1324095 - Add new telemetry probe for excessively long GPU process initialisation time

Status: RESOLVED FIXED

(Core :: Graphics, defect)

Description

[George Wright (:gw280) (needinfo me!)]

We have an existing probe, GPU_PROCESS_LAUNCH_TIME_MS_2, which tracks the total launch time for the GPU process including initialisation and the actual process start.

I think we're going to need another one just to track the various initialisation stuff independent of how long we effectively take to fork.

Comment 1

[George Wright (:gw280) (needinfo me!)]

Attachment: 0001-Bug-1324095-Add-GPU_PROCESS_INITIALIZATION_TIME_MS-t.patch

I debated whether to include XPCOM initialisation time in this probe, and I don't think it's valuable to us. This should really be tracking GPU-process-specific work that's being done during initialisation I think.

Comment 2

[Benjamin Smedberg]

Comment on attachment 8820555 [details] [diff] [review]
0001-Bug-1324095-Add-GPU_PROCESS_INITIALIZATION_TIME_MS-t.patch

argh, I thought I marked this last week; I apologize for the delay.

I do think we should commit to monitoring this permanently, but I don't think we have yet a good way to do that. Please work with RyanVMs team so that we can have the right automated alerting set up for this.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/db66457631b6
Add GPU_PROCESS_INITIALIZATION_TIME_MS to track how long the GPU process takes to initialise excluding fork/xpcom initialisation times r=dvander,data-review=bsmedberg

Comment 4

[Phil Ringnalda (:philor)]

https://hg.mozilla.org/mozilla-central/rev/db66457631b6