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78 lines
1.9 KiB
78 lines
1.9 KiB
perf(1) |
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======= |
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NAME |
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---- |
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perf - Performance analysis tools for Linux |
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SYNOPSIS |
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-------- |
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[verse] |
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'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] |
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OPTIONS |
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------- |
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-h:: |
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--help:: |
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Run perf help command. |
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-v:: |
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--version:: |
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Display perf version. |
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-vv:: |
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Print the compiled-in status of libraries. |
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--exec-path:: |
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Display or set exec path. |
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--html-path:: |
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Display html documentation path. |
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-p:: |
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--paginate:: |
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Set up pager. |
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--no-pager:: |
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Do not set pager. |
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--buildid-dir:: |
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Setup buildid cache directory. It has higher priority |
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than buildid.dir config file option. |
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--list-cmds:: |
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List the most commonly used perf commands. |
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--list-opts:: |
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List available perf options. |
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--debugfs-dir:: |
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Set debugfs directory or set environment variable PERF_DEBUGFS_DIR. |
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--debug:: |
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Setup debug variable (see list below) in value |
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range (0, 10). Use like: |
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--debug verbose # sets verbose = 1 |
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--debug verbose=2 # sets verbose = 2 |
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List of debug variables allowed to set: |
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verbose - general debug messages |
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ordered-events - ordered events object debug messages |
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data-convert - data convert command debug messages |
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stderr - write debug output (option -v) to stderr |
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in browser mode |
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perf-event-open - Print perf_event_open() arguments and |
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return value |
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DESCRIPTION |
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----------- |
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Performance counters for Linux are a new kernel-based subsystem |
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that provide a framework for all things performance analysis. It |
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covers hardware level (CPU/PMU, Performance Monitoring Unit) features |
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and software features (software counters, tracepoints) as well. |
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SEE ALSO |
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-------- |
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linkperf:perf-stat[1], linkperf:perf-top[1], |
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linkperf:perf-record[1], linkperf:perf-report[1], |
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linkperf:perf-list[1]
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