gecko-dev/servo/tests/power/README.md

The power and performance measurement for Servo parallel browser

This script uses PowerMetrics to measure power usage of Servo on OS X

Running

cd servo/tests/power
sudo python PowerMeasure.py

You can define the maximum number of threads in layout level, rendering by cpu, benchmarks and output directory with these command line arguments:

• -b BENCHMARK, --benchmark BENCHMARK sets the benchmark, for example '-B "perf-rainbow.html"'
• -c CPU, --CPU CPU renders with CPU instead of GPU
• -l LAYOUTTHREADS, --LayoutThreads LAYOUTTHREADS sets the maximum number of threads for layout, for example " -L 5"
• -o OUTPUT, --Output OUTPUT specifyes the output directory

Example

This command will measure power and performance for 1 to 5 threads in layout with CPU rendering when we are running the about-mozilla.html benchmark

sudo python PowerMeasure.py -L 5 -c cpu -b "/Desktop/servo/src/test/html/about-mozilla.html" -o /Desktop/Results/