Mercurial > hg > thermostat
view vm-shenandoah/client-swing/src/main/java/com/redhat/thermostat/vm/shenandoah/client/swing/internal/RegionStat.java @ 2617:f06bab050620
Add vm-shenandoah plugin
Provides a shenandoahvisualizer-based visualization of memory regions and GC
status for Shenandoah.
See http://icedtea.classpath.org/people/rkennke/shenandoahvisualizer
Reviewed-by: jkang
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2017-March/022332.html
author | Andrew Azores <aazores@redhat.com> |
---|---|
date | Mon, 06 Mar 2017 09:38:30 -0500 |
parents | |
children |
line wrap: on
line source
/* * Copyright 2012-2017 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.vm.shenandoah.client.swing.internal; import java.awt.Color; import java.awt.Graphics; import java.util.EnumSet; import static com.redhat.thermostat.vm.shenandoah.client.swing.internal.Colors.LIVE; import static com.redhat.thermostat.vm.shenandoah.client.swing.internal.Colors.LIVE_BORDER; import static com.redhat.thermostat.vm.shenandoah.client.swing.internal.Colors.USED; import static com.redhat.thermostat.vm.shenandoah.client.swing.internal.Colors.USED_ALLOC; public class RegionStat { private static final int USED_MASK = 0x1fffffff; private static final int USED_SHIFT = 0; private static final int LIVE_MASK = 0x1fffffff; private static final int LIVE_SHIFT = 29; private static final int FLAGS_MASK = 0x3f; private static final int FLAGS_SHIFT = 58; private final EnumSet<RegionFlag> flags; private final double liveLvl; private final double usedLvl; public RegionStat(double usedLvl, double liveLvl, EnumSet<RegionFlag> flags) { this.usedLvl = usedLvl; this.liveLvl = liveLvl; this.flags = flags; } public RegionStat(long maxSize, long data) { long used = (data >>> USED_SHIFT) & USED_MASK; usedLvl = Math.min(1D, 1D * used / maxSize); long live = (data >>> LIVE_SHIFT) & LIVE_MASK; liveLvl = Math.min(1D, 1D * live / maxSize); long stat = (data >>> FLAGS_SHIFT) & FLAGS_MASK; flags = EnumSet.noneOf(RegionFlag.class); if ((stat & 1) > 0) flags.add(RegionFlag.UNUSED); if ((stat & 2) > 0) flags.add(RegionFlag.IN_COLLECTION_SET); if ((stat & 4) > 0) flags.add(RegionFlag.HUMONGOUS); if ((stat & 8) > 0) flags.add(RegionFlag.RECENTLY_ALLOCATED); if ((stat & 16) > 0) flags.add(RegionFlag.PINNED); } public void render(Graphics g, int x, int y, int width, int height) { g.setColor(Color.WHITE); g.fillRect(x, y, width, height); int usedWidth = (int) (width * usedLvl); g.setColor( flags.contains(RegionFlag.RECENTLY_ALLOCATED) ? USED_ALLOC.getColor() : USED.getColor() ); g.fillRect(x, y, usedWidth, height); if (!flags.contains(RegionFlag.RECENTLY_ALLOCATED)) { int liveWidth = (int) (width * liveLvl); g.setColor(LIVE.getColor()); g.fillRect(x, y, liveWidth, height); g.setColor(LIVE_BORDER.getColor()); g.drawLine(x + liveWidth, y, x + liveWidth, y + height); } if (flags.contains(RegionFlag.IN_COLLECTION_SET)) { g.setColor(Colors.CSET.getColor()); g.fillRect(x, y, width, height / 3); g.setColor(Color.BLACK); g.drawRect(x, y, width, height / 3); } if (flags.contains(RegionFlag.HUMONGOUS)) { g.setColor(Colors.HUMONGOUS.getColor()); g.fillRect(x, y, width, height / 3); g.setColor(Color.BLACK); g.drawRect(x, y, width, height / 3); } if (flags.contains(RegionFlag.UNUSED)) { g.setColor(Color.BLACK); g.drawLine(x, y, x + width, y + height); g.drawLine(x, y + height, x + width, y); } if (flags.contains(RegionFlag.PINNED)) { g.setColor(Color.RED); g.fillOval(x + width/2, y + height/2, width/4, height/4); } g.setColor(Color.BLACK); g.drawRect(x, y, width, height); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; RegionStat that = (RegionStat) o; if (Double.compare(that.liveLvl, liveLvl) != 0) return false; if (Double.compare(that.usedLvl, usedLvl) != 0) return false; return flags.equals(that.flags); } @Override public int hashCode() { int result; long temp; result = flags.hashCode(); temp = Double.doubleToLongBits(liveLvl); result = 31 * result + (int) (temp ^ (temp >>> 32)); temp = Double.doubleToLongBits(usedLvl); result = 31 * result + (int) (temp ^ (temp >>> 32)); return result; } public double live() { return liveLvl; } public double used() { return usedLvl; } public EnumSet<RegionFlag> flags() { return flags; } }