[LAU] LVM

[Fernando Lopez-Lezcano]

On Thu, 2008-10-16 at 15:46 +0200, Joern Nettingsmeier wrote:
> David Baron wrote:
> > I am considering setting up an LVM. Does this cause a performance hit for real 
> > time audio file accesses?
> 
> i've been using lvm-based partitioning for a long time now, and have
> never had problems. but it never occurred to me to do a/b measurements
> either.
> in any case, i don't see how it could have an impact (and if it did,
> that would probably be considered a bug by the kernel crowd and get
> fixed real quick).

It does have an impact but I don't have numbers to tell you how big it
is. In testing different configurations on servers I have found that a
filesystem running on top of a raid array is faster than a filesystem
running on top of LVM on a raid array. 

-- Fernando