Memory leak in 10g XE Production for Win XP?

I'm concerned about a potential issue re: memory usage. Can anyone explain why after running StartDB.bat, the Mem Usage (as monitored via Task Manager) continues to grow, apparently without bound? This is with zero activity on the database -- not even opening of the Home Page. Initial usage immediately after startup was around 51MB; after 25 inutes it had climbed to 80MB.
Any ideas?

Memory useage will vary based on several factors. However, you must consider that all search and update operations are done in the memory area called the SGA. The SGA is designed to be shared by all concurrent users and is a function of the amount of concurrent data as well as the number of concurrent users.
You can throttle or predefine the total SGA size. Limiting it too much will have a negative impact on the overall performance, as will allowing it to grow to the point of causing swapping. A 50M-150M SGA is not unrealistic for a single user system. Beyond single user environment, it is not unrealistic to set aside 20-50M per additional user, although I've seen extremes as low as 1/2M and as high as several hundred meg, based on the application.
In addition, there is a per-user area called the PGA. This is used for support operations such as sorting.

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Dear Sir,
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Hi,
I've got an Oracle database upgraded from
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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
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Thank for your reply.
You are right. I was referring to stateless session
beans.
What I was thinking was the following:
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s should be set to null upon ejbPassivate and
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%

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Hi all,
I'm trying to use the XML Publisher API (5.6.2 and 5.6.3) to generate PDF documents from XSL templates and XML data in a J2EE environment (Jboss 4.0.5) with Struts but a memory leak occurs.
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Object Histogram:
Size    Count     Class description
131376968 2353450 java.lang.Object[]
60389464 937300 char[]
48260304 335141 oracle.xml.parser.v2.XSLResultElement
35690000 2230625 oracle.xml.util.FastVector
24127104 1005296 java.lang.String
16539120 413478 oracle.xml.parser.v2.XSLNode$AttrValueTmpl
14757064 128058 int[]
13348768 417149 java.lang.ref.Finalizer
12701776 102220 * ConstMethodKlass
12544808 23433   byte[]
12204080 108965 oracle.xml.parser.v2.XSLText
8344600 86584   java.util.Hashtable$Entry[]
7363768 102220 * MethodKlass
5592784 138700 * SymbolKlass
5362256 335141 oracle.xml.parser.v2.XSLAttributeSet[]
5267336 8135    * ConstantPoolKlass
5234016 163563 java.util.TreeMap$Entry
5121744 213406 java.util.Hashtable$Entry
4900480 61256   oracle.xml.parser.v2.XPathStep
4087120 51089   java.lang.reflect.Method
3823216 40276   java.util.HashMap$Entry[]
3524696 8135    * InstanceKlassKlass
3378000 84450   java.util.Hashtable
3064872 127703 java.util.HashMap$Entry
2971904 6880    * ConstantPoolCacheKlass
2968560 26505   oracle.xml.parser.v2.XSLValueOf
2770656 24738   oracle.xml.parser.v2.XSLVariable
2167520 27094   oracle.xml.parser.v2.XPathFunctionCall
1880088 33573   oracle.xml.parser.v2.PathExpr
1726360 61482   java.lang.String[]
1573720 39343   java.util.HashMap
1476576 30762   oracle.xml.parser.v2.XSLExprValue
1460840 36521   java.util.TreeMap
1319360 23560   oracle.xml.parser.v2.XPathConstantExpr
1054976 16484   org.jboss.mx.server.InvocationContext
1001264 3546    * MethodDataKlass
887424 11049   short[]
835680 8705    java.lang.Class
830208 25944   oracle.xml.util.NSNameImpl
705816 29409   java.util.ArrayList
684152 4501    org.jboss.web.tomcat.tc5.session.SessionBasedClusteredSession
670288 14071   java.lang.Object[]
640832 10013   oracle.xml.parser.v2.XPathVarReference
561056 35066   javax.management.modelmbean.DescriptorSupport
556272 23178   EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry
552984 30451   java.lang.Class[]
494760 2945    oracle.xml.parser.v2.XSLTemplate
480792 20033   antlr.ANTLRHashString
442576 27661   java.lang.Integer
432096 4501    org.jboss.web.tomcat.statistics.ReplicationStatistics$TimeStatistic
429040 10726   org.hibernate.hql.ast.tree.Node
369880 9247    javax.management.modelmbean.ModelMBeanOperationInfo
312384 19524   java.util.TreeMap$3
