From owner-freebsd-bugs@freebsd.org Thu Dec 5 16:23:59 2019 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 B35BC1CD72D for ; Thu, 5 Dec 2019 16:23:59 +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 47TLdC4Plrz4NZ7 for ; Thu, 5 Dec 2019 16:23:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 974001CD72C; Thu, 5 Dec 2019 16:23:59 +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 96EB41CD72B for ; Thu, 5 Dec 2019 16:23:59 +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) server-signature RSA-PSS (4096 bits) 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 47TLdC3Xb5z4NZ5 for ; Thu, 5 Dec 2019 16:23:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5E5C61B9E4 for ; Thu, 5 Dec 2019 16:23:59 +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 xB5GNx4N043604 for ; Thu, 5 Dec 2019 16:23:59 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id xB5GNxZD043602 for bugs@FreeBSD.org; Thu, 5 Dec 2019 16:23:59 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 242427] zfsshutdown -> zfs_fini -> kmem_cache_destroy(zio_*_buf) is very slow causing 10+ minutes long reboots Date: Thu, 05 Dec 2019 16:23:58 +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: 11.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: pen@lysator.liu.se 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 MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Dec 2019 16:23:59 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242427 --- Comment #7 from Peter Eriksson --- > keg_free_slab: keg->uk_freef(mem) {page_free} took 2190 =C2=B5s > keg_drain: while()-keg_free_slab-loop took 163 s (163765748 =C2=B5s)= [240297 loops, 4 slow, avg=3D681 =C2=B5s, min=3D246 =C2=B5s, max=3D7922 = =C2=B5s] Just a FYI: The "max" value should probably be subtracted with ~6000=C2=B5s - calling p= rintf() with a line of text seems to take about that time - so if I run the same te= st without printing anything in keg_free_slab() the max is around 2000=C2=B5s = instead. --=20 You are receiving this mail because: You are the assignee for the bug.=