Here's an old document on analyzing memory problems. Here's summary - This document is intended to help you diagnose common CLR performance issues. Over the years we have seen a wide variety of CLR performance issues from our customers. This document...

While doing memory analysis on one of my scenarios, I noticed that System.Collections.BitArray.BitArrayEnumeratorSimple::get_Current Object () is doing lot of allocations of System.Boolean object. I wrote a simple program to reproduce the behavior...

Kim Hamilto on BCL team has written a great post on performance differences in Named Value Collections and Hashtable. Lookups scale pretty well except that Named Value Collections is 2.6x worse. Addition also scales very well but this time Named Value...

Ryan Byington has written an entry on changes needed for reading performance counters data when logged as non-admin on the box. Basically the change required needs adding yourself to Performance Monitor Users group. For accessing performance counter on...

Maoni has written a good insight on process to identify performance issues. I’ve seen enough people who looked really hard at some performance counters (often not correct ones) or some other data and asked tons of questions such as “is this allocation...