The Internet Information Services (IIS) Manager displays as shown below.
By default, IIS 7.5 does not set a limit on the amount of memory that IIS is allowed to use. ASP.NET’s cache feature relies on a limitation of memory so the cache can proactively remove unused items from the memory.
For this reason, TMA Resources recommends you configure the memory recycling feature of IIS 7.5.
To configure IIS 7.5’s memory recycling:
1. Open
the Internet Information Services (IIS) Manager (Start > Programs
> Administrative Tools > Internet Information Services).
The Internet Information Services (IIS) Manager displays as shown below.
2. Expand the Application Pools folder.
3. For each Application Pool:
a. Right-click
the application pool and select Properties
as shown below.
b. Check
the Maximum virtual memory (in megabytes) checkbox to enable
memory recycling as shown below.
This
value should not be more than the amount of physical (not virtual) memory
on the server. TMA Resources recommends setting this to approximately
60% of the physical memory (e.g., for a server with 512MB of physical
memory, select 310). TMA Resources also recommends that the maximum not
exceed 800MB when using a 2GB address space. If the memory address space
of the server is 3GB, the maximum memory limit for the worker process
can be set to as high as 1800MB.
c. Click Apply.
d. Click OK.
e. Repeat this for all available application pools.