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PERF_5.0(1) perf Manual PERF_5.0(1)

NAME

perf - Performance analysis tools for Linux

SYNOPSIS

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

OPTIONS

--debug

Setup debug variable (see list below) in value range (0, 10). Use like: --debug verbose # sets verbose = 1 --debug verbose=2 # sets verbose = 2 

List of debug variables allowed to set:


  verbose          - general debug messages


  ordered-events   - ordered events object debug messages


  data-convert     - data convert command debug messages

--buildid-dir

Setup buildid cache directory. It has higher priority than buildid.dir config file option.

-v, --version

Display perf version.

-h, --help

Run perf help command.

DESCRIPTION

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.

SEE ALSO

perf-stat(1), perf-top(1), perf-record(1), perf-report(1), perf-list(1)

2019-03-18 perf