Large project with 200 subprojects with mains.
To test sbt performance:
JAVA_OPTS="-Xmx8G" sbt -Dsbt.traces=true -Dsbt.task.timings=true -Dsbt.task.timings.on.shutdown=true ";clean;Test / compile"
See ``timingsCleanCompileOutput.txt` for the current timings.
Actual task traces can be found after the above build in target/traces/build.traces
. Load in Chrome's trace viewer at chrome://tracings