Open Bug 1939605 Opened 2 months ago Updated 22 days ago

youtube music becomes verry slow when switching music after a while

Categories

(Core :: Performance, defect)

Firefox 133
Desktop
Unspecified
defect

Tracking

()

UNCONFIRMED
Performance Impact high

People

(Reporter: andro.marian.v94, Unassigned, NeedInfo)

Details

(Keywords: perf:responsiveness, reproducible)

Attachments

(5 files)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0

Steps to reproduce:

Listening on YouTube music like 8 hours and when pressing on Next button the music is switching with big delay, like 3-4 seconds. Is not instant anymore.

https://share.firefox.dev/40fZhjA

Actual results:

After a while, when the music is changed many time and pressing to change the song, it's adds a delay that is increasing with every switched song, becomes slow.

Expected results:

To switch the song fast no matter how many time I switch the song.

Also if I am logged it seams to add some delay too on Firefox.

Also the RAM is increasing from like 600 MB to almost 3GB. May be a memory leak or I don't know.
But compared to other browser Firefox is very slow.

Component: Untriaged → Performance
Product: Firefox → Core

This bug was moved into the Performance component.

:andro.marian.v94, could you make sure the following information is on this bug?

  • ✅ For slowness or high CPU usage, capture a profile with http://profiler.firefox.com/, upload it and share the link here.
  • For memory usage issues, capture a memory dump from about:memory and attach it to this bug.
  • Troubleshooting information: Go to about:support, click "Copy raw data to clipboard", paste it into a file, save it, and attach the file here.

If the requested information is already in the bug, please confirm it is recent.

Thank you.

Flags: needinfo?(andro.marian.v94)
Attached file memory-report.json.gz

The memory is not really big now

Flags: needinfo?(andro.marian.v94)
Attached file About.txt
Attached file memory-report.json.gz

And the profile of the same instance https://share.firefox.dev/3BIXQ3W

Attached file About.txt

And the About

Another one of these YT issues, the profile looks quite bad especially since it seems to be triggered by perfectly reasonable behavior. Jeff, you might be interested, feel free to ni? someone else of course.

The Performance Impact Calculator has determined this bug's performance impact to be high. If you'd like to request re-triage, you can reset the Performance Impact flag to "?" or needinfo the triage sheriff.

Platforms: Windows
Impact on site: Causes noticeable jank
Websites affected: Major
Resource impact: Severe

Performance Impact: --- → high
Flags: needinfo?(jmuizelaar)

Is helps another one. Almost 4 seconds junk.

Severity: -- → S2
Hardware: Unspecified → Desktop

Are you still seeing the issue on recent builds?

Flags: needinfo?(andro.marian.v94)
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