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perf(1) [opendarwin man page]

PERF(1) 						      General Commands Manual							   PERF(1)

perf - performance analysis tools for Linux SYNOPSIS
perf [--version] [--help] COMMAND [ARGS] DESCRIPTION
Performance counters for Linux are are a new kernel-based subsystem that provide a framework for all things performance analysis. It cov- ers hardware level (CPU/PMU, Performance Monitoring Unit) features and software features (software counters, tracepoints) as well. Each version of the perf tools may depend on new kernel features, so you must install a different version for each kernel version. The perf command will automatically run the correct version for the running kernel version. SEE ALSO
perf_version(1) 4 July 2010 PERF(1)

Check Out this Related Man Page

TAPSET::PERF(3stap)													       TAPSET::PERF(3stap)

tapset::perf - systemtap perf probe points DESCRIPTION
This family of probe points is used to probe "perf events" on suitably configured kernels (2.6.33+). It contains a number of aliases for the ABI-specified event type/config tuples. The default sampling interval of the translator(1000000) is not overridden, so some of these probe points may fire very infrequently. Use the lower level perf.type(AA).config(BB).sample(CC) probe point if this is a problem. perf.hw.* A variety of hardware events, as generalized by the kernel. These generally require running on bare hardware with selected proces- sors. probe perf.hw.cpu_cycles probe perf.hw.instructions probe perf.hw.cache_references probe perf.hw.cache_misses probe perf.hw.branch_instructions probe perf.hw.branch_misses probe perf.hw.bus_cycles perf.sw.* Special "software" events provided by the kernel. These sometimes work in virtualized environments and with more processor archi- tectures. probe perf.sw.cpu_clock probe perf.sw.task_clock probe perf.sw.page_faults probe perf.sw.context_switches probe perf.sw.cpu_migrations probe perf.sw.page_faults_min probe perf.sw.page_faults_maj probe perf.sw.alignment_faults probe perf.sw.emulation_faults perf.hw_cache.TYPE.ACCESS.RESULT Hardware cache events, where available. A subset of the following cartesian product may be available: probe perf.hw_cache.l1d.*.* probe perf.hw_cache.l1i.*.* probe perf.hw_cache.ll.*.* probe perf.hw_cache.dtlb.*.* probe perf.hw_cache.itlb.*.* probe perf.hw_cache.bpu.*.* probe perf.hw_cache.*.read.* probe perf.hw_cache.*.write.* probe perf.hw_cache.*.prefetch.* probe perf.hw_cache.*.*.access probe perf.hw_cache.*.*.miss SEE ALSO
stap(1), stapprobes(3stap) IBM
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