According to the documentation, instance members of the TraceSwitch class
are not guaranteed to be thread safe.

Consider the following code :
==
in class "A":
       public static TraceSwitch BlahSwitch = new TraceSwitch("blah",
"blah");

in class "B" :

       private void DoSomething()
       {
           if (A.BlahSwitch.TraceError)
               System.Diagnostics.Trace.WriteLine("Error occured");
==

In doing some testing, I saw cases where BlahSwitch.TraceError sometimes had
the incorrect value. (To reproduce this, I created mulitple threads in a
winform app, and accessed BlahSwitch.TraceError from different threads at
the same time).

So, I'm wondering if using static instances of TraceSwitch is a good idea in
ASP.NET ?
Otherwise, creating a local instance of the TraceSwitch everytime it is
needed seems very inefficient.