From: "Bradley D. LaRonde" <brad@ltc.com>
To: <root@chaos.analogic.com>
Cc: "Thomas Capricelli" <orzel@kde.org>, <linux-kernel@vger.kernel.org>
Subject: Re: Mounting a in-ROM filesystem efficiently
Date: Thu, 13 Dec 2001 13:52:27 -0500 [thread overview]
Message-ID: <080d01c18407$4f741650$5601010a@prefect> (raw)
In-Reply-To: <Pine.LNX.3.95.1011213132109.707A-100000@chaos.analogic.com>
----- Original Message -----
From: "Richard B. Johnson" <root@chaos.analogic.com>
To: "Bradley D. LaRonde" <brad@ltc.com>
Cc: "Thomas Capricelli" <orzel@kde.org>; <linux-kernel@vger.kernel.org>
Sent: Thursday, December 13, 2001 1:34 PM
Subject: Re: Mounting a in-ROM filesystem efficiently
> On Thu, 13 Dec 2001, Bradley D. LaRonde wrote:
> [SNIPPED...]
>
> > Sent: Thursday, December 13, 2001 1:02 PM Subject: Re: Mounting a in-ROM
> > filesystem efficiently
> >
> >
> > > Generally, ROM based stuff is compressed before being written to >
> > NVRAM. It's uncompressed into a RAM-Disk and the RAM-Disk is mounted. >
> > > That way, you can use, say, 2 megabytes of NVRAM to get a 10 to 20 >
> > megabyte root file-system. This also allows /tmp and /var/log to be >
> > writable, which is a great help because the development environment >
> > closely approximates the run-time environment.
> >
> > That's perfect if you have plenty of RAM to spare.
> >
>
> Well RAM is a hell of a lot cheaper than NVRAM. If you don't have
> the required RAM on your box, the hardware engineers screwed up
> and have to be "educated" preferably with an axe in the parking-lot.
As I mentioned before, there may be other-than-cost considerations for
choosing the amount of RAM on a box. For example, low power consumption on
portable devices. For another example, a huge ROM database that doesn't
need to be in RAM all at once.
Regards,
Brad
next prev parent reply other threads:[~2001-12-13 18:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-13 16:02 Mounting a in-ROM filesystem efficiently Thomas Capricelli
2001-12-13 16:22 ` Bradley D. LaRonde
2001-12-13 16:41 ` Thomas Capricelli
2001-12-13 17:10 ` Bradley D. LaRonde
2001-12-13 18:02 ` Richard B. Johnson
2001-12-13 18:14 ` Bradley D. LaRonde
2001-12-13 18:34 ` Richard B. Johnson
2001-12-13 18:52 ` Bradley D. LaRonde [this message]
2001-12-13 19:41 ` Richard B. Johnson
2001-12-13 20:09 ` Bradley D. LaRonde
[not found] ` <08d701c18412/mnt/tmp/sendmee91d2c0601010a@prefect>
2001-12-18 1:27 ` Pavel Machek
2001-12-14 11:03 ` Catalin Marinas
2001-12-13 17:49 ` David Woodhouse
2001-12-13 18:06 ` Bradley D. LaRonde
2001-12-13 20:38 ` H. Peter Anvin
2001-12-13 20:52 ` Bradley D. LaRonde
2001-12-14 9:45 ` David Woodhouse
2001-12-14 15:27 ` Bradley D. LaRonde
2001-12-14 16:51 ` David Woodhouse
2001-12-14 17:02 ` Bradley D. LaRonde
2001-12-14 17:03 ` David Woodhouse
2001-12-14 17:12 ` Bradley D. LaRonde
2001-12-14 17:16 ` David Woodhouse
2001-12-14 17:27 ` Bradley D. LaRonde
2001-12-16 9:51 ` Christoph Rohland
2002-01-23 8:01 ` Eric W. Biederman
[not found] <20011214072540.D7457@duron.intern.kubla.de>
2001-12-17 13:24 ` Richard B. Johnson
2001-12-18 12:10 ` Helge Hafting
2001-12-18 14:00 ` Richard B. Johnson
2001-12-18 14:09 ` Alan Cox
2001-12-18 15:21 ` Mr. James W. Laferriere
2001-12-18 20:56 ` H. Peter Anvin
2001-12-18 16:27 ` Kent Borg
2001-12-18 17:05 ` Herman Oosthuysen
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