From owner-freebsd-questions@FreeBSD.ORG Sat Dec 6 12:27:21 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 54FFE1065670 for ; Sat, 6 Dec 2008 12:27:21 +0000 (UTC) (envelope-from danielby@slightlystrange.org) Received: from mtaout03-winn.ispmail.ntl.com (mtaout03-winn.ispmail.ntl.com [81.103.221.49]) by mx1.freebsd.org (Postfix) with ESMTP id D21BE8FC17 for ; Sat, 6 Dec 2008 12:27:20 +0000 (UTC) (envelope-from danielby@slightlystrange.org) Received: from aamtaout01-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout03-winn.ispmail.ntl.com (InterMail vM.7.08.04.00 201-2186-134-20080326) with ESMTP id <20081206122715.EJDW1691.mtaout03-winn.ispmail.ntl.com@aamtaout01-winn.ispmail.ntl.com> for ; Sat, 6 Dec 2008 12:27:15 +0000 Received: from catflap.slightlystrange.org ([82.21.101.171]) by aamtaout01-winn.ispmail.ntl.com (InterMail vG.2.02.00.01 201-2161-120-102-20060912) with ESMTP id <20081206122715.RAKA19264.aamtaout01-winn.ispmail.ntl.com@catflap.slightlystrange.org> for ; Sat, 6 Dec 2008 12:27:15 +0000 Received: by catflap.slightlystrange.org (Postfix, from userid 106) id C8AA36167; Sat, 6 Dec 2008 12:27:12 +0000 (GMT) Received: from torus.slightlystrange.org (torus.slightlystrange.org [10.1.3.50]) by catflap.slightlystrange.org (Postfix) with SMTP id 447496132 for ; Sat, 6 Dec 2008 12:27:12 +0000 (GMT) Received: by torus.slightlystrange.org (sSMTP sendmail emulation); Sat, 6 Dec 2008 12:27:12 +0000 From: "Daniel Bye" Date: Sat, 6 Dec 2008 12:27:12 +0000 To: freebsd-questions@freebsd.org Message-ID: <20081206122711.GF19575@torus.slightlystrange.org> Mail-Followup-To: freebsd-questions@freebsd.org References: <4939F044.8090507@rawbw.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="5UGlQXeG3ziZS81+" Content-Disposition: inline In-Reply-To: <4939F044.8090507@rawbw.com> User-Agent: Mutt/1.4.2.3i X-PGP-Fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A X-Operating-System: FreeBSD 7.1-PRERELEASE i386 X-Cloudmark-Analysis: v=1.0 c=1 a=E_TWu-usHesA:10 a=llfY_82hizsA:10 a=ehNlctqhnw0A:10 a=Gos-__BFWqthIbcd1LkA:9 a=R38mLBzDA7EtAofuNHMA:7 a=_1MKklsrd23r5MGiFGaoCv9PKo4A:4 a=LY0hPdMaydYA:10 a=5bEAyOOqqaH3KJrTn5YA:9 a=uaYvIZoL7_fykM_aWEEktecN6G0A:4 a=rPt6xJ-oxjAA:10 Subject: Re: "Sticky" mouse pointer on machine with high load X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Daniel Bye List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Dec 2008 12:27:21 -0000 --5UGlQXeG3ziZS81+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Dec 05, 2008 at 07:23:48PM -0800, Yuri wrote: > Often when my machine has load is 2 or higher it becomes very visible=20 > that mouse motion isn't smooth. Mouse moves in a series of quite long jum= ps. > I believe this effect is especially pronounced when some applications=20 > read/write a lot of files. >=20 > My understanding is that this is because signal from mouse gets stuck in= =20 > the fifo somewhere and not processed by x-server in time. >=20 > Is there any solution to this problem? Not guaranteed, but it has worked for several people in the past - try rebuilding your kernel with the SCHED_ULE scheduler, instead of the SCHED_BSD4 scheduler. Although ostensibly its benefits are more obvious on multi-processor machines, it does often seem to fix this mouse lag issue that comes up from time to time. It has been discussed on the list several times, so you might find some interesting further reading if you search the archives. Dan --=20 Daniel Bye _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ --5UGlQXeG3ziZS81+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkk6b58ACgkQixf5fBYiFmoNSgCfaTYxMPpYb96W5pDyDmnCxMPd smwAn1D6SYenVCH3E8zDPPhqf4/Djhiw =3ezZ -----END PGP SIGNATURE----- --5UGlQXeG3ziZS81+--