For IIS 7,
Help for Recycling Conditions for Application Pool says that Private Memory Usage is ...privately allocated system physical memory ...
(The property is named Maximum Used Memory in IIS 6.)
And, Event Log entry when application pool recycles; "A worker process with process id of '4824' serving application pool '(thepool)' has requested a recycle because it reached its private bytes memory limit."
Thus, if its private bytes then it must be the committed memory which physical memory + page file. But, help says its physical memory(in that case property must be named private working set.)
ASP.NET Performance Monitoring, and When to Alert Administrators
Private Bytes. The current size, in bytes, of the committed memory owned by this process. http://msdn.microsoft.com/en-us/library/ms972959.aspx#monitor_perf_topic12
i don't find any correction to this documentation, or am i missing something?