Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 27 Jun 2002 16:21:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 27 Jun 2002 16:21:17 -0400 Received: from ns.escriba.com.br ([200.250.187.130]:51955 "EHLO alexnunes.lab.escriba.com.br") by vger.kernel.org with ESMTP id ; Thu, 27 Jun 2002 16:21:16 -0400 Message-ID: <3D1B7440.3040605@PolesApart.wox.org> Date: Thu, 27 Jun 2002 17:23:28 -0300 From: "Alexandre P. Nunes" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1a) Gecko/20020610 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.4.19-rc1 + O(1) scheduler References: <20020626204721.GK22961@holomorphy.com> <1025125214.1911.40.camel@localhost.localdomain> <1025128477.1144.3.camel@icbm> <20020627005431.GM22961@holomorphy.com> <1025192465.1084.3.camel@icbm> <20020627154712.GO22961@holomorphy.com> <3D1B5982.60008@PolesApart.dhs.org> <1025202738.1084.12.camel@icbm> <3D1B5F1D.2000706@PolesApart.wox.org> <3D1B7005.2090200@tmsusa.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1288 Lines: 35 > That would be nice... but no - > > both -aa and -ac have it though, and it seems > solid, so maybe there's hope for 2.4 mainline > getting it eventually. > > Joe > > It seems that the version of O(1) scheduler on 2.4.19-pre10-ac2 is not perfect (see below), but I asked because it gave me overall performance gains, specially in multithreading programs (and now I'm going to try with ngpt 2.00). At least that is the first impression, I'm trying it for a few days. I said "not perfect" because a rather non-important benchmarking called quake 3 seens a lot worse in pre10-ac2 with preemptive patches when compared against -pre10 with preemptive patches: sound and screen popped sometimes, like if there was a background task borrowing some cpu, which was not the case, I mean, no other background tasks compared with testing against -pre10. That was the only exception to the above paragraph that I can remember of. Anyway, that "benchmarking tool" isn't rather serious and I'm no benchmarking expert :-) Thank you, Alexandre - 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/