305368 5453    java.net.URL
287392 8981    org.jboss.mx.interceptor.ReflectedDispatcher
259264 338     EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap$Entry[]
252280 4505    org.jboss.cache.lock.ReadWriteLockWithUpgrade
238600 5965    org.jboss.mx.interceptor.PersistenceInterceptor
238600 5965    org.jboss.mx.interceptor.AttributeDispatcher
236616 9859    org.jboss.mx.server.AbstractMBeanInvoker$OperationKey
219776 3434    java.lang.reflect.Constructor
206880 6465    javax.management.modelmbean.ModelMBeanAttributeInfo
193168 2259    java.lang.reflect.Method[]
173184 5412    java.lang.ref.SoftReference
164920 589     oracle.xml.parser.v2.XSLStylesheet
164464 541     * ObjArrayKlassKlass
152832 6368    org.dom4j.tree.DefaultAttribute
149472 2076    java.lang.reflect.Field
144160 4505    org.jboss.cache.Node
143160 5965    org.jboss.mx.interceptor.ModelMBeanAttributeInterceptor
140600 3515    org.apache.xerces.dom.DeferredTextImpl
140224 2740    javax.management.modelmbean.ModelMBeanAttributeInfo[]
139056 7658    boolean[]
134664 3359    java.lang.String[][]
131936 1178    oracle.xml.parser.v2.XSLCondition
131936 1178    oracle.xml.parser.v2.XSLForEach
129072 2668    javax.management.modelmbean.ModelMBeanOperationInfo[]
128952 5373    EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap$Entry
124776 1733    org.hibernate.hql.ast.tree.IdentNode
115200 1800    javax.management.modelmbean.ModelMBeanInfoSupport
113088 2356    oracle.xml.parser.v2.AdditiveExpr
109416 4559    java.beans.PropertyChangeSupport
108960 1135    java.io.ObjectStreamClass
108120 4505    org.jboss.cache.lock.IdentityLock
105864 345     long[]
98752   3086    java.io.ObjectStreamClass$WeakClassKey
97968   4082    java.util.Vector
96672   2014    java.util.Properties
94240   589     oracle.xml.parser.v2.XSLOutput
90072   3753    javax.management.ObjectName$Property
87432   3643    javax.management.MBeanParameterInfo
82368   858     org.hibernate.hql.ast.tree.DotNode
81248   5078    java.lang.Long
78656   1229    org.hibernate.mapping.Column
77664   4854    java.util.Collections$SynchronizedSet
77448   3227    java.util.LinkedList$Entry
73824   769     org.jboss.mx.modelmbean.XMBean
73536   4596    java.util.Hashtable$KeySet
72144   4509    EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArraySet
72144   4509    EDU.oswego.cs.dl.util.concurrent.CopyOnWriteArrayList
72144   4509    org.jboss.cache.Fqn
72080   4505    org.jboss.cache.lock.ReadWriteLockWithUpgrade$WriterLock
72080   4505    org.jboss.cache.lock.LockStrategyRepeatableRead
72080   4505    org.jboss.cache.lock.ReadWriteLockWithUpgrade$ReaderLock
72080   4505    org.jboss.cache.lock.LockMap
72016   4501    org.apache.catalina.session.StandardSessionFacade
71776   4486    java.io.FileDescriptor
70680   589     oracle.xml.parser.v2.XSLCallTemplate
70680   589     oracle.xml.parser.v2.XSLApplyTemplates
70224   154     org.hibernate.persister.entity.SingleTableEntityPersister
68296   2774    javax.management.ObjectName$Property[]
68160   1065    org.apache.xerces.dom.DeferredElementNSImpl
67760   770     org.hibernate.loader.entity.EntityLoader
66992   19      EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap$Entry[]
65968   1178    oracle.xml.parser.v2.XPathFilterExpr
65968   589     oracle.xml.parser.v2.XMLUTF8Reader
64432   4027    java.util.HashSet
63648   1326    oracle.xml.parser.v2.XMLNode[]
63440   1586    org.hibernate.loader.DefaultEntityAliases
61256   589     oracle.xml.parser.v2.XSLNode
61256   589     oracle.xml.parser.v2.XMLReader
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57360   478     org.hibernate.hql.ast.tree.FromElement
56976   1187    org.hibernate.mapping.Property
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56544   1178    oracle.xml.parser.v2.MultiplicativeExpr
56544   1178    oracle.xml.parser.v2.EqualExpr
54384   618     oracle.xml.parser.v2.XMLError
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App Memory Leak When Open iPhoto

Hi everyone,
Does anyone have experienced app memory leak when open iPhoto? My free memory immediate dropped from 5000 mb to 15mb when I open iPhoto and the app never open. If I force to quit iPhoto, all return to normal and everything work fine. I only have iPhoto app running, not sure what caused the memory leak???
Looking for help.
Thanks
JHML

Actually the new library was a test to see if the problem occurred only with your current library or with all libraries. The fact that switching libraries cleared up the problem is just serendipitous.

