From owner-freebsd-virtualization@freebsd.org Tue May 7 12:27:55 2019 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C5ED915849A5 for ; Tue, 7 May 2019 12:27:55 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 47DE58753C for ; Tue, 7 May 2019 12:27:55 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 055FD15849A3; Tue, 7 May 2019 12:27:55 +0000 (UTC) Delivered-To: virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E825F15849A2 for ; Tue, 7 May 2019 12:27:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::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.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 868C88753A for ; Tue, 7 May 2019 12:27:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id BC5D422130 for ; Tue, 7 May 2019 12:27:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x47CRrBm094840 for ; Tue, 7 May 2019 12:27:53 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x47CRrUY094839 for virtualization@FreeBSD.org; Tue, 7 May 2019 12:27:53 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: virtualization@FreeBSD.org Subject: [Bug 231117] bhyve: I/O lockups inside guests Date: Tue, 07 May 2019 12:27:53 +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: 11.2-RELEASE X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: rgrimes@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc keywords 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-virtualization@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 May 2019 12:27:56 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D231117 Rodney W. Grimes changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rgrimes@FreeBSD.org Keywords|performance | --- Comment #21 from Rodney W. Grimes --- (In reply to Mateusz Kwiatkowski from comment #19) > On the new hypervisor there's plenty of free resources. Swap is disabled. >=20 > Mem: 3761M Active, 1636M Inact, 5802M Wired, 51G Free > ARC: 4000M Total, 487M MFU, 3322M MRU, 3456K Anon, 129M Header, 59M Other > 2228M Compressed, 3202M Uncompressed, 1.44:1 Ratio > > vfs.zfs.arc_min: 8215740416 > vfs.zfs.arc_max: 52582796492 How much memory are your VM's using? Ie, what is the total of all the VM's= you have running at any time? How much total memory does the system have? Your arc max is 52Gbytes, 4G is in use now, so it could try to use another = 48G bytes, your system has 51G free under the above conditions so the arc could drive your system to 3G of free memory. I am concerned your host work load my at times drive your system into memory starvation unless these numbers are actually with all the system under load. --=20 You are receiving this mail because: You are the assignee for the bug.=