Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 2 Apr 2001 23:04:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 2 Apr 2001 23:04:46 -0400 Received: from sgi.SGI.COM ([192.48.153.1]:23640 "EHLO sgi.com") by vger.kernel.org with ESMTP id ; Mon, 2 Apr 2001 23:04:34 -0400 Message-ID: <3AC93D2A.760CE67F@sgi.com> Date: Mon, 02 Apr 2001 20:02:02 -0700 From: LA Walsh X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.2 i686) X-Accept-Language: en, en-US, en-GB, fr MIME-Version: 1.0 To: Quim K Holland CC: linux-kernel@vger.kernel.org Subject: Re: [QUESTION] 2.4.x nice level In-Reply-To: <200104022304.QAA19333@mail6.bigmailbox.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Quim K Holland wrote: > > >>>>> "BS" == BERECZ Szabolcs writes: > > BS> ... a setiathome running at nice level 19, and a bladeenc at > BS> nice level 0. setiathome uses 14 percent, and bladeenc uses > BS> 84 percent of the processor. I think, setiathome should use > BS> max 2-3 percent. the 14 percent is way too much for me. > BS> ... > BS> with kernel 2.2.16 it worked for me. > BS> now I use 2.4.2-ac20 --- I was running 2 copies of setiathome on a 4 CPU server @ work. The two processes ran nice'd -19. The builds we were running still took 20-30% longer as opposed to when setiathome wasn't running (went from 45 minutes up to about an hour). This machine has 1G, so I don't think it was hurting from swapping. I finally wrote a script that checked every 30 seconds -- if the load on the machine climbed over '4', the script would SIGSTOP the seti jobs. Once the load on the machine fell below 2, it would send a SIGCONT to them. I was also running setiathome on my laptop for a short while -- but the fan kept coming on and the computer would get really hot. So I stopped that. Linux @ idle doesn't seem to ever kick on the fan, but turn on a CPU cruching program and it sure seemed to heat up the machine. I still wonder how many kilo or mega watts go to running dispersed computation programs. Just one of those things I may never know.... -l -- The above thoughts and | They may have nothing to do with writings are my own. | the opinions of my employer. :-) L A Walsh | Trust Technology, Core Linux, SGI law@sgi.com | Voice: (650) 933-5338 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/