Memory-Leak in communication of Acrobat-Flash and JS
Hi
The situation is as follows:
I have a Flash-SWF (in which I have programmed a GUI)
I have a 3D-Annotation containing an annotation-script with some functions that can be called from the GUI.
So far so good.
The SWF is added as overlay to a 3D-Annotation. The SWF contains some AS3-Functions, among them an enterframe-event, that keeps repeating an external-interface call to a function in the 3D Annotation-script. It works so far.
When I tested for performance however I noticed that there is a memory-leak under these conditions. I tested my setup, and noticed the memory-useage increase by about 1 MB every 3 seconds. To further test this I stripped about everything from both the swfs Actionscript and the annotation-JavaScript. Still the memory-useage of process "acrobat.exe*32" gradually climbs by 7-10 MB per minute. The memory-useage of "A3DUtility.exe" remains constant. Deactivating the annotation will decrease the memory-useage by a certain amount (though not to the initial value upon opening the file and starting the annotation) , but upon re-activating it immediately jumps back to the value assumed last before deactivating it. From that last value the increase starts again as well. I could observe this behaviour both in Acrobat 9 Pro Extended, Acrobat X and ReaderX.
It seems something is wrong with the ExternalInterface-Object.
OK, I'll do that.
By the way, imho it's not that minor. ~1mb in two seconds sums up to ~30mb/minute, i.e. 2gb/hour. So if you leave your PDF open for some 15 minutes that's 500mb ram down the drain. Considering the file started at merely 30mb that's quite massive.
Similar Messages
-
Memory Leak Issue With Win7 64 bit and Youtube.
I have a Win7 64 bit using IE9 with version 11.4.402.265 installed. 4 MB installed.
Whenever I go to Youtube or Liveleak, and watch videos, over time it uses up to 4gigs of my memory! Even if I close the window, it does not free up the memory until I Ctrl/Alt/Delete and shut down the window(s).
I normally only keep open 1-2 windows. Google toolbar is about the only thing installed. I can open 5 and more tabs, but as long as the site does not use flash, I don't have issues and each window usually uses under 200k memory watching them in task manager.
When I go to open and watch a youtube video, it slowly climbs to 200k and within an hour, I can be at 2 gigs or more memory and up to 4 gigs within 2 hours (or sometimes much sooner). Closing the window does not release the memory until I end task on it and then after a minute or so, the memory seems to clear and everything is back to normal.
I searched the forums and seems lots of users, report memory leaks, some using yahoo toolbar installed, which is not my case. I do use yahoo as my e-mail address, no idea if that is related or not. I had the same issue when I had the prior Flash version installed, this has been going on for months. Right now having only this window open, using 129, 192 memory. If I open one more window (using the 64 or 32 bit browser) and start youtube, the memory in that window keeps climbing about 50-100kb a second, so it adds up quickly. I have kaspersky running in the background and that is about it other then my nvida driver setup.
Really frustrating that so many people here and across the internet have reported this. I did have IE8 a few weeks ago and still had the same issue, upgraded to IE9 to see if that helped.
Interesting side note, if I pause a video, it slows way down on the memory leak, but still rises at a slower pace. I don't know if this is an IE thing or Flash. I have had this setup since 2009 and don't recall having issues with IE7. I use Youtube so much as a teaching instrument as a music teacher, so constantly have lessons going on it.
Thanks and hope someone has come up with something. I also build computers and have done some programming, so I could modify a file if needed with clear instructions.This could be similar to bug https://bugbase.adobe.com/index.cfm?event=bug&id=3334814
-
Memory leak problems with loading videos over and over.
I'm having memory leak problems with loading videos into a VideoPlayer aswell as FLVPlayback.
What the flash should do:
- Should be running for 7 days without having to restart the projector.
- Interface that shows people around a 360 3D model with 5 different parts and at the stops it makes during the rotation you can click to zoom in on a location which plays a movie for that aswell.
- Shows a video out of 5 parts for a 360 rotation in 3D in mp4 video (added each time and cleaned up, see code below).
- Still images are used when the video clips are done playing (MovieClip in stage).
- Should run automatically when there is no user interaction for X minutes.
