From owner-freebsd-questions@FreeBSD.ORG Wed Mar 11 13:50:01 2015 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id DE71FFD9 for ; Wed, 11 Mar 2015 13:50:01 +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 96288E20 for ; Wed, 11 Mar 2015 13:50:01 +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 62F0A3CD9F; Wed, 11 Mar 2015 14:49:58 +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 t2BDnwl7004935; Wed, 11 Mar 2015 14:49:58 +0100 (CET) (envelope-from freebsd@edvax.de) Date: Wed, 11 Mar 2015 14:49:58 +0100 From: Polytropon To: opendaddy@hushmail.com Subject: Re: Limiting CPU on some processes on web server Message-Id: <20150311144958.3ef9519d.freebsd@edvax.de> In-Reply-To: <20150311134232.838ABC0451@smtp.hushmail.com> References: <20150311122656.96F2020341@smtp.hushmail.com> <20150311141347.1013d42d.freebsd@edvax.de> <20150311134232.838ABC0451@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 13:50:02 -0000 On Wed, 11 Mar 2015 13:42:32 +0000, opendaddy@hushmail.com wrote: > On 11. mars 2015 at 1:04 PM, "Polytropon" wrote: > > > >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. > > > > Thanks, will give that a go. > > Any idea how it compares to https://github.com/opsengine/cpulimit/ though? The main differnce in functionality is that ulimit -t defines the limit as time, whereas cpulimit defines it as percentage of CPU resources used. Another difference is that ulimit comes with FreeBSD's default scripting shell, whereas cpulimit is a Linux program that has to be compiled from source, after porting it, of course. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...