
}