What the problem is:
- The flash (as a exe and swf i guess) starts to consume memory over time (say 10 hours) until the projector crashes. This usually at around 1.75 GB of memory.
I cannot see why the Flash cannot garbage collect this and free up the memory. Mabye there is something I don't understand about the garbage collection in flash?
Here is some code from the video loading and playing:
var fVideo:VideoPlayer;
VideoCreate();
function VideoReady(pEvent:VideoEvent):void
trace("VideoReady()");
// start playing video
fVideo.play();
function VideoLoad(pUrl:String):void
trace("VideoLoad(" + pUrl +
VideoCreate();
if (pUrl != "")
if (fVideoFolder + pUrl == fVideo.source)
fVideo.seek(0);
VideoReady(null);
} else {
trace(fVideo.state);
if (fVideo.state !=
VideoState.DISCONNECTED) fVideo.stop();
fVideo.close();
fVideo.load(fVideoFolder + pUrl);
} else {
// error no url
function VideoCreate():void
trace("VideoCreate()");
// remove old one
if (getChildAt(0) == fVideo)
removeChildAt(0);
fVideo = new
VideoPlayer(1024, 768);
addChildAt(fVideo, 0);
fVideo.autoRewind = false;
fVideo.addEventListener(VideoEvent.COMPLETE, VideoDonePlaying);
fVideo.addEventListener(VideoEvent.READY, VideoReady);Hmm. It's in connection with Dropbox. Så apparantly you can only use one of the two at the same time if you want the programs integrated in Finder.
-
Memory leak when using database connectivity toolset and ODBC driver for MySQL
The "DB Tools Close Connection VI" does not free all the memory used when "DB Tools Open Connection VI" connects to "MySQL ODBC Driver 3.51".
I have made a small program that only opens and close the connection that I run continously and it's slowly eating all my memory. No error is given from any of the VI's. (I'm using the "Simple Error Handler VI" to check for errors.)
I've also tried different options in the DSN configuration without any results.
Attachments:
TestProgram.vi 16 KB
DSNconfig1.jpg 36 KB
DSNconfig2.jpg 49 KBAlso,
I've duplicated the OPs example: a simple VI that opens and closes a connection. I can say this definately causes a memory leak.
Watching the memory:
10:17AM - 19308K
10:19AM - 19432K
10:22AM - 19764K
10:58AM - 22124K
Regards,
Ken
Attachments:
OpenCloseConnection.vi 13 KB -
Huge memory leaks in using PL/SQL tables and collections
I have faced a very interesting problem recently.
I use PL/SQL tables ( Type TTab is table of ... index by binary_integer; ) and collections ( Type TTab is table of ...; ) in my packages very widely. And have noticed avery strange thing Oracle does. It seems to me that there are memory leaks in PGA when I use PL/SQL tables or collections. Let me a little example.
CREATE OR REPLACE PACKAGE rds_mdt_test IS
TYPE TNumberList IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
PROCEDURE test_plsql_table(cnt INTEGER);
END rds_mdt_test;
CREATE OR REPLACE PACKAGE BODY rds_mdt_test IS
PROCEDURE test_plsql_table(cnt INTEGER) IS
x TNumberList;
BEGIN
FOR indx IN 1 .. cnt LOOP
x(indx) := indx;
END LOOP;
END;
END rds_mdt_test;
I run the following test code:
BEGIN
rds_mdt_test.test_plsql_table (1000000);
END;
and see that my session uses about 40M in PGA.
If I repeat this example in the same session creating the PL/SQL table of smaller size, for instance:
BEGIN
rds_mdt_test.test_plsql_table (1);
END;
I see again that the size of used memory in PGA by my session was not decreased and still be the same.
The same result I get if I use not PL/SQL tables, but collections or varrays.
