Application pool memory gets out of control after updating dlls

Question

We are experiencing Memory issues every time we update the dll's using SVN. The IIS process(w3wp.exe) takes up more than 1GB of memory which is usually 300 - 400 Mb under normal conditions. So every time we update dll's we had to recycle the application pool. Is it because the old dlls are still cached even after updating them? Do we need to follow any specific procedure for updating the dll's?

Can someone please advise me on this?

Answer 1

I fixed this problem by setting Private Memory Limit in IIS for each application pool. May be the process keeps the old dlls in memory to cater for old requests.