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POwhere did my memory go? large private bytes count
 

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  1. POwhere did my memory go? large private bytes count
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    <p>I have a WPF app that among other things display a lot of images, large and small. My problem is that the app uses a lot of memory and I cannot figure out where it's coming from.</p> <p>The scenario, when stressing the app some I get this graph in perfmon:</p> <p><a href="http://www.imagechicken.com/uploads/1244548604007097000.jpg" rel="noreferrer">http://www.imagechicken.com/uploads/1244548604007097000.jpg</a></p> <p>The big black line is Process\Private bytes and the other lines are the CLR mem counters (the pink one is Total committed bytes)</p> <p>In numbers in the graph are:<br> Private bytes ~ 350 Mb<br> Committed bytes ~ 100 Mb<br></p> <p>I have been digging around a lot with WinDbg and other tools, and they all report that the managed stack behaves (!eeheap reports total managed stack of around 100 Mb)</p> <p>I've been poking around with apps like LeakDiag,LDGrapher but found nothing.</p> <p>So, finally to my question, <strong>how do I proceed in finding out where my memory is going?</strong></p> <p>Even just starting the app uses 100Mb in committed bytes but 190Mb in private bytes.</p> <p><strong>References:</strong></p> <p>I've read a lot about this, among others on the great sites:<br></p> <p>Tess Ferrandez: <a href="http://blogs.msdn.com/tess/archive/2009/02/27/net-memory-leak-reader-email-are-you-really-leaking-net-memory.aspx" rel="noreferrer">http://blogs.msdn.com/tess/archive/2009/02/27/net-memory-leak-reader-email-are-you-really-leaking-net-memory.aspx</a></p> <p>Rico Mariani: <a href="http://blogs.msdn.com/ricom/archive/2004/12/10/279612.aspx" rel="noreferrer">http://blogs.msdn.com/ricom/archive/2004/12/10/279612.aspx</a></p> <p>MSDN mag: <a href="http://msdn.microsoft.com/en-us/magazine/cc163528.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/magazine/cc163528.aspx</a></p>
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    1. USDrew Noakes
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      1. USMagnus Johansson
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    1. COThanks for the replies so far. So, to clarify, !eeheap, !dumpheap, gcroot etc all report the stuff that make up the 100Mb - what I'm trying to get rid of is the other memory - the additional 250 Mb.
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      1. POwhere did my memory go? large private bytes count
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    2. COUpdate - with VADUMP: Reports "Grand total working set" of 236 Mb, "Other data" as 196 Mb. Meanwhile !eeheap reports "GC heap size" at 107336836. What is this difference?
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    3. CO'Other data' includes the GC heap along with other other data :) I'm not sure what else is in there, but it's safe to assume it's runtime data required by the CLR.
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