FWIW The benchmark that I've done shows that there is no performance win by spawning multiple tasks when top level task was started by `start_on_main_thread()`: https://gist.github.com/ILyoan/6945608
The output of the test implies spawning multi tasks from top level task started on main thread doesn't exploits multi cores, but normal started test shows performance improvement. Not sure but I tentatively belive that similar phenomena arise on servo as well. Thanks, Ilyong _______________________________________________ dev-servo mailing list dev-servo@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-servo
