performance issue

I am using Winscp 4.02 with sftp.

I did some performance measures and I observe different byte rate transfer according to transfer direction:
server -> winscp (get): byte rate transfert = 300 KByte/s
winscp -> server (put): byte rate transfert = 2000 KByte/s

conditions of test:
direct link beetween server and local winscp ( no external charge , no hub ...)
encryption algorithm = AES (same result with blowfish)

I did the same measures with ssh secure shell version 3.2.9 and the results where:
server -> local (get): byte rate transfert ~ 2000 KByte/s
local -> server (put): byte rate transfert ~ 2000 KByte/s

Have you an explication of such a difference ?
best regards

Crepeau wrote:

I am using Winscp 4.02 with sftp.

I did some performance measures and I observe different byte rate transfer according to transfer direction:
server -> winscp (get): byte rate transfert = 300 KByte/s
winscp -> server (put): byte rate transfert = 2000 KByte/s

conditions of test:
direct link beetween server and local winscp ( no external charge , no hub ...)
encryption algorithm = AES (same result with blowfish)

I did the same measures with ssh secure shell version 3.2.9 and the results where:
server -> local (get): byte rate transfert ~ 2000 KByte/s
local -> server (put): byte rate transfert ~ 2000 KByte/s

Have you an explication of such a difference ?
best regards

same here.