From nobody Fri Apr 19 15:43:42 2024 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 4VLf7g5Ljsz5HGHs for ; Fri, 19 Apr 2024 15:43:43 +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 4VLf7g4Hrkz4TlC for ; Fri, 19 Apr 2024 15:43:43 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1713541423; a=rsa-sha256; cv=none; b=A2ANWboqbkPPfkEkP4Yq4Hqtx+Ad6qUQ/fPfVGtkKrI+gJXGpDPeZ5OkC5u1JNEVYKRmv6 jUQHxbGXW1Q+E0WeDzGGoiuHJogd/WWctWxlYyROPSpFH7G+4XBn4tO1vH07p9gqhNhQf8 92+N5Iw9LNmzTbOVfdee1EnSOAlgdAJojmZvPfkRikgv0UB7VXsKXVKBr+L9cPHKYVxem6 FapaxssO3cp0WH4gh1rqVtGjhr5STDtEImOBeGbVdMEeRIZKNv3TURxV6Q4MGTqJDuaRdS 7F5F/FWJgCw6MrRskqLtIAtgEZYJ/FSrMK+CFN7b2Ob+rwx+6/YXWb4RKAzaUA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1713541423; 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=NK9cFHKH00fLW1vHwXWlHjWkdaPsrNTPcBQKQyU/tE8=; b=D6Ditcf8EiOeGiEVS5fjCer0O8oJhM7+sD2L+EutcTA/keev+SAAU1prEvRffbVIp8IgWJ qx8+A1SXm/E5qpz2aXyLzugcl1WKRM9CQGbaUn5sFDDMT4krMP0OhcHXyHYFJiZsdqXvSw +JQgywQciJYQ9m6dzRv8yMw1+LTu2ZRZnDi4yuLtLPtqTdpAs5mYppJlr3MuCvC8s6rlXg p6dKYVkpHpYlAhgTmroRgqOZ8x9Y/nnEQ8v9mixd9eec6Qex4l3Vg8EzGTCSKxUTBJOtcK kIruxlUT8I6Z7y7TeQ1onwvydz6CCROWSElYAgH+0Y2Woh/4ZzDioUN9pVUomg== 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 4VLf7g3vszz104d for ; Fri, 19 Apr 2024 15:43:43 +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 43JFhhXu086282 for ; Fri, 19 Apr 2024 15:43:43 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 43JFhhcG086277 for bugs@FreeBSD.org; Fri, 19 Apr 2024 15:43:43 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 276967] sysctl dev.hwpstate_intel periodically slow Date: Fri, 19 Apr 2024 15:43:42 +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: 13.2-STABLE X-Bugzilla-Keywords: performance X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: Open 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 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276967 --- Comment #3 from Mark Johnston --- (In reply to Thomas Steen Rasmussen / Tykling from comment #2) Yes, this is what I was looking for, but it's a symptom of the problem rath= er than the root cause. In particular, a thread is waiting to run on a partic= ular CPU (in order to read hwpstate MSRs) but is not getting scheduled. It would be useful to see the full procstat output. Then we can see what e= lse is on-CPU. --=20 You are receiving this mail because: You are the assignee for the bug.=