Do you know how to use Perfmon?

If not go listen to this podcast – If you think you know perfmon well, go listen to it anyway.

There’s also a video and an article linked in the show’s notes which are referred to several times in the podcast.

Top things I learned from that:

  • There are 25 counters that all admins should be monitoring, regardless of what the server does
  • Some counters are no longer useful with changes to the way disks are attached
  • It is possible, and relatively easy, to have a blackbox perfmon trace permanently running and automatically starting on server start.
  • It’s normal on Server 2008 to see some CPUs high and others not, because the cost of balancing the CPUs grows with the number of cores.

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