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Add shell scripts to make it easier to collect performance results from traces, live tests, and phoronix tests. With run_performance_tests.sh you specify the following: - a subject program to run, using --root - a name to give to this set of results, using --variant - a test to run, using --test - a file to write the results to, using --results. For tests that start with "trace", the script runs falco/sysdig on the trace file and measures the time taken to read the file. For other tests, he script handles starting falco/sysdig, starting a cpu measurement script (a wrapper around top, just to provide identical values to what you would see using top) to measure the cpu usage of falco/sysdig, and running a live test. The measurement interval for cpu usage depends on the test being run--10 seconds for most tests, 2 seconds for shorter tests. The output is written as json to the file specified in --results. Also add R scripts to easily display the results from the shell script. plot-live.r shows a linechart of the cpu usage for the provided variants over time. plot-traces.r shows grouped barcharts showing user/system/total time taken for the provided variants and traces. One bug--you have to make the results file actual json by adding leading/trailing []s.