From owner-freebsd-hackers Thu Dec 7 03:48:54 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id DAA04760 for hackers-outgoing; Thu, 7 Dec 1995 03:48:54 -0800 (PST) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.20.4]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id DAA04755 for ; Thu, 7 Dec 1995 03:48:53 -0800 (PST) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id FAA10177; Thu, 7 Dec 1995 05:46:11 -0600 From: Joe Greco Message-Id: <199512071146.FAA10177@brasil.moneng.mei.com> Subject: Re: User space PPP & leased line To: turetta@trust.stylo.it (Angelo Turetta) Date: Thu, 7 Dec 1995 05:46:10 -0600 (CST) Cc: freebsd-hackers@freebsd.org In-Reply-To: <30C378D2@trust.stylo.it> from "Angelo Turetta" at Dec 4, 95 11:42:00 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@freebsd.org Precedence: bulk > BTW, is there any {performance|machine load|memory usage} gain using one or > the other of the two ppp daemons ? The kernel mode PPP should conceptually be more efficient and robust because it is built into the kernel. It does not have the same problems of context switching, using memory per process, etc. etc... However, the user mode PPP is easier to debug and hack on. It has some rather severe bugs for any site that wants to run more than just a few, but these are known quantities and tend to be easier to fix than kernel bugs. :-) ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/342-4847