HP Caliper User's Guide

sysbus
Provides metrics on system bus utilization. If you specify the
sysbus event set, you must use the --bus-speed option to
provide bus speed in MHz. For example: --bus-speed 200.
threadswitch
Provides data about the effect of HyperThreading on the measured
processes for Integrity servers dual-core Itanium 2 and Itanium
9300 quad-core processor systems.
tlb
Provides metrics related to translation lookaside buffer (TLB)
misses.
cpu Measurement Report Description 239