perf (1) - Linux Man Pages
perf: Performance analysis tools for Linux
perf - Performance analysis tools for Linux
perf [--version] [--help] [OPTIONS] COMMAND [ARGS]
- Setup debug variable (just verbose for now) in value range (0, 10). Use like: --debug verbose # sets verbose = 1 --debug verbose=2 # sets verbose = 2
Performance counters for Linux 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.