If you have ever used Windows Performance Monitor and had trouble changing the time period for really big perf log files, there is a helpful tool for you.  I have often driven myself crazy trying to squeeze that time window down to the hour I want and gone crazy.  The link below points to a few helpful tools for performance monitoring.  Relog.exe is the tool that will help you create a new perf log file with a subset time period from a larger file.

  • Logman.exe:  Allows you to remotely manage perf logging on servers and manage centrally.
  • Relog.exe.  Allows you to create new perf log files with changed counters, time period, log file type, etc.
  • Typeperf.exe.  Allows you to get perf data from a server in a command window.

http://support.microsoft.com/default.aspx?scid=kb;en-us;303133