Finding Memory leaks in C using Visual Studio 2013

I am using Visual Studio 2013, and taking a course in C programming and we started
talking about memory bugs detaction, in particular memory leaks, and how to detect them using Valgrind on Linux.
I want to know if there is a way to detect such memory leaks using VS 2013. I tried searching online but it just leads to lots of articles and blogs and msdn posts and blogs with lots of words like dump files, and analyzing them, etc which is weird
because:
1) It sounds so complex, convoluted and unintuitive it is actually hard to comprehend it.
2) The main reason this is weird is due to the fact that VS is the most advanced IDE around and Microsoft spends so much money on in, yet from what I have read it seems that there is no simple way to use VS to detect memory leaks
- certainly no way that's as simple as Valgrind where I only have to compile the program and run the command valgrind -leaks-check=yes ProgramName
and it simply prints to me all location it thinks there is a memory leak and describes the error (like not freeing memory after allocating it with malloc hence having "dead" memory after the program finishes, or accessing memory that's out of
the array bounds)
So my question is how to use VS 2013 in order to achieve the same results and to find out First in high level if there are memory leaks in the program, and Second - to detect in a simple manner where those leaks are- preferably without involving dump files
(not that I know how to use them anyway in VS).

Hi MicrosoftLaw,
Thanks for your post.
Based on your issue, if you want to check if there are memory leaks in the C program from this VS2013. I suggest you could try to find Memory Leaks Using the CRT Library, for more information:
https://msdn.microsoft.com/en-us/library/x98tx3cf.aspx?f=255&MSPPError=-2147217396
In addition, I find a similar thread about this issue, please you refer the Dusty's suggestion to check this issue.
http://stackoverflow.com/questions/45627/how-do-you-detect-avoid-memory-leaks-in-your-unmanaged-code
I did some research about this issue, I found that the Visual Leak Detector extension tool is a free, robust, open-source memory leak detection system for Visual C++. So if possible, I suggest you could try to use the Visual Leak Detector extension
tool to find the memory leak for Visual C/ C++ program.
https://visualstudiogallery.msdn.microsoft.com/7c40a5d8-dd35-4019-a2af-cb1403f5939c
However, if you have any issue about how to use this Visual Leak Detector extension tool to find the memory leak for C program. I suggest you could directly to write a review to this REVIEW tab in Visual Leak Detector site.
Best Regards,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Memory leak when passing variables to functions in StarOffice Basic

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Sub Main
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Message was edited by:
capnbob

That's a bit different for event handlers like the onRelease
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Can I locate "memory leaks" to keep apps from crashing?

Hello clever people,
Since the iPhone 4s is still on the market, I assume that my 2 year old 4s should be able to work fine. However, I am constantly plagued by apps crashing and, most frustratingly, apps often fail to remain running in the background, even with one or no other apps running.
I had a similar issue with my iPad2, just before it ran out of applecare, and the chap had me run through with sending anaylitcs to him, and his conclusion was that a few apps were causing 'memory leaks' - had me reset the iPad and reinstall everything. So I also did this on the iPhone, which did help, but it has not solved the issue. I have also removed most apps from the device, in a bid to locate the offending app.
Searching on Google for "memory leak" only brings up info for developers, and nothing for someone who is actually using their phone and having issues. My usual scenario is going for a bike ride and running Strava, which then cuts out when I stop to take a picture - with no other apps running.
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There are differenty types of, "resets" ..
Have you tried the folloiwng ??
Reset the device:
Press and hold the Sleep/Wake button and the Home button together for at least ten seconds, until the Apple logo appears.
If that doesn't help, tap Settings > General > Reset > Reset All Settings
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How to configure license file for Memory Leak tool and WL Server 9.2?

