Subject: Re: status of PPP compression?
To: None <current-users@NetBSD.ORG>
From: Mike Long <>
List: current-users
Date: 04/09/1996 11:16:23
>Date: Mon, 8 Apr 1996 15:58:44 +0100 (BST)
>From: Iain Hibbert <>
>On Fri, 5 Apr 1996, Mike Long wrote:
>> 	options PPP_COMPRESS
>actually, that should be PPP_BSDCOMP

Yeah, bit rot in my head.  Oops.

>> PPP (non-VJ) compression is optional because it bloats the kernel by
>> ~35K.
>  I just looked at this because I was putting it in my kernel config file
>(might as well try it out, eh :) and wanted a meaningful comment there too.
>It seems to me that the only things that defining these options would do is
>to control whether or not the compressions were known about (in
>net/if_ppp.c), not reduce kernel bloat at all.. 

Inclusion of the compression code (zlib.c) is controlled by
/sys/conf/files.  The ~35K I mentioned earlier is the size of zlib.o.
Mike Long <>     <URL:>
VLSI Design Engineer         finger for PGP public key
Analog Devices, CPD Division          CCBF225E7D3F7ECB2C8F7ABB15D9BE7B
Norwood, MA 02062 USA       (eq (opinion 'ADI) (opinion 'mike)) -> nil