jdk8-mips64-public/hotspot: test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java@9c8439756c05 (annotated)

test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java@9c8439756c05 (annotated)

test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java

Fri, 19 Sep 2014 11:12:39 -0400

author: mseledtsov
date: Fri, 19 Sep 2014 11:12:39 -0400
changeset 7202: 9c8439756c05
permissions: -rw-r--r--

8052313: Backport CDS tests from JDK-9 to jdk8_u40
Summary: Copied CDS tests from jdk-9 to jdk8u40
Reviewed-by: ccheung, dholmes

 /*
  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /*
  * @test SpaceUtilizationCheck
  * @summary Check if the space utilization for shared spaces is adequate
  * @library /testlibrary
  * @run main SpaceUtilizationCheck
  */
 import com.oracle.java.testlibrary.*;
 import java.util.regex.Pattern;
 import java.util.regex.Matcher;
 import java.util.ArrayList;
 import java.lang.Integer;
 public class SpaceUtilizationCheck {
     // Minimum allowed utilization value (percent)
     // The goal is to have this number to be 50% for RO and RW regions
     // Once that feature is implemented, increase the MIN_UTILIZATION to 50
     private static final int MIN_UTILIZATION = 30;
     // Only RO and RW regions are considered for this check, since they
     // currently account for the bulk of the shared space
     private static final int NUMBER_OF_CHECKED_SHARED_REGIONS = 2;
     public static void main(String[] args) throws Exception {
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
            "-XX:+UnlockDiagnosticVMOptions",
            "-XX:SharedArchiveFile=./test.jsa",
            "-Xshare:dump");
         OutputAnalyzer output = new OutputAnalyzer(pb.start());
         String stdout = output.getStdout();
         ArrayList<String> utilization = findUtilization(stdout);
         if (utilization.size() != NUMBER_OF_CHECKED_SHARED_REGIONS )
             throw new RuntimeException("The output format of sharing summary has changed");
         for(String str : utilization) {
             int value = Integer.parseInt(str);
             if (value < MIN_UTILIZATION) {
                 System.out.println(stdout);
                 throw new RuntimeException("Utilization for one of the regions" +
                     "is below a threshold of " + MIN_UTILIZATION + "%");
             }
         }
     }
     public static ArrayList<String> findUtilization(String input) {
         ArrayList<String> regions = filterRegionsOfInterest(input.split("\n"));
         return filterByPattern(filterByPattern(regions, "bytes \\[.*% used\\]"), "\\d+");
     }
     private static ArrayList<String> filterByPattern(Iterable<String> input, String pattern) {
         ArrayList<String> result = new ArrayList<String>();
         for (String str : input) {
             Matcher matcher = Pattern.compile(pattern).matcher(str);
             if (matcher.find()) {
                 result.add(matcher.group());
             }
         }
         return result;
     }
     private static ArrayList<String> filterRegionsOfInterest(String[] inputLines) {
         ArrayList<String> result = new ArrayList<String>();
         for (String str : inputLines) {
             if (str.contains("ro space:") || str.contains("rw space:")) {
                 result.add(str);
             }
         }
         return result;
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java@9c8439756c05 (annotated)

test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java