/*
* Janino - An embedded Java[TM] compiler
* Copyright (C) 2001-2004 Arno Unkrig
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information:
* Arno Unkrig
* Ferdinand-Miller-Platz 10
* 80335 Muenchen
* Germany
* http://www.janino.net
* maintainer@janino.net
*/
package net.janino.tools;
import java.io.*;
import java.text.FieldPosition;
import java.text.MessageFormat;
import java.util.*;
/**
* Example for object allocation statistics:
*
* java -Xrunhprof:heap=sites,monitor=n,cutoff=0,depth=4 MyClass
*/
public class HprofScrubber {
private static class Site {
public final int allocatedBytes;
public final int allocatedObjects;
public final int traceNumber;
public final String className;
public Site(int allocatedBytes, int allocatedObjects, int traceNumber, String className) {
this.allocatedBytes = allocatedBytes;
this.allocatedObjects = allocatedObjects;
this.traceNumber = traceNumber;
this.className = className;
}
}
private static class Sample {
public final int count;
public final int traceNumber;
public Sample(int count, int traceNumber) {
this.count = count;
this.traceNumber = traceNumber;
}
}
public static void main(String[] args) throws Exception {
String fileName = args.length == 0 ? "java.hprof.txt" : args[0];
BufferedReader br = new BufferedReader(new FileReader(fileName));
try {
Map traces = new HashMap(); // Integer number => String[] stackFrames
List sites = new ArrayList(); // Site
List samples = new ArrayList(); // Sample
String s = br.readLine();
while (s != null) {
if (s.startsWith("SITES BEGIN")) {
br.readLine();
br.readLine();
for (;;) {
s = br.readLine();
if (s.startsWith("SITES END")) break;
StringTokenizer st = new StringTokenizer(s);
st.nextToken(); // rank
st.nextToken(); // percent self
st.nextToken(); // percent accum
st.nextToken(); // live bytes
st.nextToken(); // live objects
sites.add(new Site(
Integer.parseInt(st.nextToken()), // allocatedBytes
Integer.parseInt(st.nextToken()), // allocatedObjects
Integer.parseInt(st.nextToken()), // traceNumber
st.nextToken() // className
));
}
} else
if (s.startsWith("TRACE ") && s.endsWith(":")) {
int traceNumber = Integer.parseInt(s.substring(6, s.length() - 1));
List l = new ArrayList();
for (;;) {
s = br.readLine();
if (!s.startsWith("\t")) break;
l.add(s.substring(1));
}
traces.put(
new Integer(traceNumber),
l.toArray(new String[l.size()])
);
} else
if (s.startsWith("CPU SAMPLES BEGIN")) {
br.readLine();
for (;;) {
s = br.readLine();
if (s.startsWith("CPU SAMPLES END")) break;
StringTokenizer st = new StringTokenizer(s);
st.nextToken(); // rank
st.nextToken(); // percent self
st.nextToken(); // percent accum
int count = Integer.parseInt(st.nextToken());
if (count == 0) continue;
int trace = Integer.parseInt(st.nextToken());
samples.add(new Sample(count, trace));
}
} else {
s = br.readLine();
}
}
HprofScrubber.dumpSites((Site[]) sites.toArray(new Site[sites.size()]), traces);
HprofScrubber.dumpSamples((Sample[]) samples.toArray(new Sample[samples.size()]), traces);
} finally {
try { br.close(); } catch (IOException e) {}
}
}
private static void dumpSites(Site[] ss, Map traces) {
Arrays.sort(ss, new Comparator() {
public int compare(Object o1, Object o2) {
return ((Site) o2).allocatedBytes - ((Site) o1).allocatedBytes;
}
});
int totalAllocatedBytes = 0, totalAllocatedObjects = 0;
for (int i = 0; i < ss.length; ++i) {
Site site = ss[i];
totalAllocatedBytes += site.allocatedBytes;
totalAllocatedObjects += site.allocatedObjects;
}
System.out.println(" percent alloc'ed");
System.out.println("rank self accum bytes objects class name");
System.out.println("Total: " + totalAllocatedBytes + " " + totalAllocatedObjects);
double accumulatedPercentage = 0.0;
MessageFormat mf = new MessageFormat("{0,number,00000} {1,number,00.00}% {2,number,00.00}% {3,number,000000000} {4,number,000000000} {5}");
for (int i = 0; i < ss.length; ++i) {
Site site = ss[i];
double selfPercentage = 100.0 * ((double) site.allocatedBytes / (double) totalAllocatedBytes);
accumulatedPercentage += selfPercentage;
// System.out.println((i + 1) + " " + selfPercentage + "% " + accumulatedPercentage + "% " + site.allocatedBytes + " " + site.allocatedObjects + " " + site.className);
System.out.println(mf.format(
new Object[] {
new Integer(i + 1),
new Double(selfPercentage),
new Double(accumulatedPercentage),
new Integer(site.allocatedBytes),
new Integer(site.allocatedObjects),
site.className
},
new StringBuffer(),
new FieldPosition(0)
));
String[] stackFrames = (String[]) traces.get(new Integer(site.traceNumber));
if (stackFrames != null) {
for (int j = 0; j < stackFrames.length; ++j) {
System.out.println(" " + stackFrames[j]);
}
}
}
}
private static void dumpSamples(Sample[] ss, Map traces) {
int totalCount = 0;
for (int i = 0; i < ss.length; ++i) totalCount += ss[i].count;
System.out.println(" percent");
System.out.println("rank self accum count");
System.out.println("Total: " + totalCount);
double accumulatedPercentage = 0.0;
MessageFormat mf = new MessageFormat("{0,number,00000} {1,number,00.00}% {2,number,00.00}% {3,number,000000000}");
for (int i = 0; i < ss.length; ++i) {
Sample sample = ss[i];
double selfPercentage = 100.0 * ((double) sample.count / (double) totalCount);
accumulatedPercentage += selfPercentage;
// System.out.println((i + 1) + " " + selfPercentage + "% " + accumulatedPercentage + "% " + site.allocatedBytes + " " + site.allocatedObjects + " " + site.className);
System.out.println(mf.format(
new Object[] {
new Integer(i + 1),
new Double(selfPercentage),
new Double(accumulatedPercentage),
new Integer(sample.count)
},
new StringBuffer(),
new FieldPosition(0)
));
String[] stackFrames = (String[]) traces.get(new Integer(sample.traceNumber));
if (stackFrames != null) {
for (int j = 0; j < stackFrames.length; ++j) {
System.out.println(" " + stackFrames[j]);
}
}
}
}
}