258536 2023-06-26 15:28:24 -0700 Bump process priority during responsiveness checks to avoid false positives 2023-06-28 08:40:30 -0700 1 1 1 Unclassified WebKit WebKit2 WebKit Nightly Build Unspecified Unspecified REOPENED InRadar P2 Normal --- 258624 1 cdumez cdumez commit-queue kkinnunen webkit-bug-importer oldest_to_newest 1963687 0 cdumez 2023-06-26 15:28:24 -0700 We recently adopted RunningBoard on macOS and our child processes priorities are now tied to RunningBoard assertions that we hold on their behalf. This means that WebProcesses backing background tabs now get a much lower process priority than they used to. Given that the responsiveness timeout is fairly short (3 seconds), this can lead to false positives. To address the issue, we now hold a foreground assertion during the responsiveness check instead of the implicit background one taken by sendWithAsyncReply(). 1963688 1 cdumez 2023-06-26 15:29:58 -0700 Pull request: https://github.com/WebKit/WebKit/pull/15307 1963700 2 ews-feeder 2023-06-26 16:18:39 -0700 Committed 265532@main (5b1e40d5fffc): <https://commits.webkit.org/265532@main> Reviewed commits have been landed. Closing PR #15307 and removing active labels. 1963701 3 webkit-bug-importer 2023-06-26 16:19:16 -0700 <rdar://problem/111354639> 1964031 4 commit-queue 2023-06-28 08:40:30 -0700 Re-opened since this is blocked by bug 258624