On Tuesday 2012-08-28 12:52 -0400, Andrew Halberstadt wrote: > == The Problem == > > Reftests currently assume a window size of 800x1000. This is not > possible on mobile devices, and using this resolution on tegras and > pandas consumes too much memory and results in many timeouts and > random-failures. > > Changing the resolution to something like 400x400 is very stable and > only results in a handful of failures. The problem is it's difficult > to figure out how many tests are false positives as a result of lost > coverage.
I don't think it's that difficult; it does require a decent amount of manual labor (looking at test images for each test, but very quickly), but I don't think it's that huge. (It probably requires a half-second look at each test image; note that there are fewer unique test images than there are tests.) I also don't think we should go quite as small as 400x400 -- and we want to come up with a common value with other browser vendors that are also using reftest. We don't want to be running our reftests at a size smaller than the accepted max size for reftests at W3C. If you have feedback on what the size needs to be, I have contact info for some of the other people we need to talk to. > == Possible Solutions == > > * Somehow figure out the exact pixel width/height required by each > test and re-write the ones that are over the new target resolution I think this is the right path forward. > * Scroll the contentView and use multiple drawWindow calls to stitch > the canvases together piece by piece I think this is probably not compatible with what we do for invalidation tests. > * Disable the DRAW_WIDGET_LAYERS flag so content is rendered off > screen (I'm under the impression this is not a valid solution) Yeah, I think this would mean we'd move what we're testing further from what we're actually shipping. -David -- 𝄞 L. David Baron http://dbaron.org/ 𝄂 𝄢 Mozilla http://www.mozilla.org/ 𝄂 _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
