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Introduce a new flag and use it to be more permissive about cousin sharing #17980

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merged 1 commit into from Aug 5, 2017

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@bholley
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bholley commented Aug 5, 2017

…aring.

MozReview-Commit-ID: BCJg0Ycsy6M
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highfive commented Aug 5, 2017

Heads up! This PR modifies the following files:

  • @canaltinova: components/style/data.rs, components/style/sharing/mod.rs, components/style/traversal.rs, components/style/sharing/checks.rs
  • @emilio: components/style/data.rs, components/style/sharing/mod.rs, components/style/traversal.rs, components/style/sharing/checks.rs
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highfive commented Aug 5, 2017

warning Warning warning

  • These commits modify style code, but no tests are modified. Please consider adding a test!
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bholley commented Aug 5, 2017

@bors-servo r=emilio p=1

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bors-servo commented Aug 5, 2017

📌 Commit 54c5291 has been approved by emilio

@highfive highfive assigned emilio and unassigned jdm Aug 5, 2017
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bors-servo commented Aug 5, 2017

Testing commit 54c5291 with merge b701d72...

bors-servo added a commit that referenced this pull request Aug 5, 2017
Introduce a new flag and use it to be more permissive about cousin sharing

https://bugzilla.mozilla.org/show_bug.cgi?id=1387116

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bors-servo commented Aug 5, 2017

@bors-servo bors-servo merged commit 54c5291 into servo:master Aug 5, 2017
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@ionutgoldan
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ionutgoldan commented Aug 7, 2017

Looks like this brought a noticeable improvement:

== Change summary for alert #8585 (as of August 05 2017 09:41 UTC) ==

Improvements:

7% tp6_amazon summary windows10-64 opt 1_thread e10s stylo 688.38 -> 637.00
7% tp6_amazon summary windows10-64 pgo 1_thread e10s stylo 628.58 -> 585.25

For up to date results, see: https://treeherder.mozilla.org/perf.html#/alerts?id=8585

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ionutgoldan commented Aug 7, 2017

If this improvement somehow wasn't expected, please don't hesitate to email me at ionut.goldan@softvision.ro

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emilio commented Aug 7, 2017

This kind of was expected, but there should've been a regression before from https://bugzilla.mozilla.org/show_bug.cgi?id=1381821

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