From owner-freebsd-current@FreeBSD.ORG Fri Dec 18 17:05:16 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 471DF106566C; Fri, 18 Dec 2009 17:05:16 +0000 (UTC) (envelope-from kraduk@googlemail.com) Received: from mail-fx0-f227.google.com (mail-fx0-f227.google.com [209.85.220.227]) by mx1.freebsd.org (Postfix) with ESMTP id A02538FC13; Fri, 18 Dec 2009 17:05:15 +0000 (UTC) Received: by fxm27 with SMTP id 27so3046310fxm.3 for ; Fri, 18 Dec 2009 09:05:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=y2QC3ouE1ENEBnc5Q0x8F8a45THBPg/Yzp43VaM2FKA=; b=hmOcxez7licM022bxW3md9g7S67idWp3tkKU4lZamPvCyK9kzYboiFb1arkdr+S9Ah Ij+eDlN9hfa4R4EwcKst6QPdTAXbAQVG4qVcFYKrGCQ8UnkI/nFCXyCrW1r1wWsL4wz1 uVNQhSVX8hHR0Dn5iYh+xTluxiJ5AwK6qFH/0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=W7cfu21tA6JlHuQc26XGn3QAx1pWTLvVudLkdNJUkKNexuxwU+fWxaxvhUcS3xuREQ NZbh99W1rHasg9Ao/t4KYH8pBJlE3Ru7IPpOkJ3Q7PXi+xLcFD8vNSoBR3YbLBg310FN Yj0QUFcZu7XoaZskW23pKrDsz2KfIWLv0vmU8= MIME-Version: 1.0 Received: by 10.239.139.154 with SMTP id t26mr459906hbt.74.1261155914278; Fri, 18 Dec 2009 09:05:14 -0800 (PST) In-Reply-To: References: <398F182D4FC14D43A1CFD89C4D69817C@vosz.local> <4B2B52FD.7070206@FreeBSD.org> Date: Fri, 18 Dec 2009 17:05:14 +0000 Message-ID: From: krad To: Alexander Zagrebin Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-current@freebsd.org Subject: Re: ZFS and UFS on the same box. Cache memory allocation issue. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Dec 2009 17:05:16 -0000 2009/12/18 Alexander Zagrebin > > > As result UFS returns memory to "free" pool and ZFS can > > allocate it for ARC. > > > It significantly increases ZFS performance. > > > > > > Is there an another workaround? > > > > do you know about the following ZFS loader tunables: > > > > vfs.zfs.arc_min="400M" > > vfs.zfs.arc_max="500M" > > > > These should be added to /boot/loader.conf (and they can of course be > > adjusted to make your system behave well ...) > > Yes, I do. > vfs.zfs.arc_min would be used at this situation, but it seems that setting > this sysctl doesn't help. > > -- > Alexander Zagrebin > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > Not really a proper fix but what happens if you have something defined as the l2arc device?