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From: bhoughto@cmdnfs.intel.com (Blair P. Houghton)
Newsgroups: comp.unix.questions
Subject: Re: Page of memory
Message-ID: <1558@inews.intel.com>
Date: 2 Jan 91 18:44:22 GMT
References: <701.278211E0@ohiont.fidonet.org>
Sender: news@inews.intel.com
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In article <701.278211E0@ohiont.fidonet.org> Richard.Banks@p0.f512.n157.z1.fidonet.org (Richard Banks) writes:
>How much is a page of memory ?

It's implementation-defined.

It's also generally not the same for both the primary and secondary
storage (RAM and disks, respectively, though for a disk it's called
a "block" rather than a "page"), and sometimes there's a third one
defined specifically as the I/O blocksize...

Sometimes it's not even constant wrt time (that's for you
hardware-simulation-accelerator fans out there :-).

On a VAX running Ultrix, it's defined in /usr/{sys,include}/vax/param.h
as NBPG, usually 512.  On Encore Multimax machines running Umax, it's 2048;
and I don't remember where to find it.

				--Blair
				  "Oh, about two cents worth..."