The following article outlines recommendations around configuring Internet Information Services("IIS") application pools in relationship to SharePoint.
Central Admin / Shared Services Provider (SSP)
Recycling Application Pool Settings
Settings
Value
Recycle worker process (in minutes):
Unchecked
Recycle worker process (number of requests):
Unchecked
Recycle worker process at the following times:
2:00 am - 4:00 am
Maximum virtual memory (in megabytes):
Unchecked. If you want to limit, set to 500mb.
Maximum used memory (in megabytes):
Unchecked. If you want to limit, set to 500mb.
Performance Application Pool Settings
Settings
Value
Shutdown worker processes after being idle for (time in minutes):
10
Limit the kernel request queue (number of requests):
Unchecked
Enable CPU Monitoring:
Unchecked
Web Garden:
1
Health Application Pool Settings
Settings
Value
Enable pinging:
Unchecked
Enable rapid-fail protection:
Unchecked
Worker process must startup within (time in seconds):
300
Worker process must shutdown within (time in seconds):
300
Identity Application Pool Settings
Leave this tab alone. Generally this will be configured via STSADM or Central Administration.
SharePoint Application Pool (Your Content)
Recycling Application Pool Settings
Settings
Value
Recycle worker process (in minutes):
Unchecked
Recycle worker process (number of requests):
Unchecked
Recycle worker process at the following times:
2:00 am - 4:00 am
Maximum virtual memory (in megabytes):
Unchecked. If you want to limit, set to 500mb.
Maximum used memory (in megabytes):
Unchecked. If you want to limit, set to 500mb.
Performance Application Pool Settings
Settings
Value
Shutdown worker processes after being idle for (time in minutes):
Unchecked
Limit the kernel request queue (number of requests):
Unchecked
Enable CPU Monitoring:
Unchecked
Web Garden:
1
Health Application Pool Settings
Settings
Value
Enable pinging:
Unchecked
Enable rapid-fail protection:
Unchecked
Worker process must startup within (time in seconds):
300-900
Worker process must shutdown within (time in seconds):
300-900
Identity Application Pool Settings
Leave this tab alone. Generally this will be configured via STSADM or Central Administration.