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From: mjs@sfmag.UUCP (M.J.Shannon)
Newsgroups: net.unix-wizards
Subject: Re: how big is a pipe?
Message-ID: <739@sfmag.UUCP>
Date: Fri, 18-Oct-85 23:06:45 EDT
Article-I.D.: sfmag.739
Posted: Fri Oct 18 23:06:45 1985
Date-Received: Sun, 20-Oct-85 03:59:54 EDT
References: <1666@brl-tgr.ARPA> <206@neology.OZ> <1298@poseidon.UUCP>
Organization: AT&T Information Systems, Summit, NJ
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> According to the 3b2 admin guide you must allow 1076 bytes
> per buffer in the buffer pool.  I imagine that this is
> 1024 bytes of data + overhead.
> -- 
> Made in New Zealand -->		Brent Callaghan

The overhead is not part of the buffer data area, it is "sizeof (struct buf)",
the data structure the kernel uses to manage bufers and queues of same.  The
reference to the additional storage is to used in considering the cost in
kernel data space of each buffer.
-- 
	Marty Shannon
UUCP:	ihnp4!attunix!mjs
Phone:	+1 (201) 522 6063
Disclaimer: I speak for no one.