I have tried some techniques to make Oracle to free the memory, for instance to rewrite my procedure in the following ways:
PROCEDURE test_plsql_table(cnt INTEGER) IS
x TNumberList;
BEGIN
FOR indx IN 1 .. cnt LOOP
x(indx) := indx;
END LOOP;
x.DELETE;
END;
or
PROCEDURE test_plsql_table(cnt INTEGER) IS
x TNumberList;
BEGIN
FOR indx IN 1 .. cnt LOOP
x(indx) := indx;
END LOOP;
FOR indx in 1 .. cnt LOOP
x.DELETE(indx);
END LOOP;
END;
or
PROCEDURE test_plsql_table(cnt INTEGER) IS
x TNumberList;
empty TNumberList;
BEGIN
FOR indx IN 1 .. cnt LOOP
x(indx) := indx;
END LOOP;
x := empty;
END;
and so on, but result was the same.
This is a huge problem for me as I have to manipulate collections and PL/SQL tables of very big size (from dozens of thousand of rows to millions or rows) and just a few sessions running my procedure may cause server's fall due to memory lack.
I can not understand what Oracle reseveres such much memory for (I use local variables) -- is it a bug or a feature?
I will be appreciated for any help.
I use Oracle9.2.0.1.0 server under Windows2000.
Thank you in advance.
Dmitriy.Thank you, William!
Your advice about using DBMS_SESSION.FREE_UNUSED_USER_MEMORY was very useful. Indeed it is the tool I was looking for.
Now I write my code like this
declare
type TTab is table of ... index binary_integer;
res TTab;
empty_tab TTab;
begin
res(1) := ...;
res := empty_tab;
DBMS_SESSION.FREE_UNUSED_USER_MEMORY;
end;
I use construction "res := empty_tab;" to mark all memory allocated to PL/SQL table as unused according to Tom Kyte's advices. And I could live a hapy life if everything were so easy. Unfortunately, some tests I have done showed that there are some troubles in cleaning complex nested PL/SQL tables indexed by VARCHAR2 which I use in my current project.
Let me another example.
CREATE OR REPLACE PACKAGE rds_mdt_test IS
TYPE TTab0 IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
TYPE TRec1 IS RECORD(
NAME VARCHAR2(4000),
rows TTab0);
TYPE TTab1 IS TABLE OF TRec1 INDEX BY BINARY_INTEGER;
TYPE TRec2 IS RECORD(
NAME VARCHAR2(4000),
rows TTab1);
TYPE TTab2 IS TABLE OF TRec2 INDEX BY BINARY_INTEGER;
TYPE TStrTab IS TABLE OF NUMBER INDEX BY VARCHAR2(256);
PROCEDURE test_plsql_table(cnt INTEGER);
PROCEDURE test_str_tab(cnt INTEGER);
x TTab2;
empty_tab2 TTab2;
empty_tab1 TTab1;
empty_tab0 TTab0;
str_tab TStrTab;
empty_str_tab TStrTab;
END rds_mdt_test;
CREATE OR REPLACE PACKAGE BODY rds_mdt_test IS
PROCEDURE test_plsql_table(cnt INTEGER) IS
BEGIN
FOR indx1 IN 1 .. cnt LOOP
FOR indx2 IN 1 .. cnt LOOP
FOR indx3 IN 1 .. cnt LOOP
x(indx1) .rows(indx2) .rows(indx3) := indx1;
END LOOP;
END LOOP;
END LOOP;
x := empty_tab2;
dbms_session.free_unused_user_memory;
END;
PROCEDURE test_str_tab(cnt INTEGER) IS
BEGIN
FOR indx IN 1 .. cnt LOOP
str_tab(indx) := indx;
END LOOP;
str_tab := empty_str_tab;
dbms_session.free_unused_user_memory;
END;
END rds_mdt_test;
1. Running the script
BEGIN
rds_mdt_test.test_plsql_table ( 100 );
END;
I see that usage of PGA memory in my session is close to zero. So, I can judge that nested PL/SQL table indexed by BINARY_INTEGER and the memory allocated to it were cleaned successfully.
2. Running the script
BEGIN
rds_mdt_test.test_str_tab ( 1000000 );
END;
I can see that plain PL/SQL table indexed by VARCHAR2 and memory allocated to it were cleaned also.
3. Changing the package's type
TYPE TTab2 IS TABLE OF TRec2 INDEX BY VARCHAR2(256);
and running the script
BEGIN
rds_mdt_test.test_plsql_table ( 100 );
END;
I see that my session uses about 62M in PGA. If I run this script twice, the memory usage is doubled and so on.
