Sejak Fedora 11 dikenalkan deltarpm. Deltarpm akan menghemat pengunduhan paket rpm saat melakukan update paket/aplikasi. Tadi mencoba update paket sebanyak 258 dan instal 7 paket, keseluruhan paket 363 MB. Penggunaan deltarpm perlu unduh 53 MB, ditambah unduh 112 MB. Plugin presto menyatakan reduksi atau penghematan sebesar 79% (dari 251 MB ke 53 MB).

Berikut log saat melakukan update:

Transaction Summary
========================================
Install       7 Package(s)
Upgrade     258 Package(s)

Total download size: 363 M
Is this ok [y/N]: y
Downloading Packages:
Setting up and reading Presto delta metadata
f15-all/prestodelta                                                                                                                                                      | 2.0 MB     01:24
Processing delta metadata
Download delta size: 53 M

Lanjutan:

…

Finishing rebuild of rpms, from deltarpms
<delta rebuild>                                                                                                                                                          | 251 MB     00:01
Presto reduced the update size by 79% (from 251 M to 53 M).
Package(s) data still to download: 112 M