hard.GCAllocatedMemory

alfcen

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• Jul 25, 2007

• #1

I'm afraid I fail to understand hardware.GCAllocatedMemory (suppose the unit is Bytes).
All I'm trying to figure out is how much memory hardware.GCCollect releases.
This does not make sense:

m = hard.GCAllocatedMemory
hard.GCCollect
msgbox("All unused resources released" & " (" & m & " Bytes)."," Garbage Collection",cMsgBoxNone,cMsgBoxAsterisk)

Any ideas appreciated

 

Erel

B4X founder

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• Jul 25, 2007

• #2

What are the results?

 

alfcen

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• Jul 25, 2007

• #3

first collection: 1483820
next time: 1479508
and then: 1479252
it various, but is always in the order of 1.4 to 1.9MB

 

Erel

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• Jul 25, 2007

• #4

You have 1.4 mb of used memory.
The GC can only free unused memory.
When the memory reaches 1.9 mb (on your device) the GC automatically frees unused memory.

 

alfcen

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• Jul 25, 2007

• #5

That makes sense, thanks Erel.
Is there any means of computing the released amount of Bytes?

 

Erel

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• Jul 25, 2007

• #6

No.
In most cases it is better to leave the GC (garbage collector) and let it release memory automatically.

 

alfcen

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• Jul 25, 2007

• #7

Fair enough.
Thanks a lot for your fast attention (as you always do).

 

alfcen

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• Jul 25, 2007

• #8

Sorry to bother again, Erel
>...and let it release memory automatically.
Does this mean that garbadge collection is automatically performed after a first use of hardware.GCCollect, say in App_Start, whenever B4PPC deems it necessary?

I have a hardware.GCCollect in App_Start and another before AppClose, while
the user can anytime clear using a menu.

 

agraham

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• Jul 25, 2007

• #9

Why are you so worried about Garbage Collection? One of the points about the .NET Framework is that memory is managed for you, and B4PPC is a .NET app. The GC collects unused objects in memory automatically and frees the memory. Except in certain instaces when you have acquired resources OUTSIDE the .NET environment (which is unlikely in B4PPC) you can just let the GC do its' thing.