From owner-freebsd-emulation Thu Feb 26 04:13:30 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id EAA09626 for freebsd-emulation-outgoing; Thu, 26 Feb 1998 04:13:30 -0800 (PST) (envelope-from owner-freebsd-emulation@FreeBSD.ORG) Received: from hda.hda.com (hda-bicnet.bicnet.net [208.220.66.37]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id EAA09621 for ; Thu, 26 Feb 1998 04:13:26 -0800 (PST) (envelope-from dufault@hda.hda.com) Received: (from dufault@localhost) by hda.hda.com (8.8.5/8.8.5) id EAA27051; Thu, 26 Feb 1998 04:34:45 -0500 (EST) From: Peter Dufault Message-Id: <199802260934.EAA27051@hda.hda.com> Subject: Re: Kudos... In-Reply-To: <199802260859.AAA23309@dingo.cdrom.com> from Mike Smith at "Feb 26, 98 00:59:58 am" To: mike@smith.net.au (Mike Smith) Date: Thu, 26 Feb 1998 04:34:44 -0500 (EST) Cc: scrappy@hub.org, freebsd-emulation@FreeBSD.ORG, dufault@hda.com X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-emulation@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > > > The only thing that I don't know if can be fixed (or even matters), but > > x11amp does generate: > > > > sched_setscheduler: Function not implemented > > > > It doesn't seem to affect performance or how it operates though... > > No; this is (sort of) the Linux equivalent of the FreeBSD rtprio stuff. > x11amp is attempting to change the scheduling algorithm that's applied > to it to improve its chances of keeping up. > > We had some Posix scheduler stuff done, but I think we fumbled the > ball. If Peter Dufault is still around he would be able to answer that > better. > > Peter? I'm half around. I fumbled that ball. There are patches that probably won't apply anymore on freefall. They are too ambitious for the time I have, adding a "level 0" implementation of all new POSIX stuff so that you can test for feature presense and add pieces in via an LKM. I wanted to add everything in one swell foop for consistency. Take a look at the patches and see if you agree I went too far - I think they are in ~ftp/pub/dufault/posix4.tgz. This weekend I'll try to strip out only the scheduler sections and commit that to current. Peter -- Peter Dufault (dufault@hda.com) Realtime development, Machine control, HD Associates, Inc. Safety critical systems, Agency approval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message