failures in Ru jobs: https://treeherder.mozilla.org/#/jobs?repo=try&revision=014799f4c401f271d60c20a3f2d5970478978599&filter-searchStr=Ru&exclusion_profile=false Ru1 failures: REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/abs-pos/select-3.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/abs-pos/select-3-ref.html | image comparison, max difference: 143, number of differing pixels: 107 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/text-overflow/scroll-rounding.html == http://localhost:49843/1504879990040/186/text-overflow/scroll-rounding-ref.html | image comparison, max difference: 149, number of differing pixels: 1454 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/columns/fieldset-columns-001.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/columns/fieldset-columns-001-ref.html | image comparison, max difference: 142, number of differing pixels: 223 Ru2 failures: REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/display-block-baselines-1.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/display-block-baselines-1-ref.html | image comparison, max difference: 88, number of differing pixels: 624 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/fieldset/positioned-container-1.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/fieldset/positioned-container-1-ref.html | image comparison, max difference: 142, number of differing pixels: 223 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/input/text/size-1.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/forms/input/text/size-1-ref.html | image comparison, max difference: 151, number of differing pixels: 94 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-right-bottom.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-right-bottom-ref.html | image comparison, max difference: 149, number of differing pixels: 474 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-top-left.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-top-left-ref.html | image comparison, max difference: 149, number of differing pixels: 474 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-right-bottom-table.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-right-bottom-table-ref.html | image comparison, max difference: 144, number of differing pixels: 482 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-top-left-table.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/position-dynamic-changes/relative/move-top-left-table-ref.html | image comparison, max difference: 144, number of differing pixels: 482 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/scrolling/less-than-scrollbar-height.html == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/scrolling/less-than-scrollbar-height-ref.html | image comparison, max difference: 149, number of differing pixels: 3730 REFTEST TEST-UNEXPECTED-FAIL | file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/svg/svg-integration/box-decoration-break-02.xhtml == file:///C:/slave/test/build/tests/reftest/tests/layout/reftests/svg/svg-integration/box-decoration-break-02-ref.xhtml | image comparison, max difference: 62, number of differing pixels: 4

out of the 12 failures above, I have: Bug 1398918 - 5 failures in |R & A Pos| Bug 1398919 - 3 failures in |Form Control| I wonder if there is a root cause to fix those and then reevaluate the remaining 4 failures.

here is a try push showing how green this is: https://treeherder.mozilla.org/#/jobs?repo=try&revision=96de8c90a1fc689af6082d4873db9ac131726cb5&filter-tier=1&filter-tier=2&filter-tier=3

Comment on attachment 8908175 [details] [diff] [review] migrate reftest-no-accel to win10, adjust all expectations Review of attachment 8908175 [details] [diff] [review]: ----------------------------------------------------------------- Nice, lgtm!

Pushed by jmaher@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/ba27e91673d0 make reftest-no-accel run on windows 10 (hardware) instead of windows 8. r=ahal,jet