New Memory Leak with Update!
I installed OS X 10.8.5 update and Thunderbold Firmware update
on what was a stable server that's only use is local file sharing.
Now machines connected over thunderbolt ethernet ports eat up memory until the server fails,
where machines connected over the internal ethernet port do not.
What can I do to fix this?
Thanks,
peace
Launch the Activity Monitor application. Select All Processes from the menu in the toolbar, if not already selected.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Click the heading of the Real Mem column in the process table twice to sort the table with the highest value at the top. If you don't see that column, select
View ▹ Columns ▹ Real Memory
from the menu bar.
If one process (excluding "kernel_task") is using much more memory than all the others, that could be an indication of a leak. A better indication would be a process that continually grabs more and more real memory over time without ever releasing it. Here is an example of how it's done.
Similar Messages
-
New memory leak with CS4 update?
I just downloaded the CS4 update last night, and was doing my normal photoshop work when I had to re-start the application due to what looks like a memory leak.
Windows XP, 3GHZ dual core ( 45 nm one ), 4 GB RAM, NVidia 9600 GT, no GPU enabled ( still comes up with that error even with newest drivers ).
128MB TIFF file was my source.
I had 3 layers, then copy merged all to another layer so I could liquify.
Liquify was getting REALLY sluggish when trying to zoom, but was usable.
After 10 minutes here, I clicked "ok" to return the results, then it said there wasn't enough memory to do it. So I had to cancel. Process was using right around 2 GB. I saved my PSD file ( around 256 MB ) and closed it. CS4 was still using around 2 GB with no documents open. So I closed CS4 and I had multiple errors pop up saying couldn't export or copy from clipboard because not enough memory.
Brought CS4 back up and loaded in that 256MB psd file, everything was fine.I've been told by support that I need to un-install CS4, and re-install it and the patch in order to rectify my problem. The cause of the problem they are saying is a failed application of the patch.
Is this a bunch of BS to keep me busy for a while? How do I know that the next time everything will install correctly?
This will take some time to do, and I'll have to figure out how to backup all my settings/scripts. -
Memory leaks with Third party classes
Hello all,
This is fairly known problem. But I guess, my problem gives a new dimention to the problem.
I have an application which is developed by me. This application ideally needed to use third party classes ( obviously no source code is supplied ). These third party classes provide extra functionality required.
The problem is, when I don't use third party classes in my application, every thing is fine. When I include third party classes, I am having memory leaks.
Then I tried to investigate memory leaks with Optimizeit tool. It is new to me. As of now, I understood, we can identify where the memory leaks are occuring.
finally the problem is, in order to solve this, I need some patches in the code. But I don't have source code for those classes. How to solve this problem?
For example,
I use a third party classes in my code like this,
ThirdPartyMemoryLeakClass obj = new ThirdPartyMemoryLeakClass();
This 'obj' is made static, as it takes lot of time to create this object. Obviously this object contains several references to other objects, which I can't control.
In the process of reusing this object, I am getting memory leaks.
Any ideas regarding, how one has to deal this type of situations? What are the issues involved with this case? Are there any similar problems, which have been solved? are most welcome.
many thanks for your time.
MadhavDecompile it using jad. Find leak.Yes, I too got the idea and tried to decompile those classes and recompile. I had some problems while recompiling. Is this is the only way to get rid of this problem?
I was refering to powersoft.datawindow.DataStore class. Does any body here has worked on these?
Can you suggest me how to find the memory leak causes? if you were needed to find out memory leak causes, what would be your approach?
Madhav -
It seems there is a memory leak with JPopupMenu. The following program demonstrates this leak. If you run the program, click on show form, and then close the form, the used memory will be GCd appropriately. If you click on show form, then right click on the table to show the popup (even if you dont do anything else with the popup) then close the form, it never GCs the form. I've tried all kinds of crazy things, but I cant seem to find what is keeping the memory from being GCd.
