Mercurial > hg > graal-compiler
view test/runtime/NMT/SummarySanityCheck.java @ 10348:3970971c91e0
8015270: @Contended: fix multiple issues in the layout code
Summary: field count handling fixed, has_nonstatic_fields invariant fixed, oop map overrun fixed; new asserts
Reviewed-by: kvn, dcubed, coleenp
author | shade |
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date | Mon, 27 May 2013 12:49:08 -0700 |
parents | 1b0dc9f87e75 |
children | ac12996df59b |
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/* * Copyright (c) 2013, 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 * @key nmt jcmd * @summary Sanity check the output of NMT * @library /testlibrary /testlibrary/whitebox * @build SummarySanityCheck * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck */ import com.oracle.java.testlibrary.*; import java.util.regex.Matcher; import java.util.regex.Pattern; import sun.hotspot.WhiteBox; public class SummarySanityCheck { private static String jcmdout; public static void main(String args[]) throws Exception { // Grab my own PID String pid = Integer.toString(ProcessTools.getProcessId()); // Use WB API to ensure that all data has been merged before we continue if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) { throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); } ProcessBuilder pb = new ProcessBuilder(); // Run 'jcmd <pid> VM.native_memory summary scale=KB' pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"}); OutputAnalyzer output = new OutputAnalyzer(pb.start()); jcmdout = output.getOutput(); // Split by '-' to get the 'groups' String[] lines = jcmdout.split("\n"); if (lines.length == 0) { throwTestException("Failed to parse jcmd output"); } int totalCommitted = 0, totalReserved = 0; int totalCommittedSum = 0, totalReservedSum = 0; // Match '- <mtType> (reserved=<reserved>KB, committed=<committed>KB) Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)"); // Match 'Total: reserved=<reserved>KB, committed=<committed>KB' Pattern totalMemoryPattern = Pattern.compile("Total\\:\\s\\sreserved=(?<reserved>\\d+)KB,\\s\\scommitted=(?<committed>\\d+)KB"); for (int i = 0; i < lines.length; i++) { if (lines[i].startsWith("Total")) { Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]); if (totalMemoryMatcher.matches() && totalMemoryMatcher.groupCount() == 2) { totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed")); totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved")); } else { throwTestException("Failed to match the expected groups in 'Total' memory part"); } } else if (lines[i].startsWith("-")) { Matcher typeMatcher = mtTypePattern.matcher(lines[i]); if (typeMatcher.matches()) { int typeCommitted = Integer.parseInt(typeMatcher.group("committed")); int typeReserved = Integer.parseInt(typeMatcher.group("reserved")); // Make sure reserved is always less or equals if (typeCommitted > typeReserved) { throwTestException("Committed (" + typeCommitted + ") was more than Reserved (" + typeReserved + ") for mtType: " + typeMatcher.group("typename")); } // Add to total and compare them in the end totalCommittedSum += typeCommitted; totalReservedSum += typeReserved; } else { throwTestException("Failed to match the group on line " + i); } } } // See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB int committedDiff = totalCommitted - totalCommittedSum; if (committedDiff > 8 || committedDiff < -8) { throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" ); } int reservedDiff = totalReserved - totalReservedSum; if (reservedDiff > 8 || reservedDiff < -8) { throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" ); } } private static void throwTestException(String reason) throws Exception { throw new Exception(reason + " . Stdout is :\n" + jcmdout); } }