From owner-freebsd-current@FreeBSD.ORG Sat Oct 6 13:52:39 2007 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 12BD316A418 for ; Sat, 6 Oct 2007 13:52:39 +0000 (UTC) (envelope-from kometen@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.187]) by mx1.freebsd.org (Postfix) with ESMTP id 8524213C4B3 for ; Sat, 6 Oct 2007 13:52:38 +0000 (UTC) (envelope-from kometen@gmail.com) Received: by nf-out-0910.google.com with SMTP id b2so643947nfb for ; Sat, 06 Oct 2007 06:52:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=5YjOiuQKmjGE3IfMCS+jpR+C5yFup6sWxmg+4FIkMg4=; b=iOwFTnK5MqIniV5Ph+RXWixb+e0BV7/IacDIsL3vefvYo5EwL0ihSMy6IfHIlYvm+iBI2gp1A5rmGTRAY04pC2SnVK5xKTknkq1Xc+cm9eIp1kG8m1p/svI0uTCm2+WfQPO7okYNZCfzpD926zlbaiNQQBRDmVF0N+l7Qmp6+Z4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=qL1lh0nRqtenS70RJ9pTxsn28e7CUV0zjQ6bQY9GtRvV4qozMVE5jiHUZTVPtop7os5bdWcmu9T75Rt4w1h56b/ECmncdic6GVD5i3jAMdt0m6fzY2Sa59CwOulOKjRvNB9Vv0fLbpWSGvnXNUIIBtzwUGtUfNiz3+O6GFBhI3k= Received: by 10.78.142.14 with SMTP id p14mr5268927hud.1191678756774; Sat, 06 Oct 2007 06:52:36 -0700 (PDT) Received: by 10.78.146.10 with HTTP; Sat, 6 Oct 2007 06:52:36 -0700 (PDT) Message-ID: Date: Sat, 6 Oct 2007 15:52:36 +0200 From: "Claus Guttesen" To: "Ivan Voras" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20071005000046.GC92272@garage.freebsd.pl> Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: ZFS kmem_map too small. 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: Sat, 06 Oct 2007 13:52:39 -0000 > > What I did was to rsync 200 FreeBSD src trees from one directory to > > another on the same ZFS file system. It worked fine. > > It looks like most problems (including mine I sent you before) are when > rsync (and possibly NFS?) are run over the network. How much kernel > memory does a heavily loaded network stack (multiple parallel > connections & TCP streams) consume? Just for the TCP send & receive > buffers I'd guess at least something like 128K*number_of_connections. In my case I rsync'ed both across the network and locally within one zpool. Both times I got the 'kmem_map too small' error. -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare