Resource utilization
\.Processor\%Processor Time
\.NET CLR Memory(*)\Allocated Bytes/sec
\.NET CLR Memory(*)\% Time in GC
\.NET CLR Exceptions(*)\# of Exceps Thrown / sec
\.NET CLR Loading(*)\Current Assemblies
Throughput
\.NET CLR LocksAndThreads(*)\Contention Rate / sec
\.NET CLR LocksAndThreads(*)\Current Queue Length
\ASP.NET\Requests Queued
\ASP.NET\Request Wait Time
\ASP.NET\Requests Current
\ASP.NET Applications\Requests In Application Queue
\ASP.NET Applications\Pipeline Instance Count
\ASP.NET Applications\Requests Executing
\ASP.NET Applications\Requests/Sec
\Web Service\Current ISAPI Extension Requests
Response time
\ASP.NET\Request Execution Time
SQL Server
SQL Server: General Statistics\Logins/sec
SQL Server: General Statistics\Logouts/sec
SQL Server: General Statistics\User Connections
Detailed explanation about each counter and its significance can be found here: Chapter 15 — Measuring .NET Application Performance
Read more: Alik Levin's