From owner-freebsd-questions@FreeBSD.ORG Sat Aug 20 18:45:44 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5B6A810656F9 for ; Sat, 20 Aug 2011 18:45:44 +0000 (UTC) (envelope-from Ggatten@waddell.com) Received: from emlpirnp0.waddell.com (emlpirnp0.waddell.com [67.130.252.22]) by mx1.freebsd.org (Postfix) with ESMTP id 1F1F58FC12 for ; Sat, 20 Aug 2011 18:45:43 +0000 (UTC) Received: from emlpfilt4.waddell.com ([10.1.10.26]) by emlpirnp1.waddell.com with ESMTP; 20 Aug 2011 13:45:43 -0500 Received: from emlpfilt4.waddell.com (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 47EAE578795; Sat, 20 Aug 2011 13:45:43 -0500 (CDT) Received: from WADPHTCAS0.waddell.com (wadphtcas0.waddell.com [192.168.203.229]) by emlpfilt4.waddell.com (Postfix) with ESMTP id 42234578794; Sat, 20 Aug 2011 13:45:43 -0500 (CDT) Received: from WADPMBXV0.waddell.com ([169.254.1.133]) by WADPHTCAS0.waddell.com ([192.168.203.229]) with mapi; Sat, 20 Aug 2011 13:45:43 -0500 From: Gary Gatten To: "'yuri@rawbw.com'" , "'freebsd-questions@freebsd.org'" Date: Sat, 20 Aug 2011 13:45:42 -0500 Thread-Topic: How much memory does ZFS use? Thread-Index: AcxfaJT3DZ7Yd2y5R36cCfU+dTQyUAAAMhcN Message-ID: <14599_1313865943_4E5000D7_14599_64_1_D9B37353831173459FDAA836D3B43499C5218872@WADPMBXV0.waddell.com> In-Reply-To: <4E4FFF23.406@rawbw.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: Subject: Re: How much memory does ZFS use? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Aug 2011 18:45:44 -0000 Zfs isn't a typical daemon/process. That's like saying databased is a memor= y hog cause it needs a lot of ram for caching. Zfs ram requirements will depend on your file system i/o load, types/sizes = of files, types and rates of file system ops, etc. 512MB may be fine, or y= ou may need 4GB for optimum performance. ----- Original Message ----- From: Yuri [mailto:yuri@rawbw.com] Sent: Saturday, August 20, 2011 01:38 PM To: FreeBSD Questions Subject: How much memory does ZFS use? Someone told me that ZFS is a memory hog and it should be avoided as such. Is this true? How can I understand how much memory particular kernel module consumes? In Solaris there is mdb for that, what is an equivalent in FreeBSD? Yuri _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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