tree 50174d23fc7028bba234ab5eafc8f579df67b3d7
parent aa9510396e92c8bba47919b3d6a303efaa473fee
author Daniel Dunbar <daniel_dunbar@apple.com> 1497396725 -0700
committer Daniel Dunbar <daniel_dunbar@apple.com> 1497396725 -0700

[utils] Add rudimentary process tree timing tool.

 - This uses dtrace + interpositioning to try and track timing information for a
   full process tree, which can be useful when analyzing build system
   performance.
 
 - This has only been tested on macOS, in very limited circumstances.