From owner-freebsd-virtualization@freebsd.org Sun Apr 21 19:13:13 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 12A8C15822B5 for ; Sun, 21 Apr 2019 19:13:13 +0000 (UTC) (envelope-from dmarquess@gmail.com) Received: from mail-oi1-x231.google.com (mail-oi1-x231.google.com [IPv6:2607:f8b0:4864:20::231]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F26678660D for ; Sun, 21 Apr 2019 19:13:11 +0000 (UTC) (envelope-from dmarquess@gmail.com) Received: by mail-oi1-x231.google.com with SMTP id w139so7140910oie.9 for ; Sun, 21 Apr 2019 12:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:message-id:in-reply-to:references:subject:mime-version; bh=H6i2GVSODaOl1JQ1LGHsrk0+DMZu8tZLsN9BdnBPpFk=; b=Qd6gfORawVMR5OUnRIqVwij7MxmTN3kie9tbZKxkeCsvm+ELzd9wVQeUiir4sSMen5 AfGQqMr/eHChmfu09APvGXIUgXEUnEBAzIfX7pYNiuDCWu6ua5kx/l7W+FQsPW9ikjy9 GNIJb2LdwEB6pkz8Ra5eJZObuIloM5GQeLtNzNrPmliDRGLF6uDaPqd/gz+mY6KfGVWC uQKexrr+qZissoBEcIjfLlgWXsxs9YXEMm/iI+3b28oOxWcWkAsTpV2YIIie/Nh/Me2J RW2kOqFZXPsN/QNzW3C5LSDbLAsQSjgUQctrG44tT92VjVs5loYNc3bGX1nvHBjJd8hN 6A7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :subject:mime-version; bh=H6i2GVSODaOl1JQ1LGHsrk0+DMZu8tZLsN9BdnBPpFk=; b=oF8U9Z4N2ZyfJxCZD8H+AYV2W/Vl/6/LRmTuUfMaJL+PV59HMWIXvhZ+epQNQtNRwa AlhQo+/80hNckY0sYWF207k8cbioncALcmTP2zIFMk/mEISSM4no/shxrMcmDhZAlQKy fJWQRn+YUi7eYUWiJlQ+ZUAYfCW5SCA/eatchHDq/IqNI5kw9qVGdDCUfA1QkWnHX1jK OTO8KPAwFQpZ2t/Y6PqU5n1aHiSCPnUAGquvzkxav/zllgSuZWG+SItnJSYa0VhnfkWx 6WxwqtSGYI7bpO8RTlE2sC5c0vlx5VKEXhG/7WpPG+qLRUO406LG9xfBNsJqWt6Tf5i8 UIwA== X-Gm-Message-State: APjAAAWpcnfC6pywcPOUG3jI/BbhmshFTPnDkzwvDVpSiNiEFGn36fxL Zoy65mxkJ7WBE6Te8Qh6jFbOCBDj X-Google-Smtp-Source: APXvYqxcUjpSxTRVt6npPR/bE7gy//vO7gUi1RmTJ8vqQBh3ql69D/wwIjm8AsRy9x8q1N2Vw9NMTw== X-Received: by 2002:aca:4dd1:: with SMTP id a200mr8649136oib.142.1555873990553; Sun, 21 Apr 2019 12:13:10 -0700 (PDT) Received: from [2600:100c:b21f:6f83:98ea:cb79:100::] ([2600:100c:b21f:6f83:9c2a:a15d:d75:2ae]) by smtp.gmail.com with ESMTPSA id m21sm4781994otj.48.2019.04.21.12.13.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 21 Apr 2019 12:13:09 -0700 (PDT) Date: Sun, 21 Apr 2019 14:12:26 -0500 From: Dustin Marquess To: FreeBSD virtualization mailing list , "Bjoern A. Zeeb" Message-ID: <7adb331c-7563-4d8d-a6bc-e616c6ff4299@Spark> In-Reply-To: <21E25588-ADC0-4101-B122-5782D9A94AC4@lists.zabbadoz.net> References: <21E25588-ADC0-4101-B122-5782D9A94AC4@lists.zabbadoz.net> Subject: Re: bhyve, sparse disk image and trim support? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Apr 2019 19:13:13 -0000 Using a sparse zvol and either the ahci-hd or nvme drivers should support= TRIM. -Dustin On Apr 21, 2019, 12:02 PM -0500, Bjoern A. Zeeb , wrote: > Hi, > > I have been wondering about this with other (commercial) virtualisation= > solutions in the past. If running on a =E2=80=9Cdisk image=E2=80=9D ide= ally I=E2=80=99d > love that image to be a sparse file and ideally I=E2=80=99d love for > bhyve/underlying virtualisation for the disk to understand TRIM so in > case one deletes huge junks inside the VM the disk image can actually > shrink again. > > Examples might be: you do a buildworld or an OS update in the guest and= > then want to delete the obj tree or temporary files after that. Now the= > disk image on the host has been bloated up, and could massively shrink > again saving space on the host. > > Do we support this=3F Has anyone worked on this=3F How do people deal w= ith > these problems=3F > > > /bz > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F > freebsd-virtualization=40freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to =22freebsd-virtualization-unsubscribe=40= freebsd.org=22