I am looking for ways to speed up scp over 10GigE. With parallel transfer of 4x 8GB files, I get the following test results with various ciphers.
These tests maxed out 4 cores with encryption overhead. SSH Options: [] 42.19127261151704773780 MB/s 41.32435720074992870891 MB/s 41.22255300977449037448 MB/s 35.14314848096707088842 MB/s SSH Options: [-o Cipher=arcfour] 42.29364755264296110810 MB/s 41.33048144476525498397 MB/s 40.66949911950141243635 MB/s 34.96835809940579522864 MB/s SSH Options: [-o Cipher=blowfish] 41.31823477141503563833 MB/s 41.17589132764324310451 MB/s 40.60436476031948831063 MB/s 37.93828213333256503154 MB/s SSH Options: [-o Ciphers=arcfour] 63.46934728314239543624 MB/s 63.12456133140056259549 MB/s 60.76352210664413222751 MB/s 58.96905384031456559350 MB/s SSH Options: [-o Ciphers=blowfish-cbc] 41.30803475295660396171 MB/s 41.07683306590647371566 MB/s 41.01843094015703567390 MB/s 37.04298839486332491988 MB/s SSH Options: [-o Ciphers=aes256-ctr] 35.52817257150550157716 MB/s 35.12986798313667520325 MB/s 34.83586359188837309574 MB/s 33.97713352365103381419 MB/s SSH Options: [-o Ciphers=3des-cbc] 14.26907486929738814750 MB/s 14.23944679498915951801 MB/s 14.12143966591359995680 MB/s 13.70012503702996703140 MB/s The data itself is not sensitive and does not really need to be encrypted, although "security" policy between the organisations involved may prohibit disabling of encryption. :-/ Any suggestions? I have searched the list for "scp 10gigE" and only found the following post in 2004. >On Thu, 18 Nov 2004, Jonathan Weiss wrote: > >> Hi folks, >> >> Somebody had a look at http://www.psc.edu/networking/projects/hpn-ssh/ ? >> >> Greets, >> Jonathan > >Lessee, pulling Chris Rapier's card out of my pocket. I read the poster >presentation at SuperComputing04 last week in Pittsburgh. Looks >interesting but I'm not so sure how useful it would be in real world >commodity networks. > >I'm planning on setting up some boxen with the patched ssh when I get back >from next week's US Holiday, but I work in a world where 10GigE is already >installed to selected servers and workstations. > >diana Is there any interest or further development with high bandwidth scp since 2004?
