Category Archives: Performance

Sorting Out the Error “Failed to perform data correlation”

While working with PerfMon data recently I ran into an interesting error when I tried to view it overlayed against a Trace file.  If you’re not familiar with that process, I recommend Brad McGehee’s article Correlating SQL Server Profiler with Performance Monitor.  I had opened a Trace file and selected a PerfMon file to import. …

Introducing the 2012 Performance Virtual Chapter Team

In late November I wrote a post  asking for volunteers for the Performance Virtual Chapter.  There was a great response, and many thanks to those who replied!  Without further ado, let me introduce the Performance VC team for 2012:  Speaker Wrangler: Carlos Bossy ( b | t ) I briefly met Carlos at the SQLSaturday…

SQLskills Training, Day 4: Hitting the Wall

I originally wrote this post last Thursday night, August 11th, at the end of day four of SQLskills training.  However, I was exhausted and went to bed after writing, without publishing.  I am now finally catching up… Ok, I’m tired.  I knew it would happen this week, where I kind of hit a wall.  I…

SQLskills Training, Day 3: Hello Extended Events!

It’s the end of day 3, and I admit, I didn’t even get this post started this morning…but that certainly isn’t because I wasn’t looking forward to today.  Most of today was presented by Jonathan ( t ), and we started with Extended Events.  I am glad we did this first! I took a lot…