13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test SpaceUtilizationCheck
  26  * @summary Check if the space utilization for shared spaces is adequate
  27  * @library /testlibrary
  28  * @modules java.base/sun.misc
  29  *          java.management
  30  * @run main SpaceUtilizationCheck
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 import java.util.regex.Pattern;
  36 import java.util.regex.Matcher;
  37 import java.util.ArrayList;
  38 import java.lang.Integer;
  39 
  40 public class SpaceUtilizationCheck {
  41     // Minimum allowed utilization value (percent)
  42     // The goal is to have this number to be 50% for RO and RW regions
  43     // Once that feature is implemented, increase the MIN_UTILIZATION to 50
  44     private static final int MIN_UTILIZATION = 30;
  45 
  46     // Only RO and RW regions are considered for this check, since they
  47     // currently account for the bulk of the shared space
  48     private static final int NUMBER_OF_CHECKED_SHARED_REGIONS = 2;
  49 
  50     public static void main(String[] args) throws Exception {
  51         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  52            "-XX:+UnlockDiagnosticVMOptions",
  53            "-XX:SharedArchiveFile=./SpaceUtilizationCheck.jsa",

  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test SpaceUtilizationCheck
  26  * @summary Check if the space utilization for shared spaces is adequate
  27  * @library /testlibrary
  28  * @modules java.base/sun.misc
  29  *          java.management
  30  * @run main SpaceUtilizationCheck
  31  */
  32 
  33 import jdk.test.lib.*;
  34 
  35 import java.util.regex.Pattern;
  36 import java.util.regex.Matcher;
  37 import java.util.ArrayList;
  38 import java.lang.Integer;
  39 
  40 public class SpaceUtilizationCheck {
  41     // Minimum allowed utilization value (percent)
  42     // The goal is to have this number to be 50% for RO and RW regions
  43     // Once that feature is implemented, increase the MIN_UTILIZATION to 50
  44     private static final int MIN_UTILIZATION = 30;
  45 
  46     // Only RO and RW regions are considered for this check, since they
  47     // currently account for the bulk of the shared space
  48     private static final int NUMBER_OF_CHECKED_SHARED_REGIONS = 2;
  49 
  50     public static void main(String[] args) throws Exception {
  51         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  52            "-XX:+UnlockDiagnosticVMOptions",
  53            "-XX:SharedArchiveFile=./SpaceUtilizationCheck.jsa",