Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265205AbUAERRa (ORCPT ); Mon, 5 Jan 2004 12:17:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265209AbUAERR3 (ORCPT ); Mon, 5 Jan 2004 12:17:29 -0500 Received: from wblv-238-222.telkomadsl.co.za ([165.165.238.222]:25217 "EHLO gateway.lan") by vger.kernel.org with ESMTP id S265205AbUAERRV (ORCPT ); Mon, 5 Jan 2004 12:17:21 -0500 Subject: Re: xterm scrolling speed - scheduling weirdness in 2.6 ?! From: Martin Schlemmer Reply-To: azarah@nosferatu.za.org To: Soeren Sonnenburg Cc: Mike Fedyk , Willy Tarreau , szonyi calin , Con Kolivas , Mark Hahn , Linux Kernel Mailing Lists , gillb4@telusplanet.net In-Reply-To: <1073294318.3247.80.camel@localhost> References: <1073227359.6075.284.camel@nosferatu.lan> <20040104225827.39142.qmail@web40613.mail.yahoo.com> <20040104233312.GA649@alpha.home.local> <20040104234703.GY1882@matchmail.com> <1073294318.3247.80.camel@localhost> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-/PJKlqgwBWEFuCuK700m" Message-Id: <1073323208.6075.318.camel@nosferatu.lan> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Mon, 05 Jan 2004 19:20:08 +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1508 Lines: 48 --=-/PJKlqgwBWEFuCuK700m Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2004-01-05 at 11:18, Soeren Sonnenburg wrote: > On Mon, 2004-01-05 at 00:47, Mike Fedyk wrote: > > On Mon, Jan 05, 2004 at 12:33:12AM +0100, Willy Tarreau wrote: > > > at a time. I have yet to understand why 'ls|cat' behaves > > > differently, but fortunately it works and it has already saved > > > me some useful time. > >=20 > > cat probably does some buffering for you, and sends the output to xterm= in > > larger blocks. >=20 > yes indeed, judging from the cat source it does chose optimal buffer > size, here 1024 byte... so it reads/writes larger chunks... and jump > scrolling takes place... >=20 I cannot reboot right now, so have wrong kernel for testing, but could anyone see what happens if you start X reniced to +10 or such? Maybe some other numbers? --=20 Martin Schlemmer --=-/PJKlqgwBWEFuCuK700m Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQA/+ZzIqburzKaJYLYRAlblAJ0SlXDbyiUfMAQc64rpy6EmteOq4wCfZBXp UeV/oHMoxjp899rcrsxgdvc= =D+0o -----END PGP SIGNATURE----- --=-/PJKlqgwBWEFuCuK700m-- - 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/