On Wed, Aug 04, 2010 at 02:06:58PM -0600, David S. Ahern wrote: > > > On 08/04/10 11:34, Avi Kivity wrote: > > >> And it's awesome for fast prototyping. Of course, once that fast > >> becomes dog slow, it's not useful anymore. > > > > For the Nth time, it's only slow with 100MB initrds. > > 100MB is really not that large for an initrd.
<note> I'd just like to note that the libguestfs initrd is uncompressed. The reason for this is I found that the decompression code in Linux is really slow. I have to admit I didn't look into why this is. By not compressing it on the host and decompressing it on the guest, we saved a bunch of boot time (3-5 seconds IIRC). Anyway, comparing 115MB libguestfs initrd and other initrd sizes may not be a fair comparison, since almost every other initrd you will see will be compressed. </note> Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v
