From owner-freebsd-current Sat May 27 20:55:43 2000 Delivered-To: freebsd-current@freebsd.org Received: from fep8.mail.ozemail.net (fep8.mail.ozemail.net [203.2.192.102]) by hub.freebsd.org (Postfix) with ESMTP id 8D0D337BAB1 for ; Sat, 27 May 2000 20:55:32 -0700 (PDT) (envelope-from obituary@ozemail.com.au) Received: from carcass.au.hartware.com (slnew51p62.ozemail.com.au [203.108.150.78]) by fep8.mail.ozemail.net (8.9.0/8.6.12) with ESMTP id NAA11283; Sun, 28 May 2000 13:55:26 +1000 (EST) Received: (from obituary@localhost) by carcass.au.hartware.com (8.9.3/8.9.3) id NAA00288; Sun, 28 May 2000 13:53:31 +1000 (EST) (envelope-from obituary) Date: Sun, 28 May 2000 13:53:31 +1000 From: "Jacob A. Hart" To: Doug Barton Cc: Sheldon Hearn , FreeBSD-CURRENT Subject: Re: Scheduler changes? Message-ID: <20000528135331.A241@carcass.au.hartware.com> References: <20000526131949.A9232@carcass.au.hartware.com> <74533.959349665@axl.ops.uunet.co.za> <20000527173624.A207@carcass.au.hartware.com> <3930243C.CBAA911E@gorean.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OgqxwSJOaUobr8KG" X-Mailer: Mutt 1.0.1i In-Reply-To: <3930243C.CBAA911E@gorean.org>; from DougB@gorean.org on Sat, May 27, 2000 at 12:38:36PM -0700 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG --OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable On Sat, May 27, 2000 at 12:38:36PM -0700, Doug Barton wrote: > > Try setting the nice value for rc5 to something lower than 20, but > higher than the highest (lowest) value running on your system. There was > a bug with the scheduler in the past that items run at nice 20 were > actually getting more cpu than they were supposed to. I remember the scheduler bug you're talking about. My system feels much the same as it did during 4.0-CURRENT when that bug was active. I had a collection of wrapper scripts for CPU intensive programs that suspended rc5des, ran the program, then reenabled it again. Should have held on to them, I guess. > If this change > fixes things for you, please report it asap, since my understanding is > that this problem is rather elusive and annoying. No, it didn't work, unfortunately. To test it, I renice'd rc5des to a couple of different values while encoding an MP3. When niced at: +10 rc5des chewed ~40-45% CPU +15 rc5des chewed ~35-40% CPU +20 rc5des chewed ~25-30% CPU If there's any other information I can provide, just let me know. -jake --=20 Jacob A. Hart Powered by: FreeBSD 5.0-CURRENT #9: Fri May 26 07:39:27 EST 2000 I believe the technical term is "Oops!" --OgqxwSJOaUobr8KG Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use MessageID: iYawZ6LMWo1MKhgLWQdvnIE0YZi8QMdJ iQA/AwUBOTCYOn1KIGEEZDODEQJehQCfWNYNQwXfZXqS10LL21fP1deSB2kAoKiu yzXB2e7zSLFcrJ7hYTnVmimM =DGDr -----END PGP SIGNATURE----- --OgqxwSJOaUobr8KG-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message