Mercurial > hg > graal-compiler
view test/gc/TestG1ZeroPGCTJcmdThreadPrint.java @ 8343:a3c30d467f96
unittest: just do a single JVM call
avoid multiple executions of the JVM in order to avoid high startup costs.
before:
> mx --vm server unittest 355.86s user 2.97s system 175% cpu 3:24.21 total
> mx --vm server longunittest 241.27s user 1.40s system 151% cpu 2:39.88 total
> mx --vm server shortunittest 203.36s user 2.23s system 269% cpu 1:16.42 total
after:
> mx --vm server unittest 202.39s user 1.02s system 130% cpu 2:36.04 total
> mx --vm server longunittest 187.39s user 0.97s system 126% cpu 2:28.38 total
> mx --vm server shortunittest 87.39s user 0.68s system 265% cpu 33.15 total
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 18 Mar 2013 15:11:52 +0100 |
parents | b9c5e46bf915 |
children |
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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 TestG1ZeroPGCTJcmdThreadPrint * @key gc * @bug 8005875 * @summary Use jcmd to generate a thread dump of a Java program being run with PGCT=0 to verify 8005875 * @library /testlibrary * @run main/othervm -XX:+UseG1GC -XX:ParallelGCThreads=0 -XX:+IgnoreUnrecognizedVMOptions TestG1ZeroPGCTJcmdThreadPrint */ import com.oracle.java.testlibrary.*; public class TestG1ZeroPGCTJcmdThreadPrint { public static void main(String args[]) throws Exception { // Grab the pid from the current java process String pid = Integer.toString(ProcessTools.getProcessId()); // Create a ProcessBuilder ProcessBuilder pb = new ProcessBuilder(); // Run jcmd <pid> Thread.print pb.command(JDKToolFinder.getJDKTool("jcmd"), pid, "Thread.print"); OutputAnalyzer output = new OutputAnalyzer(pb.start()); // There shouldn't be a work gang for concurrent marking. output.shouldNotContain("G1 Parallel Marking Threads"); // Make sure we didn't crash output.shouldHaveExitValue(0); } }