Public bug reported:

(problem forked from bug 1549455)

Unity8 on Intel Pineview performs very poorly. Frame times appears to be
up to 900ms, Qt's renderer thread using 100% CPU.

Running unity8 with MESA_DEBUG=1 EGL_LOG_LEVEL=debug reveals a few MESA errors:
http://paste.ubuntu.com/16344427/

Quoting @vanvugt "Those Mesa errors "Mesa: User error:" all look like
OpenGL features that Unity8 is hitting but mir-demos don't. So those gl
calls are also good candidates for explaining poor performance,
especially if Mesa is falling back to software rendering for them."

Since Qt tends to perform just fine on that hardware in X11, something
isn't right.

** Affects: unity8 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1580792

Title:
  Unity8 on Intel Pineview performs poorly

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