The same result I get if I rewrite not highest, but middle PL/SQL type:
TYPE TTab1 IS TABLE OF TRec1 INDEX BY VARCHAR2(256);
And only if I change the third, most nested type:
TYPE TTab0 IS TABLE OF NUMBER INDEX BY VARCHAR2(256);
I get the desired result -- all memory was returned to OS.
So, as far as I can judge, in some cases Oracle does not clean complex PL/SQL tables indexed by VARCHAR2.
Is it true or not? Perhaps there are some features in using such way indexed tables? -
HT203175 Is anyone having memory leak issues with 64bit Windows 7 and iTunes?
iTunes runs for a period of time and then a dialog box appears. It takes longer if you let the program change tracks as in a playlist. You can accelerate the process by picking a new song after they play for a while (double click). Eventually, you get a dialog box that states - The iTunes Library file cannot be saved. An unknown error occured (-50). Eventually, the program locks up.
One thing that you can try that i read was disable the iTunesHelper.exe program either by the msconfig program or just disable the service. Appearently this can cause a similar issue. All this program does is open iTunes when you connect your iPod to your USB port. I am wondering what 64bit patches you guys are on? Maybe if you list them we can figure out if some Microsoft patch is causing this issue, a circumstance, or bad programming from Apple. I will review my system and list my patches tomorrow. I dont remember this always happening, nor do I remember it only happening after an upgrade to the iTunes.exe or iTunes files. Sometimes, things seems a certain way until you really find out their root cause. I am still trying to find some time to finish debugging the application. I didnt realize how big the symbols directory was for Microsoft. I am finding myself juggling disk space since i am using a laptop.
-
Detect memory leak in JNI so files for linux and Solaris
I have to find the memory leaks in the JNI for solaris and linux but the issue is
i need to find the leaks in the so files.I have solved the issues of leaks using Purify
on windows but not getting appropriate support for linux. Any pointers to tools will help.I tried Valgrind on linux but it is not giving me the exact location of leak as in purify and also the support for purify is for 32 bit only.Valgrind is not showing any functions in .so files.JNI is not supported in Purify for Solaris? Please Help.amol28 wrote:
I have to find the memory leaks in the JNI for solaris and linux but the issue is
i need to find the leaks in the so files.I have solved the issues of leaks using Purify
on windows but not getting appropriate support for linux. Any pointers to tools will help.I tried Valgrind on linux but it is not giving me the exact location of leak as in purify and also the support for purify is for 32 bit only.Valgrind is not showing any functions in .so files.JNI is not supported in Purify for Solaris? Please Help.If you have written the JNI, the JNI itself (java calls, methods, etc) to be OS agnostic then it shouldn't matter. In that case you check the windows code (not jni), the linux code (not jni) and the jni code itself independent of each other.
If you haven't made the JNI OS agnostic the question would be why not? -
Firefox memory leak, how to fix?
I've noticed i've been having memory leaks since quite a few versions before the latest one (33.1.1) and the problem still continues, i notice this more when i leave firefox open for awhile, sometimes only with youtube and couple of other "static" pages on, but i've got the same results without youtube.
Today i decided to ask the question, since i haven't seen any memory leak bugfixes in the recent changelogs and it becomes quite a problem to me because i leave it all day open and when it happens it forces me to restart (not really forces but i don't like having an 1.3GB process when i can have the same for 500~ ...)
I don't believe any of my extras are the reason for it, i've tested them over the pass'ed versions, removed a few, installed a few, always same problem.
All of this running WIndows 7 Ultimate 64-bits .
i've researched and found it's a "common" problem, but no really solution or expected bugfix soon or anything, i'm still to test it without any 3rd part extensions or plugins, but i don't (think) have any extensions that may cause this because like i said, i've changed them quite a few times.
Here is my extension list: http://i.imgur.com/Rk80ajU.png
Here is my plugin list: http://i.imgur.com/GBA0qgY.png
And here is a "Measure" report from "about:memory" : http://privatepaste.com/bcd17c1093
I just want to know why it leaks so badly, almost the double RAM it would normally use.
