[Libguestfs] Need Help

[Priyanka Ranjan]

Thanks a lot Rechard for your inputs.

On Fri, Sep 12, 2014 at 11:23 PM, Richard W.M. Jones <rjones at redhat.com>
wrote:

> On Fri, Sep 12, 2014 at 10:40:14PM +0530, Priyanka Ranjan wrote:
> > Hello Experts,
> >
> > I need a help from you . I am using CentOS 6.4 and using guestfish
> > to modify an ESX image.
> >
> > I am adding a disk, executing "run" command and mounting it.  the
> > "run" command is taking around 50 seconds . Is there any way to
> > minimize it.
>
> So first of all, measure the performance.  Run the simple
> baseline tests here:
>
> http://libguestfs.org/guestfs-performance.1.html#baseline-measurements
>
> If, after several runs, this stays at ~ 50 seconds, then it's likely
> because you are running this inside a virtual machine, on Amazon EC2,
> or on a machine which has virtualization disabled (eg in the BIOS
> settings).  You can fix that by using baremetal (or maybe nested virt).
>
> You will find other tips in the guestfs-performance(1) man page that I
> linked to above.
>
> > If we can not minimize it then Can we create and keep the guestfish
> > virtual shell open so that we can just add a disk , mount and modify
> > the image in few seconds.
>
> Yes, but unfortunately not on CentOS 6.  On RHEL / CentOS 7 we support
> hotplugging in both libguestfs and guestfish, and that lets you do
> exactly what you describe above.
>
>   http://libguestfs.org/guestfs.3.html#hotplugging
>
> 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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