CentOS - Oct 2011 - Scp and SFTP speed much difference???

we have CENTOS 5.X on server A and Server B.  Both servers have Gigabit network
card connect to same switch.

I test network speed from Server A to Server B and found speed much difference:

SFTP:   42 MB/Sec

SCP:    20 MB/sec

SCP command:  scp -Crp -o CompressionLevel=1 user1 at ServerB:/TMP/File1 .

Anyone know how to improve SCP speed?

On 10/12/11 9:07 AM, mcclnx mcc wrote:
> we have CENTOS 5.X on server A and Server B.  Both servers have Gigabit
network card connect to same switch.
>
> I test network speed from Server A to Server B and found speed much
difference:
>
> SFTP:   42 MB/Sec
>
> SCP:    20 MB/sec
>
> SCP command:  scp -Crp -o CompressionLevel=1 user1 at ServerB:/TMP/File1 .
>
> Anyone know how to improve SCP speed?
don't specify compression on gigE, it will just slow you down.

scp/sftp should be virtually the same speed, all else being equal





-- 
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast