Plugin:Intel PMU
From collectd Wiki
| Intel PMU plugin | |
|---|---|
| Type: | read |
| Callbacks: | config, init, read, shutdown |
| Status: | supported |
| First version: | 5.8 |
| Copyright: | 2017–2018 Intel Corporation |
| License: | MIT license |
| Manpage: | collectd.conf(5) |
| List of Plugins | |
The intel_pmu plugin collects information provided by Linux perf interface which provides rich generalized abstractions over hardware specific capabilities. All events are reported on a per core basis.
Performance counters are CPU hardware registers that count hardware events such as instructions executed, cache-misses suffered, or branches mispredicted. They form a basis for profiling applications to trace dynamic control flow and identify hotspots.
For a full description of available options please refer to the collectd.conf(5) manual page.
Synopsis
- → See: Plugin:Intel_PMU/Config
<Plugin intel_pmu> ReportHardwareCacheEvents true ReportKernelPMUEvents true ReportSoftwareEvents true EventList "/var/cache/pmu/GenuineIntel-6-2D-core.json" HardwareEvents "L2_RQSTS.CODE_RD_HIT,L2_RQSTS.CODE_RD_MISS" "L2_RQSTS.ALL_CODE_RD" Cores "0" "1,35" "[12-17]" </Plugin>
For a full description of available options please refer to the collectd.conf(5) manual page.
Example graph
Instructions (counter) corresponding to perf metric PERF_COUNT_HW_INSTRUCTIONS.
History
- Cores option is available since release 5.8.1.
- Support for uncore multi pmu was added in 5.11
