From owner-freebsd-current@FreeBSD.ORG  Sat Jul 19 22:48:42 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id DA3B337B401
	for <freebsd-current@freebsd.org>;
	Sat, 19 Jul 2003 22:48:42 -0700 (PDT)
Received: from smtp100.mail.sc5.yahoo.com (smtp100.mail.sc5.yahoo.com
	[216.136.174.138])
	by mx1.FreeBSD.org (Postfix) with SMTP id 6D6B843F3F
	for <freebsd-current@freebsd.org>;
	Sat, 19 Jul 2003 22:48:42 -0700 (PDT)
	(envelope-from khairil_yusof@yahoo.com)
Received: from unknown (HELO ?219.95.57.208?) (khairil?yusof@219.95.57.208
	with plain)
	by smtp.mail.vip.sc5.yahoo.com with SMTP; 20 Jul 2003 05:48:41 -0000
From: Khairil Yusof <khairil_yusof@yahoo.com>
To: freebsd-current@freebsd.org
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="=-H5iL71ppPb7DALfrWR3Z"
Message-Id: <1058680118.729.76.camel@daemon.home.net>
Mime-Version: 1.0
X-Mailer: Ximian Evolution 1.4.3 
Date: 20 Jul 2003 13:48:39 +0800
Subject: background processes stuck in locks with ULE
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 20 Jul 2003 05:48:43 -0000


--=-H5iL71ppPb7DALfrWR3Z
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable

Trying out ULE scheduling on an SMP machine causes background processes
to be stuck in locks.

One or two processes will always get stuck in *Giant (and takes up like
60% of lock) and if these are killed, then other processes are always
taking up a total of around 10% in lock, which makes the system crawl.

Anybody else seeing this on an SMP machine with ULE scheduler?
=20
--
"Optimized, readable, on time; Pick any two."=20

FreeBSD 5.1-CURRENT i386=20
1:08PM up 40 mins, 2 users, load averages: 1.53, 1.62, 1.33

--=-H5iL71ppPb7DALfrWR3Z
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: This is a digitally signed message part

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (FreeBSD)

iD8DBQA/Gi02DAqnLW/+/X8RApTxAKD2s8pljKHi+XOCasxs2XMrsfrg/ACgp9wh
HD1KB9t6FAmzoyxkS4A9V44=
=B7sV
-----END PGP SIGNATURE-----

--=-H5iL71ppPb7DALfrWR3Z--