[Cyberduck-trac] [Cyberduck] #185: Slow SFTP transfers

Cyberduck trac at trac.cyberduck.ch
Thu Nov 11 10:55:49 CET 2010


#185: Slow SFTP transfers
---------------------------------------+------------------------------------
    Reporter:  wout.mertens@…          |        Owner:  dkocher      
        Type:  enhancement             |       Status:  closed       
    Priority:  high                    |    Milestone:  4.0          
   Component:  sftp                    |      Version:  3.5          
    Severity:  major                   |   Resolution:  fixed        
    Keywords:                          |     Platform:  Mac OS X 10.6
Architecture:  Intel                   |  
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Comment (by dkocher):

 Replying to [comment:56 caeies]:
 > Back again,
 >
 > For your information the bandwidth (according to download via sftp) is
 around 11MB/s on my LAN. So there's still a x2 factor missing somewhere.

 You could try what impact the cipher has on the transfer speed. We are
 usually negogiating `aes256-ctr` wheras OpenSSH prefers`aes128-ctr`. You
 could put the weaker cipher on top in `BlockCipherFactory.java` for
 testing.

-- 
Ticket URL: <http://trac.cyberduck.ch/ticket/185#comment:64>
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