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README for matrix-report.pl
===========================
This program processes perf.data files to produce a matrix profile
in HTML format. The resulting HTML uses Javascript and CSS so requires
a reasonably modern web browser to view.
How to use
==========
Perf record must be run with --all-cpus. For example:
$ perf record --all-cpus <testcommand>
$ perl .../matrix-report.pl --input perf.data --output report.html
Command line interface
======================
--report-interval <number of seconds per timeslot> [default: 1]
* this option selects the time represented by each row in
the output matrix.
--sample-interval <perf sample interval>
--sample-frequency <perf sample frequency> [default: automatic]
* can be used if matrix-report.pl does not correctly determine
the perf sampling frequency
--min-task-cpu <%age> [default: 1]
* tasks below this %age CPU usage are hidden from the default
display
--output <path> [default: stdout]
* filename to generate output
--input <path>
* path to perf.data file
--perf <path> [default: perf]
* name of perf binary to use for analysing perf.data file
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