Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/oops/ObjectHistogram.java @ 218:a5838065ab24
6620329: jstack prints double native methods on Solaris/sparc
Summary: Fixed stack walking code in sparc to start frame walk from last_java_sp.
Reviewed-by: sgoldman
author | swamyv |
---|---|
date | Tue, 24 Jun 2008 21:37:10 -0700 |
parents | ba764ed4b6f2 |
children | d1605aabd0a1 |
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/* * Copyright 2000-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.oops; import java.io.*; import java.util.*; public class ObjectHistogram implements HeapVisitor { public ObjectHistogram() { map = new HashMap(); } private HashMap map; public void prologue(long size) {} public boolean doObj(Oop obj) { Klass klass = obj.getKlass(); if (!map.containsKey(klass)) map.put(klass, new ObjectHistogramElement(klass)); ((ObjectHistogramElement) map.get(klass)).updateWith(obj); return false; } public void epilogue() {} /** Call this after the iteration is complete to obtain the ObjectHistogramElements in descending order of total heap size consumed in the form of a List<ObjectHistogramElement>. */ public List getElements() { List list = new ArrayList(); list.addAll(map.values()); Collections.sort(list, new Comparator() { public int compare(Object o1, Object o2) { return ((ObjectHistogramElement) o1).compare((ObjectHistogramElement) o2); } }); return list; } public void print() { printOn(System.out); } public void printOn(PrintStream tty) { List list = getElements(); ObjectHistogramElement.titleOn(tty); Iterator iterator = list.listIterator(); int num=0; int totalCount=0; int totalSize=0; while (iterator.hasNext()) { ObjectHistogramElement el = (ObjectHistogramElement) iterator.next(); num++; totalCount+=el.getCount(); totalSize+=el.getSize(); tty.print(num + ":" + "\t\t"); el.printOn(tty); } tty.println("Total : " + "\t" + totalCount + "\t" + totalSize); } }