From owner-freebsd-fs@FreeBSD.ORG Thu Apr 9 11:11:31 2015 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 53BF57B2 for ; Thu, 9 Apr 2015 11:11:31 +0000 (UTC) Received: from mail-ig0-x22e.google.com (mail-ig0-x22e.google.com [IPv6:2607:f8b0:4001:c05::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1A24F619 for ; Thu, 9 Apr 2015 11:11:31 +0000 (UTC) Received: by igbqf9 with SMTP id qf9so61549365igb.1 for ; Thu, 09 Apr 2015 04:11:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=HInW3rdaBXM+I/hCRwbdpj1Nv8iMWcl2BcdLmXF1BR4=; b=IuwnRPSlYR/9ijWf4riVmXNTmwsd9sOFqH41BMyb0y/o9xXy7I8TVozmHdsXnY2/A1 ZZqJ36fhpHn69cv7cFsAdsrz6kaDLPJRzdmeiG9SuY6uoo3i4ONE+z3SObBhhtGoTBEO 0/uiEr6/8BGHlme7oocgkfDX12cx1prv130V8XjrulydcOJJuVAtQpSDZpYYcNaGDj3T ZQRkMA5CTSQfKzNLsD4cHRB6/Uok8ZZ2DYcL0j4KiNavAHV+yWOXxniKB/x9Jn7mNZYn a+lCC88PgRJFRHPRDbYoinqMOb8GDbNepAozRJGmOUcS3C1bKWUTc76qx0QV2Y3RTsBR qQWA== X-Received: by 10.50.109.228 with SMTP id hv4mr19313734igb.45.1428577890565; Thu, 09 Apr 2015 04:11:30 -0700 (PDT) MIME-Version: 1.0 Received: by 10.64.63.18 with HTTP; Thu, 9 Apr 2015 04:11:00 -0700 (PDT) In-Reply-To: References: From: Matthias Gamsjager Date: Thu, 9 Apr 2015 13:11:00 +0200 Message-ID: Subject: Re: FreeBSD/ZFS on [HEAD] chews up memory To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Apr 2015 11:11:31 -0000 When you decided to use ZFS did you read up on the design of it? Most of the RAM goes to ARC which caches all the read files for you. Beside that you can tame the ARC with parameters and FreeBSD should shrink the ARC when more memory is needed.