(I posted to general JRockit forum before realizing existence of this forum which is probably more applicable.)
Here's our problem:
Running latest version of WL 9.2 MP3 and JRockit Mission Control 3.0.1
Able to run Mission Control, and connect to the WL Server and to run View Console with no problems.
I can't get Memory Leak tool to run because it complains about needing a license file.
First I tried with off the shelf WL 9.2 MP3.
Get error:
A license for Memory Leak Detector could not be found on the JRockit at (1.5) weblogic.Server (192).
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So I downloaded license file from JRockit download site - wls92.zip. It contains several files, but no clear instructions on what to do with these files. I copied one of these files "LIC-WLSP92.txt" to my JRockit home as C:\bea\JROCKI~1\jre\license.bea
Tried again. Restarted WL server. Restarted JRockit Mission Control.
Get error: A license for Memory Leak Detector could not be found on the JRockit at (1.5) weblogic.Server (3052).
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Installed Mission Control 3.0.3.
Got following message when I attempted to run Memory Leak:
A license for Memory Leak Detector could not be found on the JRockit at (1.5) weblogic.Server (192).
Error: Can not find component Memory Leak Detector for JRockit * in the license file.
Please check http://www.jrockit.com/license for license updates.
I believe that we're using the latest downloads of WebLogic 9.2.x and JRockit.
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Contents of C:\bea\jrockit_150_12\jre\license.bea:
<?xml version="1.0" encoding="ISO-8859-1"?>
<bea-licenses>
<license-group format="1.0" product="JRockit" release="*">
</license-group>
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Ever since upgrading to the latest version of Skype on my Win 7 x64 box, I've had nothing but issues with Skype having a huge memory leak. It'll start out running fine when I boot up, hovering around 141K of memory usage (even though I think that's still higher than it should be), but after leaving it open for a while, it will just continue to creep up. Yesterday I had to kill the Skype.exe*32 process from Task Manager because it was up to 1.2 GB of memory usage.
Previously it had not gotten that high, but I have seen it as high as almost half a gig. I've tried all the usual stuff, removing and reinstalling, making sure I'm running the latest version, etc. The memory leak is still there. Has anyone experienced this issue with 7.4.0.102? If so, has anyone found any resolution?

http://community.skype.com/t5/Windows-desktop-client/7-3-0-101-CPU-overload/td-p/3950990

Avoid Bug 7146375 ORA-4030 MEMORY LEAK IN (Xml generation) in oracle 10g

Hi All,
I have to generate an xml from database which contains around 4 lac records. I had written a query using XmlSerialize and XmlElement.
It does run properly for records less than 2 lacs.
But when the record count goes above 2 lacs..it is throwing the following error -
{ ORA-04030: out of process memory when trying to allocate 1032 bytes (qmxlu subheap,qmemNextBuf:alloc)
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For the above error - I have tried increasing pga from 480M to 800M, but still we are getting the same error.
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Bug 7146375 is fixed in 11.2
So i tried out the query in another a db which has 11g installed and my query runs perfectly fine for records of upto 4 lacs.
But since we have oracle 10g on our clients machine, are there other ways to achieve this XML generation other than this?
Thanks.

913389 wrote:
After researching i found out -
Cause
This is caused by the following bug:
Bug 7146375 ORA-4030 AND MEMORY LEAK IN SESSION HEAP: "KOH DUR HEAP D"
Solution
Bug 7146375 is fixed in 11.2
So i tried out the query in another a db which has 11g installed and my query runs perfectly fine for records of upto 4 lacs.
But since we have oracle 10g on our clients machine, are there other ways to achieve this XML generation other than this?I doubt it. If Oracle have investigated and created a bug report that says the solution is to upgrade to 11.2, then that's the answer, otherwise they would indicate that a particular 10g patch set can also be used.

Memory leak on latest Adobe Reader 8.1.2 Win XP SP2

Dear Adobe Developers,
I have encountered a strange problem. I open a PDF file of size about 16.5 MB, I search trough it and then the memory allocated starts steadily growing until it fills out the entire RAM and the virtual memory as well. Strange thing is this only happens after I perform a search through the file; if I don't do it, all stays within normal. I was wondering if it is not a memory leak of some kind? I use Adobe Reader 8.1.2 on Win XP with Service Pack 2 on Celeron 1.7 GHZ, 256 DDR RAM, 320 GB HDD ect .. Normally the RAM occupied by the OS itself is only about 100 MB so there are ~150MB left free. But they seem not to be enough even when we add to them the virtual memory.
Greetings,
Georgi Popov, BG

>I have more than 700 MB virtual memory.
That's probably not enough for normal operations. A couple of
gigabytes is safer.
There may be a problem, though. This doesn't sound like normal
behaviour. Acrobat may be cacheing text - does the size stop
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Aandi Inston

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