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

Richard W.M. Jones rjones at redhat.com
Thu Aug 3 09:41:37 UTC 2017


On Thu, Aug 03, 2017 at 05:37:39PM +0800, lampahome wrote:
> 2017-07-31 18:57 GMT+08:00 Richard W.M. Jones <rjones at redhat.com>:
> 
> > On Mon, Jul 31, 2017 at 06:52:28PM +0800, lampahome wrote:
> > > if I mount through guestfs library in python or guestfish, the same
> > > condition happenes?
> > >
> > > I mean the insane number of layers and the performance
> >
> > No.  The layers are only present because guestmount uses FUSE.
> >
> > libguestfs itself performs very well if you are careful to use it in
> > the correct way.
> >
> how about guestfish?
> guestfish follows libguestfs or guestmount?

guestfish is a thin wrapper around the libguestfs API.

I (again) strongly suggest that you read the documentation which
explains all this in great detail:

http://libguestfs.org/guestfs-internals.1.html#architecture
http://libguestfs.org/guestfish.1.html#description
http://libguestfs.org/guestfs-performance.1.html

Rich.

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