perf [--version] [--help] COMMAND [ARGS]
Performance counters for Linux are are a new kernel-based subsystem that provide a framework for all things performance analysis. It covers hardware level (CPU/PMU, Performance Monitoring Unit) features and software features (software counters, tracepoints) as well.
perf-stat(1), perf-top(1), perf-record(1), perf-report(1), perf-list(1)