PERF(1)                     General Commands Manual                    PERF(1)



NAME
       perf - performance analysis tools for Linux

SYNOPSIS
       perf [--version] [--help] COMMAND [ARGS]

DESCRIPTION
       Performance  counters  for  Linux  are are a new kernel-based subsystem
       that provide a framework for all things performance analysis.  It  cov-
       ers  hardware level (CPU/PMU, Performance Monitoring Unit) features and
       software features (software counters, tracepoints) as well.

       Each version of the perf tools may depend on new  kernel  features,  so
       you must install a different version for each kernel version.  The perf
       command will automatically run the correct version for the running ker-
       nel version.

SEE ALSO
       perf_version(1)



                                  4 July 2010                          PERF(1)
