Bug 240123

Summary:	[ iOS ][ macOS ] imported/w3c/web-platform-tests/webrtc/protocol/rtp-clockrate.html is a flaky failure
Product:	WebKit	Reporter:	Karl Rackler <rackler>
Component:	WebRTC	Assignee:	Karl Rackler <rackler>
Status:	NEW ---
Severity:	Normal	CC:	webkit-bot-watchers-bugzilla, webkit-bug-importer, youennf
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Karl Rackler 2022-05-05 09:05:12 PDT

Description:
imported/w3c/web-platform-tests/webrtc/protocol/rtp-clockrate.html

The first failure that I saw on the dashboard for iOS was 4/7/2022 at r292527, but this does not appear relevant to causing this issue.  The first failure that I saw on the dashboard for macOS was Big Sur on 3/11/2022 at r291156, and Monterey was 4/14/2022 at r292859, but neither appear relevant to causing this issue.  

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebrtc%2Fprotocol%2Frtp-clockrate.html&platform=mac&platform=ios&limit=50000

Diff:
--- /Volumes/Data/worker/Apple-iOS-15-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/protocol/rtp-clockrate-expected.txt
+++ /Volumes/Data/worker/Apple-iOS-15-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/webrtc/protocol/rtp-clockrate-actual.txt
@@ -1,3 +1,3 @@
 
-PASS video rtp timestamps increase by approximately 90000 per second
+FAIL video rtp timestamps increase by approximately 90000 per second assert_approx_equals: Video clockrate is approximately 90000 expected 90000 +/- 9000 but got 60169.840452907876

Comment 1 Radar WebKit Bug Importer 2022-05-05 09:05:29 PDT

<rdar://problem/92799257>

Comment 2 Karl Rackler 2022-05-05 09:20:46 PDT

I have marked this test as a flaky failure while this issue is investigated.

Comment 3 Karl Rackler 2022-05-05 09:26:09 PDT

Pull request: https://github.com/WebKit/WebKit/pull/526

Comment 4 EWS 2022-05-05 09:30:14 PDT

Test gardening commit r293840 (250313@main): <https://commits.webkit.org/250313@main>

Reviewed commits have been landed. Closing PR #526 and removing active labels.