1. OS level

    a. CPU  (Multicore, exceeds 40% needs pay attention to)

    b. Memory  (Memory increase, page commit)

    c. Disk (disk time(read, write, transfer), IO ability, disk space)

    d. Network (loading)

tools:

a. Windows Task Manager(taskmgr)

b. Windows Performance Monitor(perfmon)

c. PAL(Performance Analysis of Logs)

 

2. Application level

    a. Database(Number of Deadlocks/sec, Lock requests/sec, Active Transactions, Transactions/sec, DTC Calls, OLEDB calls, Extended Procedures)

    b. IIS

    c. .Net Framework