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Look who is reserving large amount of virtual memory on 64 bit: It is . Net GC heaps

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On 64 bit window 2003/2008 servers as soon as you give any .Net (.aspx) resource requests you would notice w3wp.exe taking large amount of memory in form of Virtual bytes.

Looking in task manager we would notice W3wp.exe Process/Commit size: 380 MB

Whereas looking into perfmon virtual bytes counter or in IIS 7 => Worker Processes.We would notice approx. 5.5 GB as virtual bytes occupied by w3wp.exe

 

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Comments

  • Anonymous
    October 31, 2013
    Hi, I've seen this on several servers. What does this mean? Is the process realy using 5,5GB of memory? Is this a memory leak in our application? Thanks, Nuno Pereira

  • Anonymous
    December 01, 2013
    Nuno, No that does not mean it is memory leak . Read the linked article for complete details