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

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