WhitePaper
From Perf Wiki
(Difference between revisions)
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== Introduction == | == Introduction == | ||
| + | This page provides various documentation for perf tool. | ||
| + | It's under construction forever. | ||
| − | == | + | === Code trees === |
| + | If not state otherwise all features code described in here is based on: | ||
| − | == | + | <pre> |
| + | git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git | ||
| + | |||
| + | perf/core branch | ||
| + | </pre> | ||
| + | |||
| + | which is regularly based/synced on Arnaldo's tree: | ||
| + | |||
| + | <pre> | ||
| + | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux (fetch) | ||
| + | |||
| + | perf/core branch | ||
| + | </pre> | ||
| + | |||
| + | == Docs == | ||
| + | * <tt>[[jolsa_Docs_Counting| counting explained</tt>]] | ||
| + | * <tt>[[jolsa_Docs_Sampling| sampling explained</tt>]] | ||
| + | * <tt>[[jolsa_Docs_Sampling| diff explained</tt>]] | ||
| + | |||
| + | * <tt>[[jolsa_Docs_Perf_Stat| perf stat</tt>]] | ||
| + | * <tt>[[jolsa_Docs_Perf_Stat| perf record</tt>]] | ||
| + | * <tt>[[jolsa_Docs_Perf_Stat| perf report</tt>]] | ||
| + | * <tt>[[jolsa_Docs_Perf_Stat| perf diff</tt>]] | ||
| + | |||
| + | == Tests == | ||
| + | |||
| + | * <tt>[[jolsa_Tests_Explained| tests explained </tt>]] - how to run/create tests | ||
| + | * <tt>[[jolsa_Tests_Auto| auto test framework </tt>]] - automatic compile/run test | ||
| + | |||
| + | == Howtos == | ||
| + | |||
| + | * <tt>[[jolsa_Howto_Measure_Single_Function_Cycles| measure function cycles</tt>]] - measure single function cycles | ||
== Features == | == Features == | ||
| + | === Merged === | ||
| + | * <tt>[[jolsa_Features_Post_DWARF_Unwind| post DWARF unwind </tt>]] - callchains DWARF unwind | ||
| + | |||
| + | === To be merged === | ||
| + | * <tt>[[jolsa_Features_GroupSampling| group sampling </tt>]] - group leader sampling | ||
| + | * <tt>[[jolsa_Features_MultiDiff| multi diff </tt>]] - diff multiple files | ||
| + | |||
| + | === To be done === | ||
* <tt>[[jolsa_Features_CPU_Hotplug| cpu hotplug</tt>]] - follow cpu hotplug in perf record | * <tt>[[jolsa_Features_CPU_Hotplug| cpu hotplug</tt>]] - follow cpu hotplug in perf record | ||
* <tt>[[jolsa_Features_Stat_Formulas| stat formulas</tt>]] - formulas support over perf stat | * <tt>[[jolsa_Features_Stat_Formulas| stat formulas</tt>]] - formulas support over perf stat | ||
* <tt>[[jolsa_Features_Precise| precise</tt>]] - precise level detection | * <tt>[[jolsa_Features_Precise| precise</tt>]] - precise level detection | ||
* <tt>[[jolsa_Features_Kbuild| kbuild</tt>]] - kernel kbuild support | * <tt>[[jolsa_Features_Kbuild| kbuild</tt>]] - kernel kbuild support | ||
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| − | |||
| − | |||
| − | |||
* <tt>[[jolsa_Features_Mmap| mmap details </tt>]] - report mmap details | * <tt>[[jolsa_Features_Mmap| mmap details </tt>]] - report mmap details | ||
* <tt>[[jolsa_Features_Record_Multiple_Files| multiple data files </tt>]] - record into multiple data files | * <tt>[[jolsa_Features_Record_Multiple_Files| multiple data files </tt>]] - record into multiple data files | ||
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* <tt>[[jolsa_Features_NonArchitectural_Events| nonarchitectural event </tt>]] - nonarchitectural event specification | * <tt>[[jolsa_Features_NonArchitectural_Events| nonarchitectural event </tt>]] - nonarchitectural event specification | ||
* <tt>[[jolsa_Features_Data_File_Merge| data file merge </tt>]] - merge data files by time | * <tt>[[jolsa_Features_Data_File_Merge| data file merge </tt>]] - merge data files by time | ||
| + | * <tt>[[jolsa_Features_Togle_Event| toggle event </tt>]] - run event on another event sample | ||
Revision as of 12:39, 19 June 2013
Contents |
Introduction
This page provides various documentation for perf tool. It's under construction forever.
Code trees
If not state otherwise all features code described in here is based on:
git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/core branch
which is regularly based/synced on Arnaldo's tree:
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux (fetch) perf/core branch
Docs
Tests
- tests explained - how to run/create tests
- auto test framework - automatic compile/run test
Howtos
- measure function cycles - measure single function cycles
Features
Merged
- post DWARF unwind - callchains DWARF unwind
To be merged
- group sampling - group leader sampling
- multi diff - diff multiple files
To be done
- cpu hotplug - follow cpu hotplug in perf record
- stat formulas - formulas support over perf stat
- precise - precise level detection
- kbuild - kernel kbuild support
- mmap details - report mmap details
- multiple data files - record into multiple data files
- top data file - store top data into data file
- nonarchitectural event - nonarchitectural event specification
- data file merge - merge data files by time
- toggle event - run event on another event sample
