When enabling performance counters in Windows Azure Diagnostics I have to specify the counters using some magic string literals like \Processor(_Total)\% Processor Time. I can't find a list of possible string literals.
Is there a list anywhere?
Adding my comment as an answer at behest of @sharptooth :)
Once you RDP into your VM, open up command prompt and type "typeperf -q" to list all the available performance counters on your VM. As @Sandrino Di Mattia mentioned, you can save the result in a text file by using "typeperf -q > counters.txt".
Please note that you may get different performance counters depending on the kind of role VM is hosting - Web Role or Worker Role.