Currently i'm like 3 tabs with 1.25 GB (Private Set) used, when i close a few tabs, it keeps stable or even rising by a few mb.
I hope there's something useful with that report/my extensions|plugins.
Thanks for the reading.I heard about that extension "problem" but, when i see on "about:addons-memory" from a third-party extension (that i can't remember but yo can see it in the link on OP, it only uses few megabytes (20~) , so, either it's a memory leak on the extension (if that's really the cause) a problem with my addon to view the extensions memory or a firefox one.
But i seriously don't expect that extension eats up all of this memory, but i will test it in a couple of days. -
Hi all, i am experiencing memory leaks while using tomcat 5.5 and mysql connector 3.1.7.. While running the attached code tomcat swallows up to 20 mb and doesnt return it. I close down everything but the app still leaks mem. For now it's not an issue (Tomcat stays below 60mb mem of 1gb), however running this app on serveral clients will dramatically increase the memory allocation.
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class Thumbs extends HttpServlet {
private String dbDriver = "com.mysql.jdbc.Driver";
private String dbURL = "jdbc:mysql://localhost/webapp?";
private String userID = "javauser";
private String passwd = "javadude";
private Connection dbConnection;
//Initialize global variables
public void init() throws ServletException {
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
String maxDim = "";
String siteString = request.getParameterValues("s")[0];
if (request.getParameterValues("d") != null){
maxDim = request.getParameterValues("d")[0];
if (maxDim == ""){
response.setContentType("image/jpeg");
OutputStream out = response.getOutputStream();
writePicture(out,siteString);
else{
if (siteString != null) {
int maxDimension = Integer.parseInt(maxDim);
response.setContentType("image/jpeg");
OutputStream out = response.getOutputStream();
writeThumbnailPicture(out, siteString, maxDimension);
} catch (Exception ex){
ex.printStackTrace();
log(ex.getMessage());
public void writePicture(OutputStream out, String siteID){
try{
Class.forName(dbDriver);
dbConnection = DriverManager.getConnection(dbURL, userID, passwd);
PreparedStatement stmt = dbConnection.prepareStatement("select * from webcatalog where ID = ?");
stmt.setString(1,siteID);
stmt.executeQuery();
ResultSet rs = stmt.getResultSet();
if (rs.next()) {
byte[] data = rs.getBytes("Picture");
if (data != null) {
Image inImage = new ImageIcon(data).getImage();
BufferedImage outImage = new BufferedImage(inImage.getWidth(null),
inImage.getHeight(null),
BufferedImage.TYPE_INT_RGB);
// Paint image.
Graphics2D g2d = outImage.createGraphics();
g2d.drawImage(inImage,null,null);
// JPEG-encode the image
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(outImage);
out.close();
rs.close();
stmt.close();
dbConnection.close();
}catch(Exception ex){
ex.printStackTrace();
public void writeThumbnailPicture(OutputStream out,String siteID,int maxDimension){
try{
Class.forName(dbDriver);
dbConnection = DriverManager.getConnection(dbURL, userID, passwd);
PreparedStatement stmt = dbConnection.prepareStatement("select * from webcatalog where ID = ?");
stmt.setString(1,siteID);
stmt.executeQuery();
ResultSet rs = stmt.getResultSet();
if (rs.next()) {
byte[] data = rs.getBytes("Picture");
if (data != null) {
Image inImage = new ImageIcon(data).getImage();
// Determine the scale.
double scale = (double)maxDimension / (double)inImage.getHeight(null);
if (inImage.getWidth(null) > inImage.getHeight(null)) {
scale = (double)maxDimension /(double)inImage.getWidth(null);
// Determine size of new image.
// One of them should equal maxDim.
int scaledW = (int)(scale*inImage.getWidth(null));
int scaledH = (int)(scale*inImage.getHeight(null));
// Create an image buffer in
//which to paint on.
BufferedImage outImage = new BufferedImage(scaledW, scaledH,
BufferedImage.TYPE_INT_RGB);
// Set the scale.
AffineTransform tx = new AffineTransform();
// If the image is smaller than
// the desired image size,
// don't bother scaling.
if (scale < 1.0d) {
tx.scale(scale, scale);
// Paint image.
