Get OpenBSD/NetBSD Latest Install ISO/sets via Rsync

The performance, maybe not a good way to get iso.

OpenBSD
One big install iso

rsync -avz --progress rsync://ftp.estpak.ee/openbsd/snapshots/amd64/install48.iso .

install48.iso
240121856 100% 206.91kB/s 0:18:53 (xfer#1, to-check=0/1)

Number of files: 1
Number of files transferred: 1
Total file size: 240121856 bytes
Total transferred file size: 240121856 bytes
Literal data: 139474432 bytes
Matched data: 100647424 bytes
File list size: 47
File list generation time: 2.846 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 108569
Total bytes received: 139521735

sent 108569 bytes received 139521735 bytes 115159.01 bytes/sec
total size is 240121856 speedup is 1.72



NetBSD
boot iso and install sets

VER=`rsync rsync://nyftp.netbsd.org/NetBSD-daily/HEAD/|tail -n1|cut -d ‘:’ -f 3|cut -d ‘ ‘ -f 2` rsync -avz --progress rsync://nyftp.netbsd.org/NetBSD-daily/HEAD/$VER/amd64/binary/sets/ ./sets/ rsync -avz --progress rsync://nyftp.netbsd.org/NetBSD-daily/HEAD/$VER/amd64/installation/cdrom/boot.iso .

Number of files: 20
Number of files transferred: 5
Total file size: 223682054 bytes
Total transferred file size: 69074290 bytes
Literal data: 67497874 bytes
Matched data: 1576416 bytes
File list size: 730
File list generation time: 30.022 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 96373
Total bytes received: 67522725

sent 96373 bytes received 67522725 bytes 162741.51 bytes/sec
total size is 223682054 speedup is 3.31


The performance is not so good if you want to keep in sync often.
Possible reason see http://svana.org/kleptog/rgzip.html
http://samba.anu.edu.au/rsync/rsync-and-debian/rsync-and-debian.html