1583244 - Provide unfuzzed timings for UserTiming markers

Status: RESOLVED FIXED

(Core :: Gecko Profiler, task, P2)

Description

[Greg Tatum [:gregtatum]]

Right now the timing for user timing markers is fuzzed. We should record the unfuzzed timings.

https://searchfox.org/mozilla-central/rev/e3fc8f8970491aef14d3212b2d052942f4d29818/dom/performance/Performance.cpp#229

This is creating issues with using the user timing markers and how they are laid out in visual charts: https://perfht.ml/2kzBIRT

Comment 1

[Jason Laster [:jlast]]

Some notes from slack

https://searchfox.org/mozilla-central/source/dom/performance/Performance.cpp#329-332
startTimeStamp, endTimeStamp are the fuzzed values
It looks like here is where the fuzzing happens for startTime https://searchfox.org/mozilla-central/source/dom/performance/Performance.cpp#280
And likewise for endTime: https://searchfox.org/mozilla-central/source/dom/performance/Performance.cpp#294
Docs for our memory tooling: https://deploy-preview-2261--perf-html.netlify.com/docs/#/./memory-allocations

Comment 2

[Jason Laster [:jlast]]

Attachment: Bug 1583244 - Provide unfuzzed timings for UserTiming markers. r=gregtatum

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b15c0747d702
Provide unfuzzed timings for UserTiming markers. r=gregtatum

Comment 4

[Bogdan Tara[:bogdan_tara | bogdant]]

https://hg.mozilla.org/mozilla-central/rev/b15c0747d702