Graphics2D g2d = outImage.createGraphics();
g2d.drawImage(inImage, tx, null);
g2d.dispose();
// JPEG-encode the image
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(outImage);
out.close();
rs.close();
stmt.close();
dbConnection.close();
catch(Exception ex){
ex.printStackTrace();
//Clean up resources
public void destroy() {
private void jbInit() throws Exception {
}you can try this:
open your connection outside the function, and then pass it like as a parameter...
writePicture(OutputStream out, String siteID, Connection conn)
this can solve the problem because opening the connection inside the function spends a lot of memory...
Hope this can help you
Regards
Fernando -
Hi,
I am getting a jvm Memory Leak when i try to load and parse XMLs. The version of JDK is 1.4.1_05. Has anyone faced this problem?
Any pointers to this will be very helpful.
Thanks
RajdeepThere is at least one bug associated with xml (although not because of it) which usually makes an appearance in long running applications.
http://forum.java.sun.com/thread.jsp?forum=31&thread=351925
If this is an internal application you could conceivably replace the StringBuffer class yourself to fix this. -
Memory Leak in Publish-Subscribe Notification
I am using publish-subscribe notification for async-notification on LINUX( ORACLE 8.1.7). Before doing it, I read a document(OCI Programmer!/s Guide) about publish-subscribe notification(chap.9).
I created Queue(AQ) in database and registered callback function using 'OCISubscriptionRegister()'.
All operations are done succesfully , but when OCISubscriptionRegister() is called, memory leak seems to occur. I check up the memory leak using LINUX system call( 'top' and 'vmstat' ).
Does anyone have any idea or experience of this problem?<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Lee Sung-won ([email protected]):
Thanks for your reply..
I have something to ask you. where can I get a document listing the bug?<HR></BLOCKQUOTE>
null -
Well this is an odd one I must say.
I have an application where I would like the front panel to disappear
at the user's discretion so it's not in the way while it's processing
information in the background. To process the information I have
a custom DLL and to check the progress of the custom DLL, I have a
routine that I can call that will return the status. So the
information processor is called and it just runs in the background, and
then the status routine is called in a parallel loop until the status
routine determines that the processing is finished. When the
status routine says it's done, the parallel loop exits and another
routine sets a flag for the processor to exit (so everything quits).
In order to make the DLL calls work right as far as execution
sequencing, they are called as re-entrant. I stumbled across that
orginally because it was locking things up when I was trying to call
them in parallel.
I have no memory leaks in the external DLL calls and this is verifiable
by running the processing routine indefinitely while checking the
status indefinitely. The problem is when I open a VI reference to
the main VI then make it's front panel not visible. At that
point, memory usage starts increasing by 400k/sec (which is larger than
the entire DLL). It will eventually just crash the system.
If I set the front panel to be closed on a timer (for several seconds
say), the memory usage will increase for that amount of time and then
stop once the FP is opened again.
I know this is really difficult without having some code to look at but
it would be really hard for me to dumb down the code to get the problem
in a simple set of VI's to look at. I'm wondering however if the
reentrant DLL calls are having some weird interaction with windows
since I'm guessing at a lower level, the application's window handle is
invalidated when the front panel is closed. I'm wondering if the
reentrant DLL status call is having new memory allocated for it every
time it is called in the status loop. I just can't figure out how
that has anything to do with the front panel being closed though.
Any suggestions on things to try or look at?Well after tweaking around, running the DLL calls in the UI thread
instead of as re-entrant fixes the massive memory leak. I can't
think of a good reason why that isn't a bug, but whatever.
Perhaps it's not crashing the program now when running in the UI Thread
since each DLL call is actually in it's own re-entrant VI
wrapper. Hmmm... -
I have memory leaks in my Labview application connecting and inserting data into a MSSQL server using Labview Database Toolkit.
Versions: Labview 7.1, Toolkit 1.0.1.
I have searched the forums and searhed everywhere else...I see there are some issues. (For example List tables vi). Removing the list tables vi helped a lot. But I can still see that I'm loosing memory here and there, now and then.
My question is: Is there any general guidlines to prevent all memory leaks mentioned?
