1370293 - quantum-pageload talos, only measures onload

Status: RESOLVED FIXED

(Testing :: Talos, enhancement)

Description

[Joel Maher ( :jmaher ) (UTC -8)]

I noticed we are only measuring onload, not onload+mozafterpaint for the new quantum-pageload test on talos.  I did a try push and see that our numbers would be about 20ms (~4%) higher if we added mozafterpaint:
https://treeherder.mozilla.org/perf.html#/compare?originalProject=try&originalRevision=cb51dfbdbc33&newProject=try&newRevision=ef4b52938d13ee3c750eeb4204d77b01dc4bda86&framework=1&filter=quantum&showOnlyImportant=0

I know in the future our goal is a hero-element, but this isn't available.  Should we switch now to mozafterpaint, or leave things as they are?

Comment 1

[Benjamin Smedberg]

Our end goal is to measure first-nonblank-paint and the hero element.

Programmatic exposition of first-nonblank-paint is https://bugzilla.mozilla.org/show_bug.cgi?id=1210906 - you probably need to ping mstange about whether that will be ready soon. I don't know what mozafterpaint measures, so I'm not sure whether it's equivalent to this.

I'm not sure whether programmatic exposition of hero element(s) is filed yet.

Comment 2

[Joel Maher ( :jmaher ) (UTC -8)]

ok, I won't do anything yet, but will wait for bug 1210906 to be completed- it looks as though :mstange is needinfo'd on the bug; I do not see that bug as assigned and it hasn't been very active.

When these bugs are completed we will figure out how to measure these events!

Comment 3

[Robert Wood [:rwood]]

Update: First non-blank paint was implemented awhile back in tp6; leaving this open though for when 'hero element' is implemented.

Comment 4

[Joel Maher ( :jmaher ) (UTC -8)]

we have done this in raptor.