From owner-freebsd-virtualization@freebsd.org Wed Mar 20 23:30:13 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 D9CFB153E6CB for ; Wed, 20 Mar 2019 23:30:13 +0000 (UTC) (envelope-from hausen@punkt.de) Received: from kagate.punkt.de (kagate.punkt.de [217.29.33.131]) (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 5C01086739 for ; Wed, 20 Mar 2019 23:30:12 +0000 (UTC) (envelope-from hausen@punkt.de) Received: from hugo10.ka.punkt.de (hugo10.ka.punkt.de [217.29.44.10]) by gate2.intern.punkt.de with ESMTP id x2KNUAMP042638; Thu, 21 Mar 2019 00:30:10 +0100 (CET) Received: from [217.29.46.66] (unassigned [217.29.46.66] (may be forged)) by hugo10.ka.punkt.de (8.14.2/8.14.2) with ESMTP id x2KNUA9p063833; Thu, 21 Mar 2019 00:30:10 +0100 (CET) (envelope-from hausen@punkt.de) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\)) Subject: Re: bhyve and vfs.zfs.arc_max, and zfs tuning for a hypervisor From: "Patrick M. Hausen" In-Reply-To: <20190320015236.GA35511@admin.sibptus.ru> Date: Thu, 21 Mar 2019 00:30:09 +0100 Cc: freebsd-virtualization@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <0520BA4F-FA4A-4BE9-85D9-2CECF2018282@punkt.de> References: <20190319024638.GA8193@admin.sibptus.ru> <20190320015236.GA35511@admin.sibptus.ru> To: Victor Sudakov X-Mailer: Apple Mail (2.3445.102.3) X-Rspamd-Queue-Id: 5C01086739 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.99 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.99)[-0.989,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] 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: Wed, 20 Mar 2019 23:30:14 -0000 Hi! > Am 20.03.2019 um 02:52 schrieb Victor Sudakov : > Is SLOG also used by zfs volumes? Yes, but for synchronous writes only, if I=E2=80=99m not mistaken. So fundamentally yes, but in most cases no. Patrick --=20 punkt.de GmbH Internet - Dienstleistungen - Beratung Kaiserallee 13a Tel.: 0721 9109-0 Fax: -100 76133 Karlsruhe info@punkt.de http://punkt.de AG Mannheim 108285 Gf: Juergen Egeling