172343 2017-05-18 22:25:14 -0700 Speedometer 2.0: Elem test isn't updating DOM during the measurement 2017-05-19 03:09:15 -0700 1 1 1 Unclassified WebKit Tools / Tests Other Unspecified Unspecified RESOLVED FIXED P2 Normal --- 172339 1 rniwa rniwa addyo cdumez fpizlo ggaren koivisto lforschler saam oldest_to_newest 1310469 0 rniwa 2017-05-18 22:25:14 -0700 Elm has its own work queue which gets executed in setTimeout and requestAnimationFrame. We need to manually trigger these functions to make a meaningful measurement. 1310475 1 310618 rniwa 2017-05-18 22:33:19 -0700 Created attachment 310618 Fixes the Elm test 1310477 2 rniwa 2017-05-18 22:36:41 -0700 Another approach is to wrap each callback to rAF and measure the time spent in each rAF and wait for all rAF callbacks to be done. Unfortunately, this would require quite a bit of reworking in the way Speedometer works, and this is something I thought about it very carefully during the initial development of the benchmark and decided not go with since it really increases the complexity of the benchmark, and makes it really hard to get traces, etc... 1310516 3 310634 rniwa 2017-05-19 01:49:22 -0700 Created attachment 310634 Removed superflous call to console.log 1310548 4 310634 koivisto 2017-05-19 02:56:33 -0700 Comment on attachment 310634 Removed superflous call to console.log View in context: https://bugs.webkit.org/attachment.cgi?id=310634&action=review > PerformanceTests/Speedometer/resources/tests.js:421 > + const callbacks = contentWindow.rAFCallbackList; > + var i = 0; Why 'const' but not 'let'? 1310551 5 310634 rniwa 2017-05-19 03:02:43 -0700 Comment on attachment 310634 Removed superflous call to console.log View in context: https://bugs.webkit.org/attachment.cgi?id=310634&action=review >> PerformanceTests/Speedometer/resources/tests.js:421 >> + var i = 0; > > Why 'const' but not 'let'? Oops, would use var 1310555 6 rniwa 2017-05-19 03:09:15 -0700 Committed r217119: <http://trac.webkit.org/changeset/217119> 310618 2017-05-18 22:33:19 -0700 2017-05-19 01:49:21 -0700 Fixes the Elm test bug-172343-20170518223321.patch text/plain 4501 rniwa SW5kZXg6IFBlcmZvcm1hbmNlVGVzdHMvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFBlcmZvcm1h bmNlVGVzdHMvQ2hhbmdlTG9nCShyZXZpc2lvbiAyMTcwOTYpCisrKyBQZXJmb3JtYW5jZVRlc3Rz L0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDIzIEBACisyMDE3LTA1LTE4ICBS eW9zdWtlIE5pd2EgIDxybml3YUB3ZWJraXQub3JnPgorCisgICAgICAgIFNwZWVkb21ldGVyIDIu MDogRWxlbSB0ZXN0IGlzbid0IHVwZGF0aW5nIERPTSBkdXJpbmcgdGhlIG1lYXN1cmVtZW50Cisg ICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xNzIzNDMKKwor ICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBFbGVtIHRlc3Qg d2Fzbid0IGRvaW5nIG11Y2ggd29yayBiZWNhdXNlIGl0IHNpbXBseSBlbnF1ZXVlcyBpdGVtcyBp 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