From owner-freebsd-questions@freebsd.org Fri Aug 19 10:17:02 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A3FAFBBF720 for ; Fri, 19 Aug 2016 10:17:02 +0000 (UTC) (envelope-from Ephaeton@gmx.net) Received: from mout.gmx.net (mout.gmx.net [212.227.15.18]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 030C61A3D for ; Fri, 19 Aug 2016 10:17:00 +0000 (UTC) (envelope-from Ephaeton@gmx.net) Received: from hephaistos.local ([188.193.147.216]) by mail.gmx.com (mrgmx001) with ESMTPSA (Nemesis) id 0M2L2a-1bHmSk1lGm-00s3Vu for ; Fri, 19 Aug 2016 12:16:58 +0200 Received: by hephaistos.local (Postfix, from userid 1000) id A6480297CDF6; Fri, 19 Aug 2016 12:16:57 +0200 (CEST) Date: Fri, 19 Aug 2016 12:16:57 +0200 From: "Martin S. Weber" To: Steve O'Hara-Smith Cc: freebsd-questions@freebsd.org Subject: Re: How do I limit I/O usage for a user/process? A user broke my system Message-ID: <20160819101657.GB2560@hephaistos.local> Mail-Followup-To: Steve O'Hara-Smith , freebsd-questions@freebsd.org References: <20160819104058.1c60a63fb832fbdc1524207c@sohara.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160819104058.1c60a63fb832fbdc1524207c@sohara.org> User-Agent: Mutt/1.6.1 (2016-04-27) X-Provags-ID: V03:K0:KAfzlKY8OgHi+vpPMBxxGkQ0GXUwR9U3Ewq0DJ6JfKDsUM5L0NH 0kgwrvjwvflEGh7P0NJ9HmxYoq3w703jp8mO8CkKp31PcoRlIOM2BPPphg3h2im2o7Vl5YT OXn/YBcSxhlUE7H4Y5tmNpJl2BZEM7sN8mqOwa14ORFFCxxQQ+bBHONkAyCL+8G1dYXphVY VacEJXGYtEf9K5Wi+pFIQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:ujfYIcvYPFY=:CviQScOqq2Pva7g6xb63/8 nZbSW5VgnC26Q9mVH2r0kn7IWW6BTA2TrmXtOifQn6F/gBrNQA/JUajKD0pjgt5+jPyQ22tNS CWW9GPJ0/G9CR1Tns/kSJgyXO/wXonCxOpnZR9/w4xE6ZKsPFO9rBHbku2Ir6sp7M/AloFw+t FxAn3Fg5r74zT+90Lj927q9tYBB16+toNjhWCB78Jv0EI1Ivjs5Sc1mLBzCIlQRl5X0EDwLrc kjR9LJZLE2AIa9ES/8TXQ56d1So7w23714wGl1/p7CFYlJJziqBnBjqZ54MfrRn5RCRQ537rL +R1psujIgqfaORipjlwRTdCUTbij0+V0MidDvHzq0W95Y0XStioB9WFH5JTexcZmw+emXbjJQ 6ycWPmDxMMwQEbLws5eUOy5bWKGNKIxQtFRbODeKBh/dDm0TDl8Uy6zxMPRqONqExMbsJaYUu jl4ZWYjC8YQdcOQnUK8N4r2vVRpAdDcyiNcRVtP72s/DhIqpmWYF4B2CrhapzQ0ibo+oYTOUQ 8k5pRrg6UsP00oaAgdwgdsi2EIXlAWG11+YcGS+GD5U5IUMkG+WNirDI7cxvP8nFjqlWI4dFb VaN/fjcBAMbr8KGt/yNToj2Kt8PiA8uGXerFsQyou37rgQhruDSuIfL5z6UxM338LSVZeJLFd 7q1D0iHyAYICuEztvcV86C5tNI1kPQxpOOmn/XsJd9kYsRf5OAiHD2hc6njdjCPh2eI2ww84Q 2D98fgfKjxB4LLK+uNtUR2XUaV2J2mnjXG+4ubdqcXyqzVou0Y9FmJ1uJBM= X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Aug 2016 10:17:02 -0000 On 2016-08-19 10:40:58, Steve O'Hara-Smith wrote: (...) > Very likely the problem was due to memory use and you are tight on > memory for your normal load. Which, as I might add, *should* be the normal usage pattern of a box. There's an interesting parallel to the bufferbloat issue here. "throw more memory at it" is not a good replacement for active smart queue management... -M