Mercurial > hg > truffle
view test/testlibrary_tests/OutputAnalyzerReportingTest.java @ 20543:e7d0505c8a30
8059758: Footprint regressions with JDK-8038423
Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.
Reviewed-by: jwilhelm, brutisso
author | tschatzl |
---|---|
date | Fri, 10 Oct 2014 15:51:58 +0200 |
parents | 5b1191bf0b4b |
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 * @summary Test the OutputAnalyzer reporting functionality, * such as printing additional diagnostic info * (exit code, stdout, stderr, command line, etc.) * @library /testlibrary */ import java.io.ByteArrayOutputStream; import java.io.PrintStream; import com.oracle.java.testlibrary.OutputAnalyzer; import com.oracle.java.testlibrary.ProcessTools; public class OutputAnalyzerReportingTest { public static void main(String[] args) throws Exception { // Create the output analyzer under test String stdout = "aaaaaa"; String stderr = "bbbbbb"; OutputAnalyzer output = new OutputAnalyzer(stdout, stderr); // Expected summary values should be the same for all cases, // since the outputAnalyzer object is the same String expectedExitValue = "-1"; String expectedSummary = " stdout: [" + stdout + "];\n" + " stderr: [" + stderr + "]\n" + " exitValue = " + expectedExitValue + "\n"; DiagnosticSummaryTestRunner testRunner = new DiagnosticSummaryTestRunner(); // should have exit value testRunner.init(expectedSummary); int unexpectedExitValue = 2; try { output.shouldHaveExitValue(unexpectedExitValue); } catch (RuntimeException e) { } testRunner.closeAndCheckResults(); // should not contain testRunner.init(expectedSummary); try { output.shouldNotContain(stdout); } catch (RuntimeException e) { } testRunner.closeAndCheckResults(); // should contain testRunner.init(expectedSummary); try { output.shouldContain("unexpected-stuff"); } catch (RuntimeException e) { } testRunner.closeAndCheckResults(); // should not match testRunner.init(expectedSummary); try { output.shouldNotMatch("[a]"); } catch (RuntimeException e) { } testRunner.closeAndCheckResults(); // should match testRunner.init(expectedSummary); try { output.shouldMatch("[qwerty]"); } catch (RuntimeException e) { } testRunner.closeAndCheckResults(); } private static class DiagnosticSummaryTestRunner { private ByteArrayOutputStream byteStream = new ByteArrayOutputStream(10000); private String expectedSummary = ""; private PrintStream errStream; public void init(String expectedSummary) { this.expectedSummary = expectedSummary; byteStream.reset(); errStream = new PrintStream(byteStream); System.setErr(errStream); } public void closeAndCheckResults() { // check results errStream.close(); String stdErrStr = byteStream.toString(); if (!stdErrStr.contains(expectedSummary)) { throw new RuntimeException("The output does not contain " + "the diagnostic message, or the message is incorrect"); } } } }