[linux-lvm] LILO configuration for LVM "boot" filesystem

Russell Coker russell at coker.com.au
Fri Jun 8 02:26:20 UTC 2001

On Thursday 07 June 2001 23:52, Steve Wray wrote:
> > From: linux-lvm-admin at sistina.com
> > [mailto:linux-lvm-admin at sistina.com]On Behalf Of Steven Lembark
> >
> > > Tell me, what is wrong with having /tmp as a mount point
> > > for a LV?
> >
> > LV are generally slower than other types of storage.  Since the
> > boot partition is generally cyl 0 it's on the fastest storage
> > available (short of tmpfs).
> Proportionally, how much slower is it? 50%? 25%? 12%?
> less than 1% slower?
> Does it really matter?

See my Bonnie++ web page, particularly the ZCAV part.  The graph shows 
the start of the disk being ~80% faster than the end.  Try it out on your 
own drives!

This isn't an LVM issue, it's a disk geometry layout issue.

http://www.coker.com.au/bonnie++/     Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/       Postal SMTP/POP benchmark
http://www.coker.com.au/projects.html Projects I am working on
http://www.coker.com.au/~russell/     My home page

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