[LUGOS] ssh hitrost kopiranja

[Jure Pečar]

root at backup1:~# dd if=/dev/zero bs=1M count=1024 | ssh root at backup2 "cat > /dev/null"
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 211.312 seconds, 5.1 MB/s

root at backup1:~# dd if=/dev/zero bs=1M count=1024 | ssh -C -c blowfish root at backup2 "cat > /dev/null"
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 889.978 seconds, 1.2 MB/s

root at backup1:~# dd if=/dev/zero bs=1M count=1024 | ssh -c blowfish root at backup2 "cat > /dev/null"
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 318.081 seconds, 3.4 MB/s

root at backup1:~# dd if=/dev/zero bs=1M count=1024 | ssh -C root at backup2 "cat > /dev/null"
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 890.529 seconds, 1.2 MB/s

Mnenje?

Predvsem preseneča kompresija, ker bi morala same nule stisnit v nulo, pa ji to očitno nekako ne rata najbolje.

Ima kdo konkretne izkušnje s ssh-hpn patchem?


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Jure Pečar
http://jure.pecar.org