[Xen-users] scp performance from machine to guest

[Zach Moazeni <zach.lists@xxxxxxxxx>]

Hey gang,

We have a few machines running Xen. For the purposes of this question  
they're laid out this way:
machine 1 => guest 1

machine 2 => guest 2

(both guests are stored using LVM on their respective machines)

I scp'd a file from guest 1 to guest 2 and had a transfer speed of  
around 288 Mb/s. Nothing unexpected there.
Then I scp'd a file from machine 2 to guest 2 and saw a transfer speed  
of around 1.2 Mb/s. This is extremely surprising. I would have  
expected much faster transfer speed primarily because it's doesn't  
have to travel through the network.
Can you guys lend any insight to this?


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