Speeding up live cd boot through optimizing file layout

Matt Zimmerman mdz at ubuntu.com
Tue May 30 12:57:24 BST 2006


On Tue, May 30, 2006 at 11:22:37AM +0200, Krzysztof Lichota wrote:
> Matt Zimmerman napisał(a):
> > The above was written in response to a proposal to move the single most
> > frequently accessed file to the edge of the disk; what you are describing is
> > something quite different: grouping the files read at boot in one place on
> > the disc.
> > 
> > This, in fact, has a reasonable chance of improving performance, since all
> > of these files are read in a single pass by /etc/init.d/readahead.
> 
> Interesting. I will try moving these files to the end of Squashfs image.

In case you didn't know, this data can be found in /etc/readahead, in
exactly the order used for readahead during startup.

-- 
 - mdz



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