Date: Mon, 14 Jun 2021 08:52:37 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256594 Bug ID: 256594 Summary: AMD Ryzen CPU stutter Product: Base System Version: 13.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: firstname.lastname@example.org Using current CPU: AMD Ryzen 7 5800X 8-Core Processor (3800.07-MHz K8-class CPU) When running X on 13-STABLE, everything has a micro delay. When playing videos, the video keeps stuttering and audio periodically skips. Dragging things are not smooth, screen keeps stalling. An exact description of the problem was reported on the mailing list https://lists.freebsd.org/pipermail/freebsd-current/2021-March/079235.html Setting kern.sched.steal_thresh=0 made the problem go away completely. Anything higher than 0 produces noticeable stuttering and delays in visuals and audio. -- You are receiving this mail because: You are the assignee for the bug.