If there are 5000 ContentControl in WPF get recreated each time when I click a button, the application turns into zombie process.
ContentControl are created by the DataTemplate. The memory usage keeps going up.
check this
http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/e5350510-8a48-4c8f-9266-11ebd45e7497
There might be an memory leak there
Related
Can you please point out if there's a possible memory leak in this AS3 code? A user of this program is saying that there seems to be a memory leak.
function startCountdownToTargetDateTime is called after the program started and loaded user prefs XML file. The program is swf and is loaded into PowerPoint. The user said he ran it for the whole night and it reached 1.8 GB of RAM and crashed PowerPoint.
Using Version 48.0.2564.109 m.
We have a javascript web app (built with ExtJS). In Chrome, when we leave our app sitting there for a while, the GC starts going nuts. In Task Manager, you can see the CPU constantly spinning around 25%.
I took timeline snapshots and CPU profiles, and you can see the GC, about 10 times a seconds, try to collect memory, but collects 0B.
Our app is a large enterprise application and does use quite a bit of memory and updates the screen periodically.
But, there is absolutely no javascript code running during this time. So I can't see that it is something our app is actively doing
Does anyone know what could be triggering this?
It is killing performance of our app.
Also, it only happens when our tab is active. If you switch to a different tab, the CPU dies down and the GC stops.
Is there other data I need to collect to help determine this?
What is your app current JS heap size? You can check it by collecting timeline and enabling memory check box.
It looks like your app is close to the V8 memory limit, so V8 is trying to free some memory. If it is expected for the app to use that much memory, you can increase the limit on your host with something like: --js-flags="--max-old-space-size=2048"
Otherwise it might be just a memory leak in your code. Use heap profiler to hunt it down.
My application connects to a SignalR-hub, and it receives about 15 json-files per minute. For every json-file with a geolocation, a marker gets placed on a sphere in the 3D WebGL-scene, and gets stored in an object {}. When the objectlist reaches 100 items, the application deletes the first item in the objectlist, and deletes the corresponding marker from the scene.
But still, there is a huge memory leak, and when I hit about 200 events, the application crash.
Are the json-files being stored somewhere, and are causing the memory leak?
Though this is not the solution, but I will suggest you to use Ants Profiler to see if there is any memory leak issues in your application.
I will suggest you to derefernce all the listitem in the generic list after it is no use. This is the major cause of memory leaking.
Beware of concatenating strings, use stringbuilder as much as possible.
I am working on the same issue. I had no memory leaks before implementing signalr and now have a fairly significant one. I can disable the signalr in my app and the leak goes away. I'm on version 2.2.0 of signalr (the most current version from Nuget. The only thing that could be hanging up in memory from my code point of view is the event handler. At least that's the only thing I'm creating on the client side.
I've made a game using libgdx. When I launch it, it takes ~30 Mo of RAM. But the memory taken in RAM keep expanding with time, whereas all of the textures are loaded.
Is there a way to know the ressources used by libgdx?
Yes there is. Start the jvisualvm.exe from your java sdk and connect to your running application. (Program/java/jdk_x_x/bin) It does show you the real RAM usage and the created classes and so on (See the Monitor tab).
Moreover you can profile with it to check if there are performance issues. It also can track the RAM usage. Check out the sampler tab for profiling. Simply start the sampler play a bit and shut down the game. After that it asks if you like to have a snapshot of the current status. Or just stop sampling and check the data. Take it and check than which of your stuff does take the most RAM and so on.
Else go for logging your Assetloading and check if you meight make misstakes.
I'm building an Air application, which, due to the workflow of the animators, needs to load a lot of external swf files.
I load them all via FileStream / Loader Objects at the boot process and then store them in an object for further use.
The instant they get loaded, I use a gotoAndStop(1) command to make them stop looping (the original files have no scripts whatsoever).
After the load process I can see the system memory go slowly but consistently up.
When I manually invoke Garbage Collection with the System.gc() command,
the memory gets cleared again.
If I let the application run for hours it seems the Garbage Collector does not run.
Any ideas what the problem might be? Or should I just forget about it and just occasionally run System.gc() manually?
Thanks a lot!
The Garbage Collector will only run when it needs to, so it is entierly possible that it would go a very long time before running (especially if you have a lot of RAM available).
The important thing is the memory is cleared when it is run. This tells me that you don't have a leak, as it can be cleared up.
Also, how are you measuring the system memory? If you are doing it through Task Manager those numbers aren't really to be relied upon.
I recommend Process Explorer . Monitor the 'Private Bytes' column instead.