From owner-freebsd-questions@FreeBSD.ORG Wed Mar 11 13:13:57 2015 Return-Path: Delivered-To: freebsd-questions@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 D5EE2414 for ; Wed, 11 Mar 2015 13:13:57 +0000 (UTC) Received: from mx01.qsc.de (mx01.qsc.de [213.148.129.14]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 953F1A4D for ; Wed, 11 Mar 2015 13:13:57 +0000 (UTC) Received: from r56.edvax.de (port-92-195-131-196.dynamic.qsc.de [92.195.131.196]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx01.qsc.de (Postfix) with ESMTPS id 765243CEBA; Wed, 11 Mar 2015 14:13:48 +0100 (CET) Received: from r56.edvax.de (localhost [127.0.0.1]) by r56.edvax.de (8.14.5/8.14.5) with SMTP id t2BDDlZm004376; Wed, 11 Mar 2015 14:13:47 +0100 (CET) (envelope-from freebsd@edvax.de) Date: Wed, 11 Mar 2015 14:13:47 +0100 From: Polytropon To: opendaddy@hushmail.com Subject: Re: Limiting CPU on some processes on web server Message-Id: <20150311141347.1013d42d.freebsd@edvax.de> In-Reply-To: <20150311122656.96F2020341@smtp.hushmail.com> References: <20150311122656.96F2020341@smtp.hushmail.com> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Mar 2015 13:13:57 -0000 On Wed, 11 Mar 2015 12:26:56 +0000, opendaddy@hushmail.com wrote: > Hi! > > I run this web app that depends on ImageMagick to process images and ffmpeg to process videos. These processes, unfortunately, consume 100% of my CPU, rendering my web app unusable (gateway timeout). > > Tried `nice -n 19` but to no avail. > > What other options do I have? You can try ulimit. See "man sh" for ulimit parameters, for example: -t time The maximal amount of CPU time to be used by each process, in seconds. There are other restrictions you can apply, like memory locking or simultaneous processes. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...