[Libguestfs] read/write performance through mount point by guestmount

[lampahome]

if I mount through guestfs library in python or guestfish, the same
condition happenes?

I mean the insane number of layers and the performance

2017-07-31 16:52 GMT+08:00 Richard W.M. Jones <rjones at redhat.com>:

> On Mon, Jul 31, 2017 at 09:49:00AM +0100, Richard W.M. Jones wrote:
> > On Mon, Jul 31, 2017 at 12:20:10PM +0800, lampahome wrote:
> > > I mount the disk.qcow2 on the /home/test/, and create a 50GB file.
> >
> > Mount the disk how?
>
> OK, subject says using guestmount.
>
> I'm surprised the slowdown isn't more than 95%.  It's using FUSE which
> goes through an insane number of layers, see the "Update" section in
> this post:
>
>   https://rwmj.wordpress.com/2009/10/30/fuse-support-for-libguestfs/
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~
> rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> libguestfs lets you edit virtual machines.  Supports shell scripting,
> bindings from many languages.  http://libguestfs.org
>
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