Or possibly, will it all go away if I upgrade the versions. (As I understand I have too update Labview to be able to update the Toolkit?)
Best Regards
/Jesper
Solved!
Go to Solution.Have you seen this Developer Zone document?
LabVIEW Database Connectivity Toolset 1.0.1 Known Issues
Functions, VIs, and Express VIs - ID 2F7E2352
Memory Leak in the Database Toolset in DB Tools Open Schema VI
The DB Tools Open Schema VI leaks memory which if called continuously eventually causes a LabVIEW crash. This is a sub VI of the DB Tools Insert Data VI.
Workaround—At the highest level, if you are continuously updating values in a table, make sure the table already exists and leave the Create Table input to the DB Tools Insert Data VI set to FALSE.
Other than this, the most important thing is to close all references...
Now is the right time to use %^<%Y-%m-%dT%H:%M:%S%3uZ>T
If you don't hate time zones, you're not a real programmer.
"You are what you don't automate"
Inplaceness is synonymous with insidiousness -
Firefox 6.0 (release) has a memory leak.
Tested with 5 windows and 43 pages loaded and left overnight, it crashed after several hours. Able to fully repro this every time.
I left it for 10 mins after all pages loaded. I opened Task Manager and I can see the Memory (Private Working Set) increasing every few seconds.Well I'm using 7 beta and my memory usage is just short of 600,000k with plugin container using another 220,000k. There is a massive problem with this!
-
Makequeues memory leak when using Lexmark Z53
Behavior with printer switched off while connected to built-in USB port:
Problem 1: makequeues has a memory leak, starting up with between 3 and 5 MB of RAM. This is done by connecting the printer when logged in and watching via Activity Monitor.
Initially makequeues has sent 255 Mach messages. Every ~10.5 seconds, makequeues sends 59 more messages and gets 53 in reply. With each send/receive cycle, its RAM usage grows by 8 KB, a rate of 780 kiB/min.
Problem 2: The process is started each time the same printer is reconnected.
Symptoms: Disconnecting the printer doesn't let the process exit (any instance). If left alone, the memory usage cycle continues.
The memory leak caught my attention after taking up over a half-gigabyte of RAM when I left the Mac running over night.
Resolution:
(1) Disconnect USB cable
(2) Kill each instance of the process
Results:
(1) The process launches after reconnection of the printer with 996 KB of RAM, immediately having sent 60 Mach messages and received 56.
(2) During this run time, the process may use less and less RAM, down to a minimum of 912.
(3) After sending 64 more messages without replies, one every 4 seconds, the process exits after having sent a total of 120 messages.
(4) This behavior (1 through 3) is the same for each process launched as a result of printer reconnection.
This behavior isn't shown during Safe Mode boot - makequeues never starts up as a result of printer connection.
PowerMac G4 QuickSilver 2001 733MhzIf this is meant to be a bug report, please file a bug report in the proper place. This is a user to user discussion forum.
As to the source of running 'makequeues' (/System/Library/SystemConfiguration/PrinterNotifications.bundle/Contents/MacOS /makequeues), I would look at the Lexmark software. I currently have two Epson printers connected via USB with CUPS running. I see no process 'makequeues' appearing.
Matt
Maybe you are looking for
-
TS1702 my ipod wont let me download any thing from the app store
dont let me download anything
-
hi , can any one tell me the standard program name for generating two invoices at a single payment. thanks karthik
-
3rd Gen. Ipod Touch Access To Music On An External Hard Drive
Wondering if anyone has heard of or experimented with getting your iPod touch to access music files from an external hard drive. I have a 3rd gen. 64gb touch that is full and even though I love the storage capacity of the iPod Classic, I would hate t
-
Guys! I'm new to OS X and not used to it so I tried installing Windows 7 having the thought that it's as easy as on ordinary laptops. Installation was succesfull, Installed it by first going to a "boot utility like" screen while it's still on OS X, D
-
XML payload search in Xi messages
Hi All, I need to get the XML pay load for a message which contains a specific value for a specific field. Also I need to get the XML message ID of this message. Is there any option available in Xi for this purpose? Thanks in advance..