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6e27b2ae0e
Extend BuildPerfTest class with a new method for measuring the system resource usage of a shell command to BuildPerfTest class. For now, easurement of the elapsed time is done with the Gnu time utility, similarly to the build-perf-test.sh shell script. And, it currently only records the elapsed (wall clock). The measured values (currently, only the elapsed time) is actually a dictionary, making it possible to extend it with additional resource values, e.g. cpu time or i/o usage, in the future. In addition to the actual values of the measurement each record contains a 'name' and 'legend' where name is supposed to function as a common key or id over test runs, making comparison and trending easier, for example. Legend is supposed to be a short human readable description. (From OE-Core rev: ced156bfea4a6649d201f41275641a633f218322) Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>