Bug 248602 - Slow performance than other browsers in IE Test Drive PopCorn Benchmark
Summary: Slow performance than other browsers in IE Test Drive PopCorn Benchmark
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2022-12-01 07:22 PST by Ahmad Saleem
Modified: 2022-12-01 13:25 PST (History)
6 users (show)

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Description Ahmad Saleem 2022-12-01 07:22:59 PST 
Hi Team,

While just doing bit synthetic benchmark testings, I came across following:

Benchmark - https://testdrive-archive.azurewebsites.net/Performance/Popcorn/Default.html

Safari 16.1 (stutters visually and audio as well) - 8.11 seconds
Safari Technology Preview 159 (stutters visually and audio as well) - 7.17 seconds (6.66 in Private Mode) [I do have AdGuard installed]
Chrome Canary 110 - 1.79 seconds (no stutter)
Firefox Nightly 109 - 1.33 seconds (no stutter).

___

MacBook Pro 14 inch - M1 Pro - 16 GB - Baseline

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I think we should investigate both audio stutter and slow performance as well.

Thanks!
Comment 1 Ahmad Saleem 2022-12-01 07:31:13 PST 
NOTE - I selected "large" popcorn size.
Comment 2 Alexey Proskuryakov 2022-12-01 09:04:35 PST 
I cannot reproduce that much of a difference with newer macOS/Safari on an Intel MacBook Pro, FWIW: Safari was 3.5 seconds, and Chrome was 2.5 seconds.

Looks like most time is spent in PlatformMediaSessionManager::maybeActivateAudioSession().
Comment 3 Alexey Proskuryakov 2022-12-01 09:07:38 PST 
That was with default (medium) size. With large, I'm getting 9 seconds in Safari, and 3.5 in Chrome.
Comment 4 Radar WebKit Bug Importer 2022-12-01 13:25:04 PST 
<rdar://problem/102874433>