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Topic Title: Memory usage in task manager does'nt add up
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Created On: 11/08/2006 08:29 PM
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 11/08/2006 08:29 PM
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mikes451
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When I go into windows task manager and click processes I have 32 processes running. It says my commit charge is 231M / 2424M . So I guess im using 231M of my 1 Gig of RAM. But if I add my mem usage for my 32 processes it only adds up to about 80Meg. So what else is using my memory is there a way to find out? Something besides my processes is using 150 Meg. Thanks

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 11/08/2006 09:11 PM
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thespin
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I have about the same difference. Maybe Windows allocates some kind of cache based on available memory ... Ah don't rightly know ...

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 11/08/2006 10:50 PM
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axy1985
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if i'm right, commit charge shows the amount of data stored into memory AND paging file. so the missing amount would be on the paging file.

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 11/09/2006 12:03 AM
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Mime
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Unfortunately, "commit charge" is even less useful than that. It's something silly like the amount of space you'd need if the memory used by all your apps were dumped to disk all at once. Apparently there was a lot of "under the hood" kind of stuff changed in going from 2000 to XP and for some reason task manager wasn't told about any of it leading to weird stuff like this.

There's a program by Sysinternals called "process explorer", which might do a better job at it.

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 11/09/2006 04:05 AM
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np6s4x
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there was another thread like this a few months back, i'll quite my post from it:

quote:

Originally posted by: np6s4x
try this:







one if your processes may only be using a small amount of ram but alot of vm (a bit back i had one that was using like 1mb of ram but 300mb+ of vm some how)



do that, and you should be able to see where the rest of your memory usage has gone to

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 11/09/2006 04:28 AM
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EdG
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quote:

Originally posted by: mikes451
When I go into windows task manager and click processes I have 32 processes running. It says my commit charge is 231M / 2424M . So I guess im using 231M of my 1 Gig of RAM. But if I add my mem usage for my 32 processes it only adds up to about 80Meg. So what else is using my memory is there a way to find out? Something besides my processes is using 150 Meg. Thanks



Commit charge is memory allocated to programs AND the operating system.

PF Usage
The amount of paging file being used by the system. If your computer is running near the maximum, you can increase the page file size.

Commit Charge (K)
Memory allocated to programs and the operating system. Because of memory copied to the paging file, called virtual memory, the value listed under Peak may exceed the maximum physical memory. The value for Total is the same as that depicted in the Page File Usage History graph.

Physical Memory (K)
The total physical memory, also called RAM, installed on your computer. Available represents the amount of free memory that is available for use. The System Cache shows the current physical memory used to map pages of open files.

Kernel Memory (K)
Memory used by the operating system kernel and device drivers. Paged is memory that can be copied to the paging file, thereby freeing the physical memory. The physical memory can then be used by the operating system. Nonpaged is memory that remains resident in physical memory and will not be copied out to the paging file.
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