Peter
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.beans.PropertyChangeListener;
import java.text.DecimalFormat;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;
@SuppressWarnings("serial")
public class TriState extends JPanel {
private static final long K = 1024;
private static final long M = K * K;
private static final long G = M * K;
private static final long T = G * K;
protected static int ctr = 1;
private JButton btnShow = new JButton("Show Form");
private JLabel lblMem = new JLabel();
private static final DecimalFormat df = new DecimalFormat("#,##0.#");
protected Timer updateTimer = new Timer();
public TriState() {
this.setLayout(new GridLayout());
add(btnShow);
add(lblMem);
updateTimer.scheduleAtFixedRate(new UpdateTimerTask(), 1000, 1000);
btnShow.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
FrmReferrals fr = new FrmReferrals();
fr.setVisible(true);
class UpdateTimerTask extends TimerTask {
public void run() {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
dumpMemoryUsage();
protected void dumpMemoryUsage() {
System.gc();
Long t = Runtime.getRuntime().totalMemory();
long f = Runtime.getRuntime().freeMemory();
String st = convertToStringRepresentation(t);
String sf = convertToStringRepresentation(f);
String su = convertToStringRepresentation(t - f);
System.out.println("Total:" + st + "(" + t + ") Free:" + sf + "(" + f + ") Used:" + su + "(" + (t - f) + ")");
lblMem.setText(su + "/" + st);
public static String convertToStringRepresentation(final long value) {
final long[] dividers = new long[]{T, G, M, K, 1};
final String[] units = new String[]{"TB", "GB", "MB", "KB", "B"};
if (value < 1)
throw new IllegalArgumentException("Invalid file size: " + value);
String result = null;
for (int i = 0; i < dividers.length; i++) {
final long divider = dividers;
if (value >= divider) {
final double dr = divider > 1 ? (double) value / (double) divider : (double) value;
result = df.format(dr) + units[i];
break;
return result;
private static void createAndShowGUI() {
JFrame frame = new JFrame("SimpleTableDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
TriState newContentPane = new TriState();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
protected class PopupMenu extends JPopupMenu {
public PopupMenu() {
JRadioButtonMenuItem item1 = new JRadioButtonMenuItem(new AbstractAction("Insert Item") {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(e.getActionCommand());
item1.setActionCommand("Insert");
add(item1);
JRadioButtonMenuItem item2 = new JRadioButtonMenuItem(new AbstractAction("Delete Item") {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(e.getActionCommand());
item2.setActionCommand("Delete");
add(item2);
public class FrmReferrals extends JFrame {
public FrmReferrals() {
super();
init();
protected void init() {
jbInit();
protected void closeIt() {
uninit();
// variables here
protected Dimension dimPreferred = new Dimension(1270, 995);
protected JTabbedPane tabbedPane = new JTabbedPane();
protected JTable tblReferrals = null;
protected PopupMenu popMenu = new PopupMenu();
protected void jbInit() {
setPreferredSize(dimPreferred);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setTitle("Referrals");
JPanel pnl = new JPanel();
pnl.setOpaque(false);
pnl.setLayout(new BorderLayout());
pnl.add(tabbedPane, BorderLayout.CENTER);
// put it all in the frame
add(pnl);
pack();
setLocationRelativeTo(null);
// init the table and model
ReferralsTableModel ctm = new ReferralsTableModel(buildDummyVector());
tblReferrals = new JTable(ctm);
tblReferrals.setComponentPopupMenu(popMenu);
tblReferrals.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
tabbedPane.add(new JScrollPane(tblReferrals, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED));
addWindowListener(new WindowListener() {
@Override
public void windowActivated(WindowEvent e) {}
@Override
public void windowClosed(WindowEvent e) {}
@Override
public void windowClosing(WindowEvent e) {
closeIt();
@Override
public void windowDeactivated(WindowEvent e) {}
@Override
public void windowDeiconified(WindowEvent e) {}
@Override
public void windowIconified(WindowEvent e) {}
@Override
public void windowOpened(WindowEvent e) {}
protected Vector<DBO_Referrals> buildDummyVector() {
Vector<DBO_Referrals> vr = new Vector<DBO_Referrals>();
for (int x = 0; x < 5000; x++) {
DBO_Referrals r = new DBO_Referrals(x+(5000*ctr));
vr.add(r);
return vr;
protected void uninit() {
tblReferrals.setComponentPopupMenu(null);
for (Component c : popMenu.getComponents()) {
