lkml.org 
[lkml]   [2005]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: dmesg verbosity [was Re: AGP bogosities]
On Wed, Mar 23, 2005 at 05:49:47PM +0100, Giuseppe Bilotta wrote:
> > > What are the cons of using "all of" the RAM at boot time to
> > > cache the boot disk?
>
> Dave Jones wrote:
> > It's memory that's otherwise unused. Once you start using the system
> > anything cached will get reclaimed as its needed.
>
> So there is no substantial loss? IOW, it would suffice to have
> all the "loaded at boot" stuff in the first <amount of RAM>
> bytes of the hard disk?

It very likely also needs to be contiguous on-disk (Ie, no in-file
fragmentation). You want to limit the amount of seeking that gets
done so the drive readahead just performs continuous reads.

Dave

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-04-06 13:30    [W:0.121 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site