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Pardon if this is more stackoverflow vs. serverfault. It seems to be on the border.

We have an application that caches a large amount of product data for an e-commerce application using ASP.NET caching. This is a dictionary object with 65K elements, and our calculations put the object's size at ~10GB.

  1. The amount of memory the object consumes seems to be far in excess of our 10GB calculation.

  2. BIGGEST CONCERN: We can't seem to use over 60% of the 32GB in the server.

What we've tried so far:

In machine.config/system.web (sf doesn't allow the tags, pardon the formatting):

processModel autoConfig="true" memoryLimit="80"

In web.config/system.web/caching/cache (sf doesn't allow the tags, pardon the formatting):

 privateBytesLimit = "20000000000" (and 0, the default of course)
 percentagePhysicalMemoryUsedLimit = "90" 

Environment: Windows 2008R2 x64 32GB RAM IIS7

Nothing seems to allow us to exceed the 60% value.

share|improve this question
The screenshot didn't seem to make it. – pplrppl Jun 14 '10 at 19:38
In case anyone else runs upon this, looks like worker processes needs to be restarted after the processModel element is changed. See – James Skemp Jun 6 '11 at 1:33

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