This took a while to figure out . . . I needed to use the .Net Memory counters to watch the heap sizes and garbage collections. Unfortunately, none of them appeared in Perfmon under Performance Objects.
I looked up the old standby on "How to Manually Rebuild Performance Counter Library Values"
I wasn't quite willing to do all of the registry pecking and ripping needed to do that rebuild but I checked out the keys mentioned and tried running LODCTR \R on the .Net CLR ini file. That reported that they were already installed. :-
So I checked in on the registry entries under Services . . . HKLM\SYSTEM\CurrentControlSet\Services\.NETFramework\Performance
Imagine my surprise when I saw this value:
Disable Performance Counters = 1
Setting that to 0 brought the counters back as expected.
I blame big brother for this one, but it turns out that windows will make this setting if a counter fails some tests at load time.
Disable Performance Counters
Although you can set Perflib not to disable on fail:
Perflib Configuration Flags
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