Zhi Yong Wu
2014-Sep-28 17:35 UTC
Re: [Libguestfs] Why libguestfs guest exist exceptionally?
On Mon, Sep 29, 2014 at 1:27 AM, Richard W.M. Jones <rjones@redhat.com> wrote:> On Mon, Sep 29, 2014 at 01:22:19AM +0800, Zhi Yong Wu wrote: >> Yes, I am trying to run it in Xen Domain0. I thought that we can use >> Domain0 as a public libguestfs VM, This will avoid starting a new >> guest for virt-xxx every time, But Domain0 has no corresponding qemu >> task. So this way isn't available. >> Now, i am considering if we can run private VM for libguestfs which >> will keep running forever and if it will bring more trouble. > > User-Mode Linux is also a possibility. Slow but consistentSlow is a big concern...> performance. Unfortunately it lacks several important features > (notably qcow2 support). The other unfortunate thing is that weNo matter, our image all use vhd or raw, not qcow2.:)> didn't support UML in 1.20 -- it was added in 1.24. > > Rich. > > -- > Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones > Read my programming and virtualization blog: http://rwmj.wordpress.com > virt-builder quickly builds VMs from scratch > http://libguestfs.org/virt-builder.1.html-- Regards, Zhi Yong Wu
Richard W.M. Jones
2014-Sep-28 17:41 UTC
Re: [Libguestfs] Why libguestfs guest exist exceptionally?
On Mon, Sep 29, 2014 at 01:35:08AM +0800, Zhi Yong Wu wrote:> On Mon, Sep 29, 2014 at 1:27 AM, Richard W.M. Jones <rjones@redhat.com> wrote: > > User-Mode Linux is also a possibility. Slow but consistent > Slow is a big concern...There are some measurements here: http://rwmj.wordpress.com/2013/08/14/performance-of-user-mode-linux-as-a-libguestfs-backend/ 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
Zhi Yong Wu
2014-Sep-29 08:00 UTC
Re: [Libguestfs] Why libguestfs guest exist exceptionally?
On Mon, Sep 29, 2014 at 1:41 AM, Richard W.M. Jones <rjones@redhat.com> wrote:> On Mon, Sep 29, 2014 at 01:35:08AM +0800, Zhi Yong Wu wrote: >> On Mon, Sep 29, 2014 at 1:27 AM, Richard W.M. Jones <rjones@redhat.com> wrote: >> > User-Mode Linux is also a possibility. Slow but consistent >> Slow is a big concern... > > There are some measurements here: > > http://rwmj.wordpress.com/2013/08/14/performance-of-user-mode-linux-as-a-libguestfs-backend/What do you think that it is good to backport UML support to 1.20?> > 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-- Regards, Zhi Yong Wu