#High Ram Memory Usage
open turret
Wdym?
simple marten
by comparing snapshots from the start and after yeah?
open turret
No snapshots. You can see a graph of the last hundred frames or so in the profiler.
simple marten
got it
open turret
The snapshots are from the dedicated memory profiler, not the regular profiler.
simple marten
but object pooling shoudnt be an issue when stopping playmode, every object is destroyed
open turret
Or maybe not. I think you had to take snapshots in the regular profiler too to see the details.🤔
open turret
but object pooling shoudnt be an issue when stopping playmode, every object is d...
No. In this case it would remain, as empty heap space is basically what unity reserves from the system. Even if that memory is empty.
It would use it to allocate other stuff.
Basically, these 12 gb represent the peak of your memory consumption in the editor.
simple marten
ok I create massive planets with loads of trees which i activate deactivate
this is on edit mode
open turret
ok I create massive planets with loads of trees which i activate deactivate
Yeah, in this case there's nothing surprising.
simple marten
how do I optimse that process then to avoid that massive memory usage?
object pooling
I guess
open turret
For starters, if you're only worried about the game itself, you should profile the build.
open turret
If you want to troubleshoot the editor, I'm not sure if there's much you can do.
Aside from reducing the peak of memory consumption.
Pooling might help depending on your setup.
open turret
Basically, don't spawn/instantiate a lot of stuff at the same time.
I don't know if you have a memory leak or something, but if you do, that might explain things.
frigid crow
Also if you create any UnityEngine.Objects (Mesh, Texture, SO...) at runtime, those need to be destroyed too or you get a leak
simple marten
Also if you create any UnityEngine.Objects (Mesh, Texture, SO...) at runtime, th...
But unity doesn't destroy them when stopping playmode?
frigid crow
Yeah it does, do the leaks happen between playmode sessions? Sorry didnt read the whole thing, just chimed in
open turret
Even if it does destroy, it would work towards that peak memory consumption, left as the empty heap memory.
simple marten
Yeah it does, do the leaks happen between playmode sessions? Sorry didnt read th...
Yeah , the editor is idle
open turret
Basically, you need to profile your game properly. Before play more, during and after exiting.
simple marten
Even if it does destroy, it would work towards that peak memory consumption, lef...
No way to tell unity please leave that memory alone, you don't need it anymore
open turret
Restart the editor I guess 🤷♂️
I don't know if there's any editor API that could help here. It's not like that memory is occupied. It's just reserved.
Though the untracked memory is a bit worrying as it's taking the biggest chunk of the whole memory.
simple marten
Yeah electricity went off at home , gonna check before and after and I suspect it maybe because those damn 1000 trees spawned, even if they are deactivated
frigid crow
Yeah it does, do the leaks happen between playmode sessions? Sorry didnt read th...
Actually im not even sure if it releases everything when exiting playmode. I always manually delete any leftover UnityEngine.Objects in OnDestroy or something
Like if a script creates a mesh, it is responsible for destroying that mesh too
open turret
Yeah, it's possible that it's not destroyed
simple marten
Though the untracked memory is a bit worrying as it's taking the biggest chunk o...
What could go there?
simple marten
Yeah, it's possible that it's not destroyed
How do I make sure they are destroyed when stopping playmode?
frigid crow
If a script creates something, it should hold a reference to it
And then Destroy that object when it dies itself
Just as an example...cs public class MeshMaker : MonoBehaviour { Mesh mesh; void Start() { mesh = new Mesh(); /* ... */ } void OnDestroy() { if(mesh != null) { Destroy(mesh); } } }
simple marten
Though the untracked memory is a bit worrying as it's taking the biggest chunk o...
What can that be tracking?
frigid crow
Also if you do a lot of recompiling while in playmode, non-serialized values will be lost so that might lead into some leaks
simple marten
Also if you do a lot of recompiling while in playmode, non-serialized values wil...
That's impossible unless I use fast script reloading
simple marten
On playmode you cant recompile
If you make changes on a script it will recompile after you exit playmode, or hit refresh
frigid crow
Hmm? I recompile while in playmode all the time
Is this some setting? What unity version you on?
frigid crow
Nope, I mean simply saving a script while in playmode and it will just recompile it for me
(static and non-serialized values will be reset to default when doing this)
Lol
Feature meaning "recompile during playmode"
So maybe it's turned off for you
simple marten
@main crown
open turret
What can that be tracking?
Not really sure. I've only found some old post saying that they're gonna add more detailed info in the next update.
simple marten
Feature meaning "recompile during playmode"
Ok gonna turn it off
simple marten
asking chatgpt I got this about destroying those trees @frigid crow
In Unity, if you want to destroy objects created during play mode when you stop play mode in the editor, you don't need to handle this manually. Unity will automatically clean up these objects when play mode is stopped. This is a built-in feature to prevent any memory leaks.
So, when you stop play mode, all temporary objects created during play mode, including those created with Instantiate or through script, will be automatically destroyed, and their memory will be released. You do not need to write additional code to handle this cleanup; Unity handles it for you.
Just ensure that the objects you want to be automatically destroyed are indeed created during play mode and not part of your scene hierarchy in the editor. Objects that are part of the scene hierarchy will persist between play mode sessions. Temporary objects created through script during play mode will be automatically cleaned up when you stop play mode, which helps prevent memory leaks.
there is no need to destroy those spawned trees then
Im gonna try to keep running a more light scene and see if the ram keeps increasing
in the same way
simple marten
@open turret this the snapshot at the start of the editor
open turret
Still quite weird that untracked is being almost the biggest category. I'm not really accustomed with the dedicated memory profiler, but there must be a way to see more details. Maybe the "inspect" button.
According to some info online, it seems like untracked includes external plugins. Are you using any kind of plugins or assets that could be allocating a lot of memory?
simple marten
mmm let me check them out
console pro 3 , odin inspector, ...
urp
it's crazy because i can see how hitting play, keeps making the ram creep up progresively
gonna try to do the same In a different scene
press play stop play stop...
ok If I do that in the menu scene the RAM doesnt creep up
Also I'm using fast script reload lately, maybe that is the reason . I uninstalled it, let's see how it works now
open turret
Try looking at All Of Memory tab
Also read this on memory leaks:
https://docs.unity3d.com/Packages/com.unity.memoryprofiler@1.0/manual/find-memory-leaks.html