From owner-freebsd-bugs@freebsd.org Sat Jul 11 11:47:06 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A2CF136028B for ; Sat, 11 Jul 2020 11:47:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4B3p6f3vqhz3Yxj for ; Sat, 11 Jul 2020 11:47:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 8627C36028A; Sat, 11 Jul 2020 11:47:06 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 85EE5360289 for ; Sat, 11 Jul 2020 11:47:06 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B3p6f2zSgz3Yvw for ; Sat, 11 Jul 2020 11:47:06 +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 49D51123E2 for ; Sat, 11 Jul 2020 11:47:06 +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 06BBl6lk015291 for ; Sat, 11 Jul 2020 11:47:06 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 06BBl6W6015290 for bugs@FreeBSD.org; Sat, 11 Jul 2020 11:47:06 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 247829] Constant load of 1 on a recent 12.1-STABLE with 3 ZFS pools (high rates of zfskern{mmp_thread_enter}) Date: Sat, 11 Jul 2020 11:47:06 +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: 12.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: jamie@catflap.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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 MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Jul 2020 11:47:06 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D247829 Jamie Landeg-Jones changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jamie@catflap.org --- Comment #1 from Jamie Landeg-Jones --- Yes, I just updated 12.1-stable from a previous 13th May build, and I'm now seeing similar. I don't get quite up to 1.00 but I only have ZFS on an /archive partition t= hat is literally idle. I have one zfskern{mmp_thread_enter} continuously using 3% of one CPU core = of an i7-7567-U 3.5GHz PID JID USERNAME PRI NICE SIZE RES SWAP STATE C TIME WCPU COMMAND 11 0 root 155 ki31 0B 64K 0B CPU3 3 38.3H 99.2= 9% [idle{idle: cpu3}] 11 0 root 155 ki31 0B 64K 0B CPU1 1 38.1H 99.0= 0% [idle{idle: cpu1}] 11 0 root 155 ki31 0B 64K 0B CPU0 0 38.1H 98.5= 3% [idle{idle: cpu0}] 11 0 root 155 ki31 0B 64K 0B RUN 2 38.0H 98.3= 4% [idle{idle: cpu2}]=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 46 0 root -8 - 0B= =20=20 656K 0B RUN 0 66:45 2.90% [zfskern{mmp_thread_enter}] --=20 You are receiving this mail because: You are the assignee for the bug.=