1555156 - revisit chunking of mochitest-chrome

Status: RESOLVED FIXED

(Testing :: General, enhancement)

Description

[Edwin Takahashi (:egao | infrequent contributor)]

Summary

Review the chunks for mochitest-chrome-1proc on various platforms to identify possible savings.

Data

Looking at some platforms:

macosx1010-64-shippable/opt

• chunk: 1
• start: 18:50:53
• end: 18:53:27
• diff: 0:02:34

linux64/opt

• chunk: 1
• start: 18:19:00
• end: 18:22:05
• diff: 0:03:05

Each chunk of mochitest-chrome-1proc are taking 2-3 minutes to set up, out of a total runtime of ~12 minutes. This is a significant overhead.

All runs are taken from https://treeherder.mozilla.org/#/jobs?repo=mozilla-central&group_state=expanded&revision=d8321d0b2c5b43933c5e9f201934ec7d4c3a65c0&searchStr=mochitest-chrome-1proc&selectedJob=248778488

Scope

Scope of this project will be to investigate platforms that run mochitest-chrome in under 15 minutes per chunk.

• linux64
• macosx1010
• macosx1014 (pending go-live)
• windows10-64-shippable/opt

Slower platforms (QR, asan, debug, ccov, windows7) are out of the scope.

Comment 1

[Edwin Takahashi (:egao | infrequent contributor)]

Attachment: Bug 1555156 - task efficiency: reduce chunks of mochitest-chrome for selected platforms

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/34f20e6d7678
task efficiency: reduce chunks of mochitest-chrome for selected platforms r=jmaher

Comment 3

[Stefan Hindli [:stefan_hindli]]

https://hg.mozilla.org/mozilla-central/rev/34f20e6d7678