Minimum lockstat events seen

lockstat:::adaptive-spin - yes
lockstat:::adaptive-block - yes
lockstat:::adaptive-acquire - yes
lockstat:::adaptive-release - yes
lockstat:::rw-spin - yes
lockstat:::rw-acquire - no
lockstat:::rw-release - no
lockstat:::spin-spin - yes
lockstat:::spin-acquire - no
lockstat:::spin-release - no

