com.greenpepper.shaded.org.codehaus.janino.tools.HprofScrubber Maven / Gradle / Ivy
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/*
* Janino - An embedded Java[TM] compiler
*
* Copyright (c) 2001-2010, Arno Unkrig
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
* following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.greenpepper.shaded.org.codehaus.janino.tools;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.FieldPosition;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
/**
* Example for object allocation statistics:
*
* java -Xrunhprof:heap=sites,monitor=n,cutoff=0,depth=4 MyClass
*/
@SuppressWarnings({ "rawtypes", "unchecked" }) public final
class HprofScrubber {
private 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 // SUPPRESS CHECKSTYLE JavadocMethod
main(String[] args) throws Exception {
String fileName = args.length == 0 ? "java.hprof.txt" : args[0];
BufferedReader br = new BufferedReader(new FileReader(fileName));
try {
Map sites = new ArrayList();
List samples = new ArrayList();
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),
(String[]) 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() {
@Override public int
compare(Object o1, Object o2) { return ((Site) o2).allocatedBytes - ((Site) o1).allocatedBytes; }
});
int totalAllocatedBytes = 0, totalAllocatedObjects = 0;
for (Site site : ss) {
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 (String stackFrame : stackFrames) {
System.out.println(" " + stackFrame);
}
}
}
}
private static void
dumpSamples(Sample[] ss, Map traces) {
int totalCount = 0;
for (Sample s : ss) totalCount += s.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
// + "% "
// + sample.count
// + " "
// + sample.traceNumber
// );
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 (String stackFrame : stackFrames) System.out.println(" " + stackFrame);
}
}
}
}