You may want to give the follow script a try:

* https://gist.github.com/krisselden/d3ce3cbb37cc6035b0927fdbf...

It flips some handy flags providing useful output, this output can quickly illuminate issues the regular tools do not (yet).

Running this on the example you linked to bellow, shows that a series of functions are deopting and optimizing repeatedly. most likely causing at-least some of the sawtooth pattern you see.

example output (likely related to the problem):

  ```
  removing optimized code for: r.getViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r.getViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r._computeViewMatrix]
  [removing optimized code for: r._isSynchronizedViewMatrix]
  [removing optimized code for: r._isSynchronized]
  [removing optimized code for: r.getViewMatrix]
  ```

---

note: Credit for this should go to @krisselden the author of the above gist not me.