I wrote C++ for 10 years. I encountered memory problems, but they could be fixed with a reasonable amount of effort. For the last couple of years I've been writing C#. I find I still get lots of memory problems. They're difficult to diagnose and fix due to the non-determinancy, and because the c# philosophy is that you shouldn't have to...
My production system occasionally exhibits a memory leak I have not been able to reproduce in a development environment. I've used a Python memory profiler (specifically, Heapy) with some success in the development environment, but it can't help me with things I can't reproduce, and I'm reluctant to instrument our production system with...
I have a system (Ubuntu) with many processes and one (or more) have a memory leak. Is there a good way to find the process that has the leak? Some of the process are JVMs, some are not. Some are home grown some are open source. ...
My site has quite a deep navigation structure and quite often it looks like the out of the box navigation is leaking memory, especially the SPWeb objects. The log message looks like Potentially excessive number of SPRequest objects (14) currently unreleased on thread 5. Ensure that this object or its parent (such as an SPWeb or SPS...
class base{ int a; int *pint; someclass objsomeclass; someclass* psomeclass; public: base(){ objsomeclass = someclass(); psomeclass = new someclass(); pint = new int(); throw "constructor failed"; a = 43; } } main(){ base temp(); } in the above code constructor...
What is the best way to track down a memory leak that is only found on one customer's test/release box, and no where else? ...
I’m trying to debug a memory leak problem. I’m using mtrace() to get a malloc/free/realloc trace. I’ve ran my prog and have now a huge log file. So far so good. But I have problems interpreting the file. Look at these lines: @ /usr/java/ibm-java2-x86_64-50/jre/bin/libj9prt23.so:[0x2b270a384a34] + 0x1502570 0x68 @ /usr/java/ibm-java2-x86...
CLR profiler does not seem to work with the Silverlight CLR. Does another memory profiler exist? ...
I wrote a small web app using ruby on rails, its main purpose is to upload, store, and display results from xml(files can be up to several MB) files. After running for about 2 months I noticed that the mongrel process was using about 4GB of memory. I did some research on debugging ruby memory leaks and could not find much. So I have tw...
I've got a Win32 C++ app with a suite of unit tests. After the unit tests have finished running, I'd like a human-readable report on any unfreed memory to be automatically generated. Ideally, the report will have a stack with files & line number info for each unfreed allocation. It would be nice to have them generated in a consistent ...
Do you know what may cause memory leaks in JavaScript? I am interested in browsers: IE 7, FireFox 3, Safari 3 ...
Are the string literals we use inside functions automatic variables? Or are they allocated in heap which we have to free manually? I've a situation like the code shown below wherein I'm assigning a string literal to a private field of the class (marked as ONE in the code) and retrieving it much later in my program and using it (marked a...
Given an aggregation of class instances which refer to each other in a complex, circular, fashion: is it possible that the garbage collector may not be able to free these objects? I vaguely recall this being an issue in the JVM in the past, but I thought this was resolved years ago. yet, some investigation in jhat has revealed a circul...
Do you know a good and free Hashtable imlementation for Delphi 5 ? I need to organize a huge amount of data in a hastable and I am bit worried about memory leak issues that I found in most available implementations on the web. Tks ...
I have boiled down an issue I'm seeing in one of my applications to an incredibly simple reproduction sample. I need to know if there's something amiss or something I'm missing. Anyway, below is the code. The behavior is that the code runs and steadily grows in memory until it crashes with an OutOfMemoryException. That takes a while, bu...
I have a problem with a memory leak in a .NET CF application. Using RPM I identified that dynamically creating controls are not garbage collected as expected. Running the same piece of code in .NET Window Forms behave differently and disposes the control as I expected. See the output from RPM via PerfMon for the Process Heap counter...
I've been trying to track this one for literally a month now without any success. I have this piece of code on an car advertising website which basically allows thumbnails to rotate in search results given that a car has multiple pictures. You can see it in action at the following: http://www.abcavendre.com/4506691919/ It is built ...
[TestMethod] public void Memory() { var wr = new WeakReference("aaabbb"); Assert.IsTrue(wr.IsAlive); GC.Collect(); GC.Collect(); GC.Collect(); GC.Collect(); GC.Collect(); Assert.IsFalse(wr.IsAlive); //<-- fails here } It's .NET 3.5 SP1 Can anyone can tell me why this test fails? Edit: Thanks stusmith ...
I'm a c++ programmer and I'm playing around with java after finding JPA which for a few of my current applications is a god send. I haven't touched java since university and I'm having a problem running out of heap space. I'm using the code below as the main part of a not-very-serious test of jdbc/jpa/lucene but I keep on getting random ...
I hope there's a SharePoint expert here on SO who can help with this. Here's the problem. My SharePoint logs contain this line, several times: An SPRequest object was not disposed before the end of this thread. To avoid wasting system resources, dispose of this object or its parent (such as an SPSite or SPWeb) as soon as you are done ...