Can we have a Delta-DVD release

[Andre Robatino]

I made and then applied the deltaiso between 32-bit F9 final and F10 final.

[andre at compaq-pc tmp]$ ls -l Fedora*iso new.iso
-rw-rw-r-- 1 andre andre 3662573568 2009-04-21 18:17 Fedora-10-i386-DVD.iso
-rw-rw-r-- 1 andre andre 1819893388 2009-04-21 19:03 
Fedora-9_10-i386-DVD.diso
-rw-rw-r-- 1 andre andre 3580680192 2009-04-21 18:10 Fedora-9-i386-DVD.iso
-rw-rw-r-- 1 andre andre 3662573568 2009-04-21 19:43 new.iso

The deltaiso is just under half the size of the full ISO.  On my 
single-core 2.7 GHz AMD box with 4GB of RAM, applydeltaiso took just 
under 38 minutes (makedeltaiso took 40).  My download speed is 3 
Mbits/s, so even with a full speed download, it takes about 3 hours for 
the full ISO, so my reconstruction time is less than half of the saved 
download time.  For someone on 768 Kbits/s, it's much better than that. 
    I would definitely download the deltaiso if it was available.

 > ~40 mins on a 2GHz Core 2 Duo, 2GB ram.

Does applydeltaiso make use of multiple cores, or just one?  I'm 
guessing just one.  It probably doesn't need that much memory, either, 
since it only processes one package at a time and reads/writes to disk.
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