It looks like there is a possible memory leak with one of our web applications. w3wp.exe is taking about 1.5gb of RAM and our web services are returning an error saying that it is out of memory. Is there a way to determine which application is causing the excessive memory or profile the actively running websites to see what the cause of the memory issue is?
I would post this on Server Fault, but I am more interested in a way of debugging the application to see where the fault is. I can run the websites locally and w3wp.exe does not take excessive amounts of RAM. These are active websites / web services that are in constant use, so I am assuming that the problem will only show up with excessive load.
The Debug Diagnostics Toolkit is designed exactly for this purpose.
There are a fair few articles around on how to use the toolkit: