Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 28 Oct 2002 15:50:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 28 Oct 2002 15:50:49 -0500 Received: from mailout09.sul.t-online.com ([194.25.134.84]:35222 "EHLO mailout09.sul.t-online.com") by vger.kernel.org with ESMTP id ; Mon, 28 Oct 2002 15:50:48 -0500 Date: Mon, 28 Oct 2002 21:56:47 +0100 From: Martin Waitz To: Hanna Linder Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] epoll more scalable than poll Message-ID: <20021028205647.GC1402@admingilde.org> Mail-Followup-To: Hanna Linder , linux-kernel@vger.kernel.org References: <53100000.1035832459@w-hlinder> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="JgQwtEuHJzHdouWu" Content-Disposition: inline In-Reply-To: <53100000.1035832459@w-hlinder> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2101 Lines: 60 --JgQwtEuHJzHdouWu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable hi :) On Mon, Oct 28, 2002 at 11:14:19AM -0800, Hanna Linder wrote: > The results of our testing show not only does the system call=20 > interface to epoll perform as well as the /dev interface but also that ep= oll=20 > is many times better than standard poll. No other implementations of poll= =20 > have performed as well as epoll in any measure. Testing details and resul= ts=20 > are published here, please take a minute to check it out: http://lse.sour= ceforge.net/epoll/index.html how does this compare to the kqueue mechanism found in {Free,Net}BSD? (see http://people.freebsd.org/~jlemon/papers/kqueue.pdf) i especially like their combined event update/event wait, needing only one syscall per poll while building a changelist in userspace... a replacement for poll/select is _really_ needed. but i think we should use existing interfaces if possible, to reduce the changes needed in userspace. --=20 CU, / Friedrich-Alexander University Erlangen, Germany Martin Waitz // [Tali on IRCnet] [tali.home.pages.de] _________ ______________/// - - - - - - - - - - - - - - - - - - - - /// dies ist eine manuell generierte mail, sie beinhaltet // tippfehler und ist auch ohne grossbuchstaben gueltig. / - Wer bereit ist, grundlegende Freiheiten aufzugeben, um sich=20 kurzfristige Sicherheit zu verschaffen, der hat weder Freiheit=20 noch Sicherheit verdient. Benjamin Franklin (1706 - 1790) --JgQwtEuHJzHdouWu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE9vaSOj/Eaxd/oD7IRAqWFAJ9f+uJrbT9gZ5/DicWtOnIHUpQe7wCfdzPw USjx5AbCT+oQ7V8wAMbX69E= =JM/6 -----END PGP SIGNATURE----- --JgQwtEuHJzHdouWu-- - 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/