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https://github.com/JetBrains/JetBrainsRuntime.git
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94de2224fa
Use -Dawt.window.counters to enable.
To output counters per second to stdout/stderr,
use -Dawt.window.counters=stdout or =stderr.
A counter by the name swing.RepaintManager.updateWindows
is always available for Swing applications, but it does not
accurately correspond to frames per second.
Toolkit-dependent counters provide much better accuracy.
On Wayland with memory buffers as the backend two are available:
java2d.native.frames - frames delivered to the Wayland server
java2d.native.framesDropped - fully formed frames that were not
delivered to the Wayland server
(cherry picked from commit 872e73ed1e)
108 lines
4.2 KiB
Java
108 lines
4.2 KiB
Java
/*
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* Copyright 2024 JetBrains s.r.o.
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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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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.SwingConstants;
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import javax.swing.SwingUtilities;
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import javax.swing.Timer;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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/**
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* @test
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* @summary Verifies that swing.RepaintManager.updateWindows performance counter gets
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* updated for a Swing application
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* @key headful
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* @library /test/lib
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* @run main UpdateWindowsCounter
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*/
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public class UpdateWindowsCounter {
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private static int counter = 25;
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public static void main(String[] args) throws Exception {
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if (args.length > 0) {
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runSwingApp();
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} else {
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runOneTest("-Dawt.window.counters=stdout", "swing.RepaintManager.updateWindows per second");
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runOneTest("-Dawt.window.counters=swing.RepaintManager.updateWindows,stdout", "swing.RepaintManager.updateWindows per second");
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runOneTest("-Dawt.window.counters=stderr,swing.RepaintManager.updateWindows", "swing.RepaintManager.updateWindows per second");
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runOneTest("-Dawt.window.counters", "swing.RepaintManager.updateWindows per second");
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runOneTest("-Dawt.window.counters=", "swing.RepaintManager.updateWindows per second");
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runOneTest("-Dawt.window.counters=swing.RepaintManager.updateWindows", "swing.RepaintManager.updateWindows per second");
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runOneNegativeTest("", "swing.RepaintManager.updateWindows");
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runOneNegativeTest("-Dawt.window.counters=UNCOUNTABLE", "swing.RepaintManager.updateWindows");
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}
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}
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private static void runOneTest(String vmArg, String expectedOutput) throws Exception {
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ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(vmArg,
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UpdateWindowsCounter.class.getName(),
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"test");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldContain(expectedOutput);
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}
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private static void runOneNegativeTest(String vmArg, String unexpectedOutput) throws Exception {
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ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(vmArg,
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UpdateWindowsCounter.class.getName(),
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"test");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldNotContain(unexpectedOutput);
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}
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private static void runSwingApp() {
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SwingUtilities.invokeLater(() -> {
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JFrame frame = new JFrame("Timer App");
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frame.setSize(300, 200);
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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JLabel label = new JLabel("---", SwingConstants.CENTER);
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frame.getContentPane().add(label);
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Timer timer = new Timer(100, new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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counter--;
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label.setText(String.valueOf(counter));
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if (counter == 0) {
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((Timer) e.getSource()).stop();
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frame.dispose();
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}
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}
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});
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frame.setVisible(true);
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timer.start();
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});
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}
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} |