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High pages/sec

Running Windows 2008 Server SP2 x64 Enterprise.

Users on this server, hosting a custom app, are complaining that it's slow at certain points during the day. I can see high pages/sec during this time.

Indicates a memory issue, but the server has 32GB RAM installed.

Anything else to help isolate the cause? CPU and available memory looks ok, so not sure why it's paging so much.
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bruce_77
Asked:
bruce_77
2 Solutions
 
giltjrCommented:
It does not matter how much memory you have installed, its how much memory is needed.  Having 32GB installed but needing 64GB will cause problems.

It task manager much much memory is in use while having this problem?
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Ted BouskillSenior Software DeveloperCommented:
Even on an x64 system the ASP.NET runtime has limits:
http://blogs.msdn.com/b/tom/archive/2008/04/10/chat-question-memory-limits-for-32-bit-and-64-bit-processes.aspx

If the web application is caching a lot of content then it can sometimes trigger serialization to disk that will cause high levels of page activity.
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