Programmatically monitoring Windows memory

Hi
I'd like to monitor the total amount of memory a Windows-process is using. Something like the Windows Task Manager does.
This is primarially used to get the amount of memory an application built with Labview is using.
I know there are several ways to calculate the memory of certain VIs and iterate through all Vis in memory, but that doesn't the trick.
You'll miss out the memory that is consumed in a DLL. This is run in the same address space as the VI, but is not logged in any of the common LV monitoring tools.
In my case I wan't to restart an application when the LV 8.6 Webserver eats too much memory, which it does if you plublish heavily decorated frontpanels.
So I am sure there is way to get these numbers in a Windows Kernel or User method or property. Is someone better in MS internals than I? Then I'd really appreciate a hint.
Gabi
7.1 -- 2013
CLA
Solved!
Go to Solution.

Thanks guys
I usually stick with Active-X but this time I could not follow the MS-sequence of methods and properties . Maybe it's also because I tried it on a German XP-Professional (SP3).
Ultimatly the scan will have to run as well on a Windows-Server 2008/64 So I decided to go with .net.
I didn't even know there existed an example for that. But since my problem was "monitoring memory" I would not search for System Monitor or Counters.
So thank again.
Gabi
BTW: As compared to what google brings up for a search, NI is pretty poor.
7.1 -- 2013
CLA

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(Latest update) This is the best I can do to alleviate the problem, and does reduce its severity immensely, but I found myself still noticing some slight playback glitches in videos on my second monitor which probably also translate to anything else with movement. I have tested with a panning scene in one of my videos and there is a subtle micro-stutter on my second monitor which I can find no way to fix. This doesn't occur if outputting to a single display, one or the other, nor does it occur when playing the video on my primary monitor in a dual-monitor configuration. Note that when I say "primary monitor", I am not referring to the monitor Windows has marked as primary, but my actual monitor rather than TV. In a dual-monitor configuration, this micro-stutter will only occur when playing video on my right monitor (TV), regardless of settings or which ports the monitors are connected to on the GPU. The micro-stutter occurs with no relation to the activity on the other screen, as it can be completely still. I can confirm the micro-stutter does not occur at all with Desktop Window Manager (Aero) disabled. In short, this is a nightmare.
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I think I've solved the problem.. for me, anyway. I've divided this into short answer and "long answer", which is closer to a stream of consciousness in some ways, as I found out about Force10Level9 as I was writing.
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I've found some registry keys which seem to have fixed the problem for me. I haven't experienced any side effects, but use the tweaks at your own risk!
I don't know exactly what they do. This comes from a lot of.. experimentation. I believe FrameRateMin tells the Desktop Window Manager that it's crucial to try to keep the framerate at or above the value specified (more details below), and Force10Level9 sounds like it forces DWM to use DirectX 9. I'm fairly certain about the former, not as certain about the latter, but together they do wonders.
You can view the fix below. You can then save it as a .reg file and import it into your registry. Restart the Desktop Window Manager service or reboot to see the changes.
Fix: http://pastebin.com/FFDbubw9
Undo: http://pastebin.com/zA8CJY06
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(P.P.S. The screen fade that happens when you log in/out is just as choppy as before (or if it wasn't choppy for you, that shouldn't have changed). Oh well, how often do we see that thing, anyway? :))
By the way, it appears 10Level9 is Windows 7's emulation platform for running DX10 on DX9 hardware. It's reported to be at least a 0.5x performance hit, so it's surprising that it actually makes Aero run better. If this article is anything to go by, Force10Level9 makes Aero run exactly the same as it does with older WDDM 1.0-only drivers like 182.50: http://www.techarp.com/showarticle.aspx?artno=637&pgno=1
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Well... I was able to do one more thing.
There is an undocumented registry key which allows you to fine-tune the Desktop Window Manager's scheduling. Unfortunately, all of its values seem to be defunct in the final version of Windows 7 we all use today... except one: FrameRateMin.
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I presume it does all this to keep things looking "smooth".
The problem is, in most cases, it doesn't help, and actually prolongs the stuttering duration. By "in most cases", I mean in every case it's happened in my personal usage of my Windows 7 computers.
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Attachments:
MemoryViaLogos.png ‏5 KB

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