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test/compiler/arguments/CheckCompileThresholdScaling.java

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  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  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 import com.oracle.java.testlibrary.*;
  25 
  26 /*
  27  * @test CheckCompileThresholdScaling
  28  * @bug 8059604
  29  * @summary "Add CompileThresholdScaling flag to control when methods are first compiled (with +/-TieredCompilation)"
  30  * @library /testlibrary

  31  * @run main CheckCompileThresholdScaling
  32  */
  33 
  34 public class CheckCompileThresholdScaling {
  35 
  36     // The flag CompileThresholdScaling scales compilation thresholds
  37     // in the following way:
  38     //
  39     // - if CompileThresholdScaling==1.0, the default threshold values
  40     // are used;
  41     //
  42     // - if CompileThresholdScaling>1.0, threshold values are scaled
  43     // up (e.g., CompileThresholdScalingPercentage=1.2 scales up
  44     // thresholds by a factor of 1.2X);
  45     //
  46     // - if CompileThresholdScaling<1.0, threshold values are scaled
  47     // down;
  48     //
  49     // - if CompileThresholdScaling==0, compilation is disabled
  50     // (equivalent to using -Xint).




  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  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 import com.oracle.java.testlibrary.*;
  25 
  26 /*
  27  * @test CheckCompileThresholdScaling
  28  * @bug 8059604
  29  * @summary "Add CompileThresholdScaling flag to control when methods are first compiled (with +/-TieredCompilation)"
  30  * @library /testlibrary
  31  * @build com.oracle.java.testlibrary.*
  32  * @run main CheckCompileThresholdScaling
  33  */
  34 
  35 public class CheckCompileThresholdScaling {
  36 
  37     // The flag CompileThresholdScaling scales compilation thresholds
  38     // in the following way:
  39     //
  40     // - if CompileThresholdScaling==1.0, the default threshold values
  41     // are used;
  42     //
  43     // - if CompileThresholdScaling>1.0, threshold values are scaled
  44     // up (e.g., CompileThresholdScalingPercentage=1.2 scales up
  45     // thresholds by a factor of 1.2X);
  46     //
  47     // - if CompileThresholdScaling<1.0, threshold values are scaled
  48     // down;
  49     //
  50     // - if CompileThresholdScaling==0, compilation is disabled
  51     // (equivalent to using -Xint).


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