PropertyChangeListener[] pl = c.getPropertyChangeListeners();
for (PropertyChangeListener l : pl)
c.removePropertyChangeListener(l);
if (c instanceof JMenuItem) {
ActionListener [] al = ((JMenuItem)c).getActionListeners();
for (ActionListener l : al) {
((JMenuItem)c).removeActionListener(l);
popMenu = null;
protected class DBO_Referrals {
protected long id;
protected String Employee;
protected String Rep;
protected String Asst;
protected String Client;
protected String Dates;
protected String Status;
protected String Home;
public DBO_Referrals(long id) {
this.id = id;
Employee = "Employee" + id;
Rep = "Rep" + id;
Asst = "Asst" + id;
Client = "Client" + id;
Dates = "Dates" + id;
Status = "Status" + id;
Home = "Home" + id;
public long getId() {
return id;
public String getEmployee() {
return Employee;
public String getRep() {
return Rep;
public String getAsst() {
return Asst;
public String getClient() {
return Client;
public String getDates() {
return Dates;
public String getStatus() {
return Status;
public String getHome() {
return Home;
public class ReferralsTableModel extends AbstractTableModel {
protected Vector<DBO_Referrals> data = new Vector<DBO_Referrals>();
protected String[] sColumns = {"id", "Employee", "Rep", "Assistant", "Client", "Date", "Status", "Home", "R"};
public ReferralsTableModel() {
super();
public ReferralsTableModel(Vector<DBO_Referrals> data) {
this();
this.data = data;
@SuppressWarnings("unchecked")
@Override
public Class getColumnClass(int col) {
switch (col) {
case 0 :
return Long.class;
default :
return String.class;
@Override
public int getColumnCount() {
return sColumns.length;
@Override
public int getRowCount() {
return data.size();
@Override
public Object getValueAt(int row, int col) {
if (row > data.size())
return null;
DBO_Referrals a = data.get(row);
switch (col) {
case 0 :
return a.getId();
case 1 :
return a.getEmployee();
case 2 :
return a.getRep();
case 3 :
return a.getAsst();
case 4 :
return a.getClient();
case 5 :
return a.getDates();
case 6 :
return a.getStatus();
case 7 :
return a.getHome();
case 8 :
return "+";
default :
return null;BTW instead of continually printing out the memory use a profiler (jvisualvm in the jdk/bin directory -> heapdump -> search on your class -> view in instances -> find nearest GC root).
Looks like BasicPopupMenuUI doesn't remove a reference to the JRootPane immediately. As far as I can see it will be removed when another menu shows.
As a hackish workaround you can try this in you FrmReferrals#uninit():
for(ChangeListener listener : MenuSelectionManager.defaultManager().getChangeListeners()) {
if (listener.getClass().getName().contains("MenuKeyboardHelper")) {
try {
Field field = listener.getClass().getDeclaredField("menuInputMap");
field.setAccessible(true);
field.set(listener, null);
} catch (Exception e) {
// ignored
break;
}Funnily enough though it isn't there when I reduce your code to a SSCCE:
import java.awt.*;
import javax.swing.*;
public class TestBasicPopupMenuUILeak extends JFrame {
public TestBasicPopupMenuUILeak() {
super("Not collected right away");
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(
new JButton(new AbstractAction("Show frame") {
@Override
public void actionPerformed(ActionEvent e) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JLabel label = new JLabel(
"Right click to show popup, then close this frame."
+ "The frame with not be GCed until another (popup) menu is shown.");
JPopupMenu popup = new JPopupMenu(
"Popup");
popup.add("Item");
label.setComponentPopupMenu(popup);
// named differently so you can find it
// easily in your favorite profiler
JFrame frame = new TestBasicPopupMenuUILeak();
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(label);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} -
Memory leak with 1.6.0_07 in applet using Swing
Java Plug-in 1.6.0_07
Using JRE version 1.6.0_07 Java HotSpot(TM) Client VM
Windows XP - SP2
I have a commercial application that has developed a memory leak with the introduction of the latest plugin. The applets chew up memory and eventually freeze. They did not before. Using jvisualm I see a build up of native arrays, primarily int[][] and char[]. I'm still investigating. Anyone have a similar experience?
The Applet uses a swing interface, uses buffered images and swing timers, and regularly performs http connections to the server which result in actions via the SwingUtil.invokeLater() method.I am Using Internet Explorer Browser Version 6.0.Huge security hole.
