From nobody Mon Feb 21 19:18:18 2022 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id F270419CB3F6 for ; Mon, 21 Feb 2022 19:18:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4K2XBy5hxnz3l5M for ; Mon, 21 Feb 2022 19:18:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id A560E15FDD for ; Mon, 21 Feb 2022 19:18:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 21LJIIix060241 for ; Mon, 21 Feb 2022 19:18:18 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 21LJIIUV060240 for bugs@FreeBSD.org; Mon, 21 Feb 2022 19:18:18 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 256594] AMD Ryzen CPU stutter (responsiveness lag) Date: Mon, 21 Feb 2022 19:18:18 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.0-STABLE X-Bugzilla-Keywords: performance X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: bobf@mrp3.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1645471098; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=25b3KIKAZ3k+GRcuOsnWhjMibjWixZs/sXGr88iKI+8=; b=mKukQnibP8Ray6+JBtUsX8blbrVUC2YFbS8qNY/UihVrLBbzKM0zIb4DOIZizgECWZVkIO AVUTf8taWDmsWvibTOWY5B1oofGOiwbYUPMGfRJ/+vrRgZE6WLbP+3EBdX4zzeH230tP71 MpfqV6KjsNi6Iv91fJkSv95Cp4gRJNRlFhnF/M6tkvoRYNEQ4D5iQj9Py/NibuALVgQ6lq NDbRWUtZSPHvv05ERPw1Ia3tuWA6vwbBb/DsiMlMinBlTv7agZzx2KT8BkvfAtpWDhoXTw zaWAkKaz3THnyjs7cxr9OlIYrFqNnda8pdiZGq/KvFfg/lRCuRAe38RJTapXnQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1645471098; a=rsa-sha256; cv=none; b=tHpzn4vaAYGRuexbXwqzGlqGXYR5RVliYVImjibZs1M/l/pUnweJy9wZ1zVBRdy/ThCVL9 O1h5KnKIlztuuHPNNSHtmCCJ0TF/h/Jn+EDnqHFxq5nOq7762RRUlI14Qjh1PER6lfjryR eMnGL5mhv5ZihIXcs2VbbHNo1eKeQMRkm8paULUh0pdIvIFt8CXu9Kb18BsTGhdyWas1b0 ybCQCAyAdGYRS50IErjB6fqmTfL3wwf3d7DLlSvRX9KCg9/JvgDcd+XCZ4LeTjLJmsFtWR i4mfaKtCHyNfxi+RSRj3slce8fVhO+Ckvj0s5gy/eQ42VvUpiBrdcHikmhxB9w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256594 --- Comment #7 from Bob Frazier --- (In reply to Andriy Gapon from comment #4) can you also try kern.eventtimer.timer=3DHPET ? (this seems to make the most difference, especially if you have LAPIC assig= ned which I think is the default, and my guess is that it's pointing at the root cause of the problem if changing the event timer helps as much as I think it will) --=20 You are receiving this mail because: You are the assignee for the bug.=