1761596 - Regression in Inferno-TodoMVC/CompletingAllItems/Async around Mar14-16 mark

Status: RESOLVED WONTFIX

(Core :: Web Painting, defect)

Description

[Mayank Bansal]

Look at https://treeherder.mozilla.org/perfherder/graphs?highlightAlerts=1&highlightChangelogData=1&highlightCommonAlerts=0&series=autoland,3912894,1,13&timerange=5184000

There is a regression around the Mar14-16 mark.
Pushlog says : https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=86858987c84c49bf479f7a52d55832e6f6833bad&tochange=472418229a5101649dbc77e31669d1e9fd2aea7b

Which might point to : bug 1436400

Not sure how real, significant, or important this regression is.

Comment 1

[Tooru Fujisawa [:arai]]

I don't see the regression with bug 1436400 patch:
https://treeherder.mozilla.org/perfherder/comparesubtest?originalProject=try&newProject=try&newRevision=3ebbffee51d809ff1adfb95f4815e23c9da582d3&originalSignature=3451139&newSignature=3451139&framework=13&originalRevision=da3218d5ae93326bd226564f97ee962c7969479f&page=1

Comment 2

[Alexandru Ionescu (needinfo me) [:alexandrui]]

did a backfill to see the regressor.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:sdetar, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 4

[Nicolas B. Pierron [:nbp]]

if perf-herder is not consistent in reporting bug 1436400 as a regressor and not as a regressor (comment 1).
There is probably some missing pieces to explain this difference.

Feel free to re-open this bug once you found explanation to justify the performance regression on central and the non-performance regression on try.

Comment 5

[Tooru Fujisawa [:arai]]

I think it's just that the regression comes from different change in the following range:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=86858987c84c49bf479f7a52d55832e6f6833bad&tochange=da82675f86d7db615b7e8881fe6ef9ede05f7bef

triggered more backfill.

Comment 6

[Tooru Fujisawa [:arai]]

it's from bug 1759514.
https://treeherder.mozilla.org/jobs?repo=autoland&searchStr=speedo%2Cwindows&tochange=65c2623a2d3567002f440a0704b9b7b2b03d7115&fromchange=5e3aa0131bdb45a9200c5b42b3f6a4d3bd8eb3aa

Comment 7

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1759514

Comment 8

[BugBot [:suhaib / :marco/ :calixte]]

:miko, since you are the author of the regressor, bug 1759514, could you take a look?
For more information, please visit auto_nag documentation.

Comment 9

[Miko Mynttinen]

This is the old baseline.