usage: perf [--version] [--help] [OPTIONS] COMMAND [ARGS]

 The most commonly used perf commands are:

   annotate        Read perf.data (created by perf record) and display annotated code

   archive         Create archive with object files with build-ids found in perf.data file

   bench           General framework for benchmark suites

   buildid-cache   Manage build-id cache.

   buildid-list    List the buildids in a perf.data file

   data            Data file related processing

   diff            Read perf.data files and display the differential profile

   evlist          List the event names in a perf.data file

   inject          Filter to augment the events stream with additional information

   kmem            Tool to trace/measure kernel memory properties

   kvm             Tool to trace/measure kvm guest os

   list            List all symbolic event types

   lock            Analyze lock events

   mem             Profile memory accesses

   record          Run a command and record its profile into perf.data

   report          Read perf.data (created by perf record) and display the profile

   sched           Tool to trace/measure scheduler properties (latencies)

   script          Read perf.data (created by perf record) and display trace output

   stat            Run a command and gather performance counter statistics

   test            Runs sanity tests.

   timechart       Tool to visualize total system behavior during a workload

   top             System profiling tool.

   trace           strace inspired tool

   probe           Define new dynamic tracepoints

 See 'perf help COMMAND' for more information on a specific command.