Its not throwing Error / Exception Wrap a try/catch at the highest level possible.
Catch 'Throwable'. And log/display it somewhere. -
Memory leak with UI automation
Hi,
I noticed there is memory leak with UI automation in my window 8.1.
I noticed there is solution for window 8
http://support.microsoft.com/kb/2885482
Is there any solution for window 8.1?
I really appreciate for any help.Hi,
I'm sorry for didn't hear anything about this issue. I'll try to connect the writer of this KB, hope we can find some suggestion. If there is any progress about this problem, I would come back.
Roger Lu
TechNet Community Support -
Just got new Apple TV with updated OS but no new features showing?like yahoo etc
Just got new Apple TV with updated OS but no new features showing?like yahoo etc
Where are you located? A lot of the features are US only
-
Hello all,
Not sure if this is the right place to post this but here goes. I have a program that needs to change the font of at least 250,000 letters, however after doing this the program runs slow and laggy as if changing the fonts of each letter took up memory and never released it? Here is a compilable example, Click the button at the bottom of the window and watch the letter it is currently working on. You will notice that around 200,000 it will begin to not smoothly count up anymore but count in kind of a skipping pattern. This seems to get worse the more you do it and seems to indicate to me that something is using memory and not releasing it. I'm not sure why replacing a letter's font with a new font would cause more memory to be taken up I would think if I was doing it properly it would simply replace the old font with the new one not taking anymore memory then it did before. Here is the example: This program sometimes locks up so be prepared. If someone could maybe point out what is causing this to take up more memory after changing the fonts that would be great and hopefully find a solution :) Thanks in advance.
-neptune692
* To change this template, choose Tools | Templates
* and open the template in the editor.
package paintsurface;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.util.List;
public class PaintSurface implements Runnable, ActionListener {
public static void main(String[] args) {
SwingUtilities.invokeLater(new PaintSurface());
List<StringState> states = new ArrayList<StringState>();
Tableaux tableaux;
Random random = new Random();
Font font = new Font("Arial",Font.PLAIN,15);
// Point mouselocation = new Point(0,0);
static final int WIDTH = 1000;
static final int HEIGHT = 1000;
JFrame frame = new JFrame();
JButton add;
public void run() {
tableaux = new Tableaux();
for (int i=250000; --i>=0;)
addRandom();
frame.add(tableaux, BorderLayout.CENTER);
add = new JButton("Change Font of letters - memory leak?");
add.addActionListener(this);
frame.add(add, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(WIDTH, HEIGHT);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
public void actionPerformed(ActionEvent e) {
new Thread(new ChangeFonts()).start();
void addRandom() {
tableaux.add(
Character.toString((char)('a'+random.nextInt(26))),
UIManager.getFont("Button.font"),
random.nextInt(WIDTH), random.nextInt(HEIGHT));
//THIS CLASS SEEMS TO HAVE SOME KIND OF MEMORY LEAK I'M NOT SURE?
class ChangeFonts implements Runnable {
public void run() {
Random rand = new Random();
for(int i = 0; i<states.size(); i++) {
font = new Font("Arial",Font.PLAIN,rand.nextInt(50));
states.get(i).font = font;
add.setText("Working on letter - "+i);
class StringState extends Rectangle {
StringState(String str, Font font, int x, int y, int w, int h) {
super(x, y, w, h);
string = str;
this.font = font;
String string;
Font font;
class Tableaux extends JComponent {
Tableaux() {
this.enableEvents(MouseEvent.MOUSE_MOTION_EVENT_MASK);
lagState = createState("Lag", new Font("Arial",Font.BOLD,20), 0, 0);
protected void processMouseMotionEvent(MouseEvent e) {
repaint(lagState);
lagState.setLocation(e.getX(), e.getY());
repaint(lagState);
super.processMouseMotionEvent(e);
StringState lagState;
StringState createState(String str, Font font, int x, int y) {
FontMetrics metrics = getFontMetrics(font);
int w = metrics.stringWidth(str);
int h = metrics.getHeight();
return new StringState(str, font, x, y-metrics.getAscent(), w, h);
public void add(String str, Font font, int x, int y) {
StringState state = createState(str, font, x, y);
states.add(state);
repaint(state);
protected void paintComponent(Graphics g) {
Rectangle clip = g.getClipBounds();
FontMetrics metrics = g.getFontMetrics();
for (StringState state : states) {
if (state.intersects(clip)) {
if (!state.font.equals(g.getFont())) {
g.setFont(state.font);
metrics = g.getFontMetrics();
g.drawString(state.string, state.x, state.y+metrics.getAscent());
if (lagState.intersects(clip)) {
g.setColor(Color.red);
if (!lagState.font.equals(g.getFont())) {
g.setFont(lagState.font);
metrics = g.getFontMetrics();
g.drawString("Lag", lagState.x, lagState.y+metrics.getAscent());
}Here is the block of code that I think is causing the problem:
//THIS CLASS SEEMS TO HAVE SOME KIND OF MEMORY LEAK I'M NOT SURE?
