RESOLVED FIXED304376
Use more efficient network traffic attribution API 
https://bugs.webkit.org/show_bug.cgi?id=304376
Summary Use more efficient network traffic attribution API
Ben Nham
Reported 2025-12-17 18:25:12 PST
In 293525@main we changed prefetched DNS resolution to use nw_parameters_set_source_application_by_bundle_id_internal to attribute the DNS request to the host application. It turns out that this is a pretty inefficient API (it blocks on a sync XPC message for ~10 ms which then goes and enumerates all apps by bundle ID on the system). Fix this by using nw_parameters_set_source_application instead, which doesn't seem to suffer from the same issue.
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-12-17 18:25:21 PST
<rdar://problem/166751326>
Ben Nham
Comment 2 2025-12-17 18:27:25 PST
Pull request: https://github.com/WebKit/WebKit/pull/55601
EWS
Comment 3 2025-12-18 08:53:32 PST
Committed 304682@main (734443e9bf87): <https://commits.webkit.org/304682@main> Reviewed commits have been landed. Closing PR #55601 and removing active labels.
WebKit Commit Bot
Comment 4 2025-12-18 11:10:28 PST
Re-opened since this is blocked by bug 304424
Ben Nham
Comment 5 2025-12-19 12:09:27 PST
Pull request: https://github.com/WebKit/WebKit/pull/55723
EWS
Comment 6 2025-12-19 14:31:01 PST
Committed 304780@main (9f34c252266c): <https://commits.webkit.org/304780@main> Reviewed commits have been landed. Closing PR #55723 and removing active labels.
Note You need to log in before you can comment on or make changes to this bug.