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1perf(1)2=======3 4NAME5----6perf - Performance analysis tools for Linux7 8SYNOPSIS9--------10[verse]11'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]12 13OPTIONS14-------15-h::16--help::17 Run perf help command.18 19-v::20--version::21 Display perf version.22 23-vv::24 Print the compiled-in status of libraries.25 26--exec-path::27 Display or set exec path.28 29--html-path::30 Display html documentation path.31 32-p::33--paginate::34 Set up pager.35 36--no-pager::37 Do not set pager.38 39--buildid-dir::40 Setup buildid cache directory. It has higher priority41 than buildid.dir config file option.42 43--list-cmds::44 List the most commonly used perf commands.45 46--list-opts::47 List available perf options.48 49--debugfs-dir::50 Set debugfs directory or set environment variable PERF_DEBUGFS_DIR.51 52--debug::53 Setup debug variable (see list below) in value54 range (0, 10). Use like:55 --debug verbose # sets verbose = 156 --debug verbose=2 # sets verbose = 257 58 List of debug variables allowed to set:59 verbose - general debug messages60 ordered-events - ordered events object debug messages61 data-convert - data convert command debug messages62 stderr - write debug output (option -v) to stderr63 in browser mode64 perf-event-open - Print perf_event_open() arguments and65 return value66 kmaps - Print kernel and module maps (perf script67 and perf report without browser)68 69--debug-file::70 Write debug output to a specified file.71 72DESCRIPTION73-----------74Performance counters for Linux are a new kernel-based subsystem75that provide a framework for all things performance analysis. It76covers hardware level (CPU/PMU, Performance Monitoring Unit) features77and software features (software counters, tracepoints) as well.78 79SEE ALSO80--------81linkperf:perf-stat[1], linkperf:perf-top[1],82linkperf:perf-record[1], linkperf:perf-report[1],83linkperf:perf-list[1]84 85linkperf:perf-amd-ibs[1], linkperf:perf-annotate[1],86linkperf:perf-archive[1], linkperf:perf-arm-spe[1],87linkperf:perf-bench[1], linkperf:perf-buildid-cache[1],88linkperf:perf-buildid-list[1], linkperf:perf-c2c[1],89linkperf:perf-config[1], linkperf:perf-data[1], linkperf:perf-diff[1],90linkperf:perf-evlist[1], linkperf:perf-ftrace[1],91linkperf:perf-help[1], linkperf:perf-inject[1],92linkperf:perf-intel-pt[1], linkperf:perf-iostat[1], linkperf:perf-kallsyms[1],93linkperf:perf-kmem[1], linkperf:perf-kvm[1], linkperf:perf-lock[1],94linkperf:perf-mem[1], linkperf:perf-probe[1], linkperf:perf-sched[1],95linkperf:perf-script[1], linkperf:perf-test[1],96linkperf:perf-trace[1], linkperf:perf-version[1]97