class ChangeFonts implements Runnable {
public void run() {
Random rand = new Random();
for(int i = 0; i<states.size(); i++) {
font = new Font("Arial",Font.PLAIN,rand.nextInt(50));
states.get(i).font = font; // this line seems to cause the problem?
add.setText("Working on letter - "+i);
}neptune692 wrote:
jverd wrote:
You're creating a quarter million distinct Font objects, and obviously you must be hanging on to all of them because each character is having its font set to the newly created object. So if you have 250k chars, you're forcing it to have 250k Font objects.
Since the only difference is that rand.nextInt(50) parameter, just pre-create 50 Font objects with 0..49, stick 'em in the corresponding elements in an array, and use rand.nextInt to select the Font object to use.That does make sense but it does that when the the program is first launched and doesn't lag. But the second and third time you change the letters font it seems to lag so if it wasn't taking up more memory the second time it should perform like it did when it first launched. I don't care to investigate any further. The real problem is almost certainly the quarter million Font objects. It could be that 250k is fine, but by the time you get to 500k, it has to do a lot of GC, and that's where the slow down is coming. You might even be able to make it work better with the code you have just by tweaking the GC parameters at startup, but I wouldn't bother. Fix the code first, and then see if you have issues.
Does creating a new font for each of those letters not replace the old font object? If it didn't use more memory the second and third time I don't think you would see the skipping in the counter and the slowing down of the iterations. So it must be remembering some of the old font objects or am I wrong?Using new always creates a new object. When you do it the second time around, and call letter.setFont(newFont), the old Font object is eligible for GC. That doesn't mean it will be GCed right away though. The JVM can leave them all laying around until it runs out of memory, and then GC some or all of them. -
Memory Leak with Tomcat version update 3.2 to 6.0
Hi, I've been trying to update tomcat from 3.2 to 6.0. My issue is that I have a memory leak(s?) that make the web application unusable. Currently in my setup I am using these components:
Tomcat 6.0, sun JDK 1.6.0_01, mssql 2005, Microsoft SQL Server 2005 JDBC Driver 1.2, xalan 2.7.0, log4j 1.0.4 (should be only out of date component)
It is a fairly large application that uses xslt with xalan and java servlets to display web pages. There was no issue with memory leaks before the update from tomcat 3.2, sun jdk 1.4.2 and old xalan and jdbc (for mssql 2000) components.
My question for the community is, where should I be looking for my memory leak. Are there known issues with my setup?
thanks for your help,
MattJust in case someone goes down the same road as me, my problem was actually the one listed on the page below. My threads are not being released after a StandardContext reload. Which I'm not sure if this leak applies to tomcat version <4 or not.
http://opensource.atlassian.com/confluence/spring/pages/viewpage.action?pageId=2669 -
Memory Leak with the new PatchMix App Beta?
E6300/ASUS P5B-D/2GB RAM/EMU 0404/Vista Ultimate 32bit
The problem happens after I upgrade to the PatchMix driver set dated 9/11.
The physical memory usage bumps from ~24M to 150M after running 24 hours, and I didnt load any FX.
The commit size(real memory usage) is over 500M!
This doesnt happen with the old beta driver.
Anyone has the same problem?Emon wrote:
jreid wrote:
Dare I suggest the problem might be Vista?
Yes? How exactly would Vista cause a memory leak within PatchMix DSP's GUI?
