From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Wyzer <john.wyzer@gmx.de>
Subject: Re: abysmal performance
Date: Sun, 01 May 2011 00:33:20 +0200
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Excerpts from Mitch Harder's message of Sun May 01 00:16:53 +0200 2011:
> > Hmm.
> > Tried it and it gives me about 500000 lines of
> >
> > FIBMAP: Invalid argument
> >
> > and then:
> >
> > large_file: 1 extent found
> >
> > Is that the way it is supposed to work?
> > Just asking because this was part of a vmware disk image. Both the virtual
> > machine and the rest of the host system are almost unusable once the VM ist
> > started (even more unusable than without vmware :-D )
> 
> No.  It sounds like the filefrag command is getting confused in the
> virtual environment.

Misunderstanding :-) I tried filefrag _on_ a vmware disk image, not  inside a
virtual machine.
The whole btrfs story here is on a real machine.