[00:40] - Windows Performance Recorder (UI)
the subfolder is created for .net ngened symbols if you have .net processes running.
[19:18] - Symbols & SymCache
where you able to repro the slow PDB decoding I talked some time ago?
Btw, this slide (http://media.ch9.ms/teched/na/2011/ppt/WCL316.pptx) mentions a program symcachegen.exe to convert PDBs to symcache fies from a command line. Why is this tool not part of the public WPT?
The scroling issue is what I already told during the DP/CP and RP. The older xperfview is better to display such stacks. The new WPA only has scrollbars everywhere