1Systrace is now part of Catapult project. The catapult directory contains code 2from: 3 4 https://github.com/catapult-project/catapult.git 5 6The file UPSTREAM_REVISION contains the upstream revision number that was last 7pulled. Changes should be made upstream and then pulled into the catapult 8directory. 9 10The update.py script should be used to pull the latest upstream code, update 11the UPSTREAM_REVISION file, and generate systrace_trace_viewer.html. The 12generated file is checked into the git repository, and they get embedded in each 13trace HTML file that systrace.py generates. 14