The Talos results for e10s look too good to be true: tsvgx: e10s is ~2x faster https://treeherder.mozilla.org/perf.html#/graphs?series=[mozilla-aurora,4e319bd31abb268406986ec0d4d821887a946c0a,1]&series=[mozilla-aurora,5f3bf26fcaf8b9b21c7f2352ac8c40e2354f3049,1] tsvg-opacity: e10s is ~10x faster https://treeherder.mozilla.org/perf.html#/graphs?series=[mozilla-aurora,34b003f40b446290f744f15e6041dba786fe43d4,1]&series=[mozilla-aurora,39515d8283103ffeb94dfa71444d71ac59cfd348,1] Jonathon, do you have any idea how this might be happening?

The Win7 results for tsvg-opacity actually just recently completely reversed. e10s is now much slower. Anyway, as noted in bug 1174792 comment 3 the tsvg-opacity tests are pretty broken as currently written. They're not really currently measuring rendering speed (their intent) at all. In fact I'm not sure they're even measuring anything useful. The changes we're seeing may just be a shifting of the 'load' event's firing relative to the proportion that we've progressed through rendering. We should fix the tests then reevaluate e10s perf.

win7 numbers - https://treeherder.mozilla.org/perf.html#/graphs?series=%5Bmozilla-central,853637ac0c1be0f5a235043c9122c6ef00e0861c,0%5D&series=%5Bmozilla-central,656e8bf5994af96d33900cd2c8562290b65d833f,0%5D&series=%5Bmozilla-central,34b003f40b446290f744f15e6041dba786fe43d4,1%5D&series=%5Bmozilla-central,39515d8283103ffeb94dfa71444d71ac59cfd348,1%5D Now we're showing a major regression. Note though that Linux64 is looking much more reasonable with a slight perf win under e10s - https://treeherder.mozilla.org/perf.html#/graphs?timerange=2592000&series=%5Bmozilla-central,6981e256ea8173cdb53dec0741ec05e8ace13f30,1%5D&series=%5Bmozilla-central,505e97c4c50669524afd8d210471ceddf62cfe2a,1%5D&series=%5Bmozilla-central,b98a5a90dfcf07eb3d784ca1cd4ade4de6e6c44a,1%5D&series=%5Bmozilla-central,c5ef5b4dcf32f92aeb1a7972dbcf27e24db58e5a,1%5D This is tracked by e10s-perf P5 bug 1174792.

Moving to p3 because no activity for at least 1 year(s). See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information