Well, just a thought. The OS is ultimately responsible for all memory management, and also the low-level graphics functions that would be called by e.g. the GUI code. I just noticed that people on XP didn't seem to be having the same problems with this beta. -
Thanks for all the responses for this problem. Here is what I've come
up with so far. I believe I have found the culprit.
1) First, I used the LabVIEW VI profiler with memory tracking enabled.
This didn't show what VI was hogging the memory, so it didn't help. It
reported only 10M of memory was being used, when Windows NT reported
110M in use by LabVIEW.
2) VI references had been mentioned as the possible culprit if the
references had not been closed. I then opened a VI reference at the
beginning of the program, used these references throughout the loop, and
then closed them at the end of the loop. Result: still had a memory
leak.
3) After some troubleshooting, I started deleting some sub-VIs out of
my program to see when
the memory was freed. I thought I could isolate
which VI was hogging the memory. This seemed to have worked, because
I've done it twice, deleting different VIs up to a point, and when I
delete one of them out of the diagram, the memory is freed. This is
what I'll explain below.
Every iteration of the loop, the front panel is converted to a .png file
and saved to the drive for output across the network to any browser
which has connected. Using the LabVIEW/vi.lib/utility/printvi.llb/Get
Panel Image.VI, the front panel can be changed into a .png format. The
next step is where the problem lies. A Java applet is looking for a png
file to download to a browser when a request is made. Therefore, the
panel image which has just been made needs to be saved to a file. The
Graphics & Sound -> Graphics Formats -> Write PNG file.VI is used for
this. This is the VI which is causing the problem. Upon looking at the
VI, it just calls a CIN. Therefore, I'm not sure how to find out why it
is
hogging the memory. If I delete this VI, and I don't save the front
panel to a png file (but I do convert it to png format), I don't have
the memory leak.
Any ideas?
Mark
Sent via Deja.com http://www.deja.com/
Before you buy.I wish I could update to LV 6i, but I can't now. I'm stuck with 5.1.1
for now. I don't know how I could "legally" get the .dll and png write
VI from 6.
Mark
In article <[email protected]>,
"news.t-online.de" wrote:
> Hi Mark,
>
> you are right. It looks like lvpng.dll is causing the problem.
>
> Are you able to switch to LabVIEW6? The lvpng.dll has been changed
> and I didn't see the memory leak here. You can also try to use only
the
> Write PNG File.VI and/or lvpng.dll shipped with labview 6 instead of
> porting the complete application to labview 6.
>
> Martin
>
> --
> Martin Henz Systemtechnik
> Dipl. Ing. (FH) Martin Henz
> Walchensee Str. 3
> 70378 Stuttgart
> Tel. ++49-711-5302605
> Fax ++49-711-5058649
> http://www.mhst.de
> schrieb im Newsbeitrag
news:[email protected]...
> > Thanks for all the responses for this problem. Here is what I've
come
> > up with so far. I believe I have found the culprit.
> >
> > 1) First, I used the LabVIEW VI profiler with memory tracking
enabled.
> > This didn't show what VI was hogging the memory, so it didn't help.
It
> > reported only 10M of memory was being used, when Windows NT reported
> > 110M in use by LabVIEW.
> >
> > 2) VI references had been mentioned as the possible culprit if the
> > references had not been closed. I then opened a VI reference at the
> > beginning of the program, used these references throughout the loop,
and
> > then closed them at the end of the loop. Result: still had a memory
> > leak.
> >
> > 3) After some troubleshooting, I started deleting some sub-VIs out
of
> > my program to see when the memory was freed. I thought I could
isolate
> > which VI was hogging the memory. This seemed to have worked,
because
> > I've done it twice, deleting different VIs up to a point, and when I
> > delete one of them out of the diagram, the memory is freed. This is
> > what I'll explain below.
> >
> > Every iteration of the loop, the front panel is converted to a .png
file
> > and saved to the drive for output across the network to any browser
> > which has connected. Using the
LabVIEW/vi.lib/utility/printvi.llb/Get
> > Panel Image.VI, the front panel can be changed into a .png format.
The
> > next step is where the problem lies. A Java applet is looking for a
png
> > file to download to a browser when a request is made. Therefore,
the
> > panel image which has just been made needs to be saved to a file.
