Mercurial > hg > graal-compiler
view test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java @ 22296:11c97c1d824a
Use new c1visualizer (updated disassembler)
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Wed, 22 Jul 2015 14:37:17 +0200 |
parents | 9c8439756c05 |
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/* * 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; } }