servo/servo — pull request #3708 by glennw (2014-10-17 00:16:46+00:00)
Title: Add task profiler, which works by instrumenting each task runtime when enabled.

@pcwalton - I'm not sure if there's any gotchas or downsides to profiling using this technique to instrument the runtime. Happy to close this if it doesn't seem like a good idea to you. r?