The
> > Graphics & Sound -> Graphics Formats -> Write PNG file.VI is used
for
> > this. This is the VI which is causing the problem. Upon looking at
the
> > VI, it just calls a CIN. Therefore, I'm not sure how to find out
why it
> > is hogging the memory. If I delete this VI, and I don't save the
front
> > panel to a png file (but I do convert it to png format), I don't
have
> > the memory leak.
> >
> > Any ideas?
> >
> > Mark
> >
> >
> > Sent via Deja.com http://www.deja.com/
> > Before you buy.
>
>
Sent via Deja.com http://www.deja.com/
Before you buy. -
This is very unusual for my Mab Desktops to do, but all I can figure is that there is a memory leak in the latest update 10.6.4 and that it is effecting everything.
I ran a few apps on Friday night, closed then down but left the computer running. This morning, I tried the same apps and they would'nt load. I had to restart the computer to get them to work. The same thing happened on Thursday. I've fixed permissions so I can rule that out, unless of course it's the RAM it's self but I've ran tests on that and the software says that it's ok.
Any suggestions would be appreciated on this subject.Can you open them, close them, and then immediately reopen them?
Are they crashing or just bouncing in the Dock and never opening?
Open Console and scroll down the log list and look for Diagnostic Reports. See if there are any logs related to the apps or the times the programs didn't open. There are a few sections with Diagnostic Reports. If they full up crash, there should be something under CrashReporter. -
Memory leak with CursoredStream
I want, first, to write a large collection of data in a file, and second, remove all these data.
I use CursoredStream to manage them.
I first use mark() method before iterate throw values with
while (hasMoreElements()) { nextElement(); }
loop, and second use reset() method to move back to first row before iterate again.
I can only use releasePrevious() method in the second iteration to avoid memory leak. But the first iteration creates objects that are not released.
If I use this method in the first iteration, I can't iterate the second times.
Is it a bug?
Is there a way to destroy all the created objects?Once you call releasePrevious() those objects are released and can only be accessed from a new query.
What is the IdentityMap type you have set in your project for the class you are reading and the related classes, if the class has no reference to it (from other classes) you will want to use no-identity map. If there are references then you will want to use WeakIdentityMap.
The second time you iterate through the Cursor you will be retrieving the same instance of objects as the first time, no extra memory will be used.
--Gordon -
Memory leak with File Write.vi
Hi All,
I am trying to save a big data cluster, which includes images, into a data log file. The vis I use are: New File.vi, Write File.vi, Close File.vi.
The problem is Write File.vi has memory leak when the data cluster includes images .
Anyone sees similar case? Any solution?
Thanks.
AiqiuAiqiu,
I am glad you found out about flattening your image to a string. I was about to post and say that you probably didn't want to save the IMAQ image reference to a file, because after you closed the image in memory, there wouldn't be anything for the IMAQ image reference to point to. You are correct to flatten the image to a string. Below is a link to a document which discusses doing this to communicate over datasocket, but the processes of flattening the image to a string is the same regardless of whether or not you are sending the image across a datasocket connection or saving to a file.
Transfering Images with DataSocket
As for the memory leak. I am pretty sure that if you passed all of the IMAQ Image references created in the "Image Init Buffer.vi" subVI and then closed each reference individually, that the memory leak would probably go away.
Lorne Hengst
Application Engineer
National Instruments -
Memory Leak with Picture Control
Hi all
There is bug with Picture Control
When you insert you picture data in loop into the shift register, memory leak
Can somebody to prevent this bug?
Run attached example and look at Task Manager
Attachments:
Picture Memory Leak Example.vi 24 KBI believe David properly called the cause of this memory consumption.
In reply # 52 of thsi thread,
http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=5&jump=true
I posted an example that inserts 130 FP object images in a picture and moves them around (it is a random walk where each object is assigned a letter and the program terminates when all of the letters required to spell out "Hello World" wander into the trap at the bottom.)
A snippet of the code follows.
A) Start with a blank picture
B) Inster all of the images
C) show the updated image.
Other links to LV Picture control examples can be found in this thread.
http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=14&jump=true
Ben
Message Edited by Ben on 01-14-2007 08:58 AM
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction
Attachments:
Many_Objects.JPG 24 KB
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