Re: [Xen-users] cow implementation

[Molle Bestefich <molle.bestefich@xxxxxxxxx>]

> > Anand wrote:
> > > http://www.atconsultancy.nl/cowloop/

> Michael Heyse wrote:
> > Have you seen this page?
> >
> > http://wiki.xensource.com/xenwiki/COWHowTo

Anand wrote:
> Yes i saw that however cant seem to find a howto or something which i can
> use to implement it for testing.

Are you going to do performance tests?

Finding out which one of UnionFS, cowloop and minifo:
http://www.denx.de/wiki/bin/view/Know/MiniFOHome

is the best performer would be very relevant when running multiple
instances in virtual machines!

Are you going to CC your results to the list? :-)

I read somewhere that unionfs has a 10% performance overhead when
using 2 filesystems and compiling a kernel.  Can't remember the
hardware or other details :-/.

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