Create a taskcluster job definition for the raptor browsertime page-load test that will run on Win 10 production performance hardware alongside the other raptor test jobs.

This can correctly handle .tar.xz packages, which
_download_fetches does not do.

I do not know under what conditions GECKO_HEAD_* might not be set. I
think there are none but don't know how to prove that, so the fallback
remains.

Depends on D38777

Depends on D38778

Depends on D38779

Depends on D38780

Urgh, non of the releng-hardware we care about has Python zstandard available: see https://treeherder.mozilla.org/#/jobs?repo=try&revision=51843fba863369122e2638215aa0816ce5064b39.

glandium, tomprince: I see at https://searchfox.org/mozilla-central/rev/a650fac7b069ded3d63eba530271ce80e6cafb1b/taskcluster/scripts/misc/fetch-content#367-368 that only .tar.zst is supported. Is that just convenience, or is there a reason to restrict? I'd like to expand to something that's available on releng-hardware, probably .tar.bz2.

Browsertime needs these to produce videos, and to invoke Chrome, respectively.

(In reply to Nick Alexander :nalexander [he/him] from comment #5)

Urgh, non of the releng-hardware we care about has Python zstandard available: see https://treeherder.mozilla.org/#/jobs?repo=try&revision=51843fba863369122e2638215aa0816ce5064b39.

glandium, tomprince: I see at https://searchfox.org/mozilla-central/rev/a650fac7b069ded3d63eba530271ce80e6cafb1b/taskcluster/scripts/misc/fetch-content#367-368 that only .tar.zst is supported. Is that just convenience, or is there a reason to restrict? I'd like to expand to something that's available on releng-hardware, probably .tar.bz2.

It looks like this isn't desired: see Bug 1576698 and the review comments. I'm trying to work around all of these factors in the latest patches.

Try build without --browsertime: https://treeherder.mozilla.org/#/jobs?repo=try&revision=0fd4107f9a5e067b4ba59c2e85468e532247f662
Try build with --browsertime: https://treeherder.mozilla.org/#/jobs?repo=try&selectedJob=265252353&revision=18bcf9c9a82f3ea0f9702626741d802d1f58b700

The browsertime tasks aren't expected to succeed, but they are expected to run in a reasonable environment. (There is some logging, IIRC.)

https://hg.mozilla.org/mozilla-central/rev/da82816d4978
https://hg.mozilla.org/mozilla-central/rev/77c5686583a5

Verified FIXED; I was able to push and try to build/run Browsertime (which, as mentioned in comment 8, isn't expected to pass, but will, and does, build w/correct components):

https://treeherder.mozilla.org/#/jobs?repo=try&tier=1%2C2%2C3&revision=2edd9b6567dee220226d1ef87a3c1e19418335d3&selectedJob=266001871