Jeff Muizelaar [:jrmuizel] Reporter
	Description • 8 years ago

      No description provided.

	Jeff Muizelaar [:jrmuizel] Reporter
	Comment 1 • 8 years ago

See https://people.mozilla.org/~danderson/moz-gfx-telemetry/www/#view=webgl1 for statistics

	Jukka Jylänki
	Comment 2 • 8 years ago

Hey thanks Jeff for the link!

What can we understand from this?
  - this is definitely a Windows specific problem, and not a fringe OS issue: 99.0% of the failures are on Windows, 1.0% on other
  - this is definitely a popular GPU vendor problem (Intel+AMD+nVidia) and not a fringe vendor issue: 85.5% of the failures are explained by Intel+AMD+nVidia.
  - the hypothesis/assumption that failures would be old Windows (XP) specific doesn't seem to hold ground, Win 7 SP1 seems to give most failures (52.7%), followed by XP (15.8%) and Win 7 (12.5%)
  - Intel GPUs have the majority of failures (56.5%), but the other vendors, AMD and nVidia, have a non-negligible number of failures as well (17.6% and 11.5% respectively)

So the data points to a Windows + Intel/AMD/nVidia issue, but looking at the "by Device Chipset" and "by Device Driver" diagrams, the data becomes muddy:
  - looking at by chipset, 52.7% of failures are due to Intel integrated, scattered across both old and new Intel chips, so not explained by "old Intel GPU" hypothesis since also new Intel GPUs are well represented. Why would we have failures relatively across all Intel integrated GPUs?
  - looking at by chipset, almost half of the failures (43.8%) are due to "other" or "unrecognized" suggesting missing data. What could these be?
  - looking at by driver, 51.6% are by "other" or "unknown". What could these be?
  - looking at by driver, 32.9% are due to various Intel drivers. Are these items caused by blacklisting http://lxr.mozilla.org/mozilla-central/source/widget/windows/GfxInfo.cpp#945 ?
  - looking at by driver, AMD GPU driver 9.6 or older on any Windows OS: 8.9% due to http://lxr.mozilla.org/mozilla-central/source/widget/windows/GfxInfo.cpp#847 ?
  - looking at by driver, NVIDIA GPU driver 182.65 or older on Windows 7 or older: 5.6% due to http://lxr.mozilla.org/mozilla-central/source/widget/windows/GfxInfo.cpp#831 ?

One thing I tried to understand from the data is to break down the users we lose at https://telemetry.mozilla.org/new-pipeline/evo.html#!aggregates=bucket-0!bucket-1!bucket-2&cumulative=0&end_date=2016-01-18&keys=!__none__!__none__&max_channel_version=aurora%2F47&measure=CANVAS_WEBGL_SUCCESS&min_channel_version=aurora%2F47&product=Firefox&sanitize=0&sort_keys=submissions&start_date=2015-12-17&trim=1&use_submission_date=1 , how many of these are due to a result of blocklisting by anything in http://lxr.mozilla.org/mozilla-central/source/widget/windows/GfxInfo.cpp#820, and how many of these are due to something else (no driver at all, no new enough D3D/GL API version available)? Do we have that data?

	Jeff Muizelaar [:jrmuizel] Reporter
	Comment 3 • 8 years ago

FWIW, the most important thing to do here is probably to get WARP working in as many places as possible. That should allow us to give pretty much everyone on Windows 7+ a working WebGL albeit software.

	Benoit Girard (:BenWa)
	Comment 4 • 8 years ago

Dashboard for understanding webgl failures:
https://people.mozilla.org/~danderson/moz-gfx-telemetry/www/#view=glfail