212 lines
8.4 KiB
Java
212 lines
8.4 KiB
Java
/*
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* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test CodeCacheTest
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* @bug 8054889
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.compiler
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* java.management
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* jdk.internal.jvmstat/sun.jvmstat.monitor
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* @run testng/othervm -XX:+SegmentedCodeCache CodeCacheTest
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* @run testng/othervm -XX:-SegmentedCodeCache CodeCacheTest
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* @run testng/othervm -Xint -XX:+SegmentedCodeCache CodeCacheTest
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* @summary Test of diagnostic command Compiler.codecache
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*/
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import org.testng.annotations.Test;
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import org.testng.Assert;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.dcmd.CommandExecutor;
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import jdk.test.lib.dcmd.JMXExecutor;
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import java.util.Iterator;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class CodeCacheTest {
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/**
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* This test calls Jcmd (diagnostic command tool) Compiler.codecache and then parses the output,
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* making sure that all numbers look ok
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*
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*
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* Expected output without code cache segmentation:
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*
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* CodeCache: size=245760Kb used=1366Kb max_used=1935Kb free=244393Kb
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* bounds [0x00007ff4d89f2000, 0x00007ff4d8c62000, 0x00007ff4e79f2000]
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* total_blobs=474, nmethods=87, adapters=293, full_count=0
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* Compilation: enabled, stopped_count=0, restarted_count=0
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*
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* Expected output with code cache segmentation (number of segments may change):
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*
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* CodeHeap 'non-profiled nmethods': size=118592Kb used=29Kb max_used=29Kb free=118562Kb
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* bounds [0x00007f09f8622000, 0x00007f09f8892000, 0x00007f09ff9f2000]
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* CodeHeap 'profiled nmethods': size=118588Kb used=80Kb max_used=80Kb free=118507Kb
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* bounds [0x00007f09f09f2000, 0x00007f09f0c62000, 0x00007f09f7dc1000]
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* CodeHeap 'non-nmethods': size=8580Kb used=1257Kb max_used=1833Kb free=7323Kb
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* bounds [0x00007f09f7dc1000, 0x00007f09f8031000, 0x00007f09f8622000]
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* CodeCache: size=245760Kb, used=1366Kb, max_used=1942Kb, free=244392Kb
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* total_blobs=474, nmethods=87, adapters=293, full_count=0
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* Compilation: enabled, stopped_count=0, restarted_count=0
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*/
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static Pattern line1 = Pattern.compile("(CodeCache|CodeHeap.*): size=(\\p{Digit}*)Kb used=(\\p{Digit}*)Kb max_used=(\\p{Digit}*)Kb free=(\\p{Digit}*)Kb");
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static Pattern line2 = Pattern.compile(" bounds \\[0x(\\p{XDigit}*), 0x(\\p{XDigit}*), 0x(\\p{XDigit}*)\\]");
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static Pattern line3 = Pattern.compile(" total_blobs=(\\p{Digit}*), nmethods=(\\p{Digit}*), adapters=(\\p{Digit}*), full_count=(\\p{Digit}*)");
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static Pattern line4 = Pattern.compile("Compilation: (.*?), stopped_count=(\\p{Digit}*), restarted_count=(\\p{Digit}*)");
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private static boolean getFlagBool(String flag, String where) {
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Matcher m = Pattern.compile(flag + "\\s+:?= (true|false)").matcher(where);
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if (!m.find()) {
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Assert.fail("Could not find value for flag " + flag + " in output string");
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}
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return m.group(1).equals("true");
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}
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private static int getFlagInt(String flag, String where) {
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Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
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if (!m.find()) {
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Assert.fail("Could not find value for flag " + flag + " in output string");
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}
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String match = m.group();
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return Integer.parseInt(match.substring(match.lastIndexOf(" ") + 1, match.length()));
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}
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public void run(CommandExecutor executor) {
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// Get number of code cache segments
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int segmentsCount = 0;
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String flags = executor.execute("VM.flags -all").getOutput();
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if (!getFlagBool("SegmentedCodeCache", flags) || !getFlagBool("UseCompiler", flags)) {
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// No segmentation
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segmentsCount = 1;
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} else if (getFlagBool("TieredCompilation", flags) && getFlagInt("TieredStopAtLevel", flags) > 1) {
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// Tiered compilation: use all segments
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segmentsCount = 3;
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} else {
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// No TieredCompilation: only non-nmethod and non-profiled segment
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segmentsCount = 2;
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}
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// Get output from dcmd (diagnostic command)
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OutputAnalyzer output = executor.execute("Compiler.codecache");
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Iterator<String> lines = output.asLines().iterator();
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// Validate code cache segments
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String line;
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Matcher m;
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int matchedCount = 0;
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while (true) {
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// Validate first line
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line = lines.next();
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m = line1.matcher(line);
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if (m.matches()) {
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for (int i = 2; i <= 5; i++) {
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int val = Integer.parseInt(m.group(i));
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if (val < 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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}
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} else {
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break;
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}
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// Validate second line
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line = lines.next();
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m = line2.matcher(line);
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if (m.matches()) {
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String start = m.group(1);
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String mark = m.group(2);
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String top = m.group(3);
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// Lexical compare of hex numbers to check that they look sane.
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if (start.compareTo(mark) > 1) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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if (mark.compareTo(top) > 1) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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} else {
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Assert.fail("Regexp 2 failed to match line: " + line);
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}
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++matchedCount;
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}
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// Because of CodeCacheExtensions, we could match more than expected
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if (matchedCount < segmentsCount) {
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Assert.fail("Fewer segments matched (" + matchedCount + ") than expected (" + segmentsCount + ")");
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}
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if (segmentsCount != 1) {
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// Skip this line CodeCache: size=245760Kb, used=5698Kb, max_used=5735Kb, free=240059Kb
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line = lines.next();
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}
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// Validate third line
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m = line3.matcher(line);
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if (m.matches()) {
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int blobs = Integer.parseInt(m.group(1));
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if (blobs <= 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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int nmethods = Integer.parseInt(m.group(2));
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if (nmethods < 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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int adapters = Integer.parseInt(m.group(3));
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if (adapters <= 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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if (blobs < (nmethods + adapters)) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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} else {
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Assert.fail("Regexp 3 failed to match line: " + line);
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}
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// Validate fourth line
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line = lines.next();
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m = line4.matcher(line);
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if (m.matches()) {
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if (!m.group(1).contains("enabled") && !m.group(1).contains("disabled")) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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int stopped = Integer.parseInt(m.group(2));
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if (stopped < 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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int restarted = Integer.parseInt(m.group(3));
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if (restarted < 0) {
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Assert.fail("Failed parsing dcmd codecache output");
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}
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} else {
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Assert.fail("Regexp 4 failed to match line: " + line);
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}
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}
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@Test
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public void jmx() {
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run(new JMXExecutor());
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}
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}
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