From owner-freebsd-virtualization@freebsd.org Tue Mar 19 00:49:34 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 CD535152C3F9; Tue, 19 Mar 2019 00:49:34 +0000 (UTC) (envelope-from SRS0=58Nm=RW=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 339C186F97; Tue, 19 Mar 2019 00:49:34 +0000 (UTC) (envelope-from SRS0=58Nm=RW=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (localhost [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id F2F1C28417; Tue, 19 Mar 2019 01:49:22 +0100 (CET) Received: from illbsd.quip.test (ip-86-49-16-209.net.upcbroadband.cz [86.49.16.209]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id D6E1D28416; Tue, 19 Mar 2019 01:49:15 +0100 (CET) Subject: Re: bhyve zfs resizing To: freebsd-virtualization@freebsd.org, FreeBSD References: <20190318150404.GB91631@rpi3.zyxst.net> <20190318152525.GC91631@rpi3.zyxst.net> <20190319002325.GD91631@rpi3.zyxst.net> From: Miroslav Lachman <000.fbsd@quip.cz> Message-ID: <49d8d837-b734-0770-20fd-a439c6436a4d@quip.cz> Date: Tue, 19 Mar 2019 01:49:10 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.3 MIME-Version: 1.0 In-Reply-To: <20190319002325.GD91631@rpi3.zyxst.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 339C186F97 X-Spamd-Bar: ++++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [4.29 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.98)[0.980,0]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[quip.cz]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.96)[0.962,0]; RCVD_COUNT_THREE(0.00)[3]; IP_SCORE(0.19)[ip: (0.48), ipnet: 94.124.104.0/21(0.24), asn: 42000(0.19), country: CZ(0.07)]; MX_GOOD(-0.01)[cached: elsa.codelab.cz]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[4.105.124.94.list.dnswl.org : 127.0.10.0]; NEURAL_SPAM_LONG(0.97)[0.967,0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[000.fbsd@quip.cz,SRS0=58Nm=RW=quip.cz=000.fbsd@elsa.codelab.cz]; RECEIVED_SPAMHAUS_PBL(0.00)[209.16.49.86.zen.spamhaus.org : 127.0.0.11]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:42000, ipnet:94.124.104.0/21, country:CZ]; FROM_NEQ_ENVFROM(0.00)[000.fbsd@quip.cz,SRS0=58Nm=RW=quip.cz=000.fbsd@elsa.codelab.cz]; MID_RHS_MATCH_FROM(0.00)[] 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, 19 Mar 2019 00:49:35 -0000 tech-lists wrote on 2019/03/19 01:23: > Am I correct? In that I should have used UFS in the guest rather than > zfs? Or was it the encryption? As Alan already wrote - you can use ZFS inside of the guest but I would never choose ZFS in zvol backed guest. I prefere UFS. It is faster and does not need so much memory as ZFS does. My VirtualBox and Bhyve guests are small. Sometimes <1GB of RAM. Sometimes 2GB of RAM and that is very small for ZFS. May be you can try to limit ZFS ARC size in /etc/sysctl.conf or in /boot/loader.conf vfs.zfs.arc_max Choose about 1/4 of your guest's RAM size and test it again. Kind regards Miroslav Lachman