6 perf - Performance analysis tools for Linux
11 'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]
17 Run perf help command.
24 Print the compiled-in status of libraries.
27 Display or set exec path.
30 Display html documentation path.
40 Setup buildid cache directory. It has higher priority
41 than buildid.dir config file option.
44 List the most commonly used perf commands.
47 List available perf options.
50 Set debugfs directory or set environment variable PERF_DEBUGFS_DIR.
53 Setup debug variable (see list below) in value
54 range (0, 10). Use like:
55 --debug verbose # sets verbose = 1
56 --debug verbose=2 # sets verbose = 2
58 List of debug variables allowed to set:
59 verbose - general debug messages
60 ordered-events - ordered events object debug messages
61 data-convert - data convert command debug messages
62 stderr - write debug output (option -v) to stderr
64 perf-event-open - Print perf_event_open() arguments and
69 Performance counters for Linux are a new kernel-based subsystem
70 that provide a framework for all things performance analysis. It
71 covers hardware level (CPU/PMU, Performance Monitoring Unit) features
72 and software features (software counters, tracepoints) as well.
76 linkperf:perf-stat[1], linkperf:perf-top[1],
77 linkperf:perf-record[1], linkperf:perf-report[1],