With the SSH-HPN you can achieve over 200MB/sec. Depends on your latency and packet drops but you should certainly try a modified ssh/scp with rsync. Also are you using compression with rsync -z? That's an area that could be multi threaded.
On Jan 20, 2013, at 3:25 PM, Kevin Korb <k...@sanitarium.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > You can use the HPN enhancement patches for ssh. They do make a big > difference: http://www.psc.edu/index.php/hpn-ssh > > On 01/20/13 18:22, Markus Moeller wrote: >> Hi Kevin, >> >> but rsync uses ssh doesn't it ? Are there any tuning options for >> buffers to deal with the tcp SYN SYN-ACK delay ? >> >> Thank you Markus >> >> >> "Kevin Korb" <k...@sanitarium.net> wrote in message >> news:50fc5e6f.1000...@sanitarium.net... rsync does not use scp in >> any way. >> >> On 01/20/13 14:47, Markus Moeller wrote: >>>>> I try to rsync a lot of data over a long distance AU to UK >>>>> and get a slow data rate because of the known slow scp >>>>> performance over long distances. Would it be possible with >>>>> rsync to run multiple scp process at the same time ? >>>>> >>>>> Thank you Markus >>>>> >>>>> >> >>> -- Please use reply-all for most replies to avoid omitting the >>> mailing list. To unsubscribe or change options: >>> https://lists.samba.org/mailman/listinfo/rsync Before posting, >>> read: http://www.catb.org/~esr/faqs/smart-questions.html >>> >> >> > > - -- > ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ > Kevin Korb Phone: (407) 252-6853 > Systems Administrator Internet: > FutureQuest, Inc. ke...@futurequest.net (work) > Orlando, Florida k...@sanitarium.net (personal) > Web page: http://www.sanitarium.net/ > PGP public key available on web site. > ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.19 (GNU/Linux) > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iEYEARECAAYFAlD8fOkACgkQVKC1jlbQAQcqTwCeMsxo3MMyfFx3omGpIu5ELDuM > V64AoLdq5ak55CPIIjVk7AHK6U+0XTbN > =pu+/ > -----END PGP SIGNATURE----- > -- > Please use reply-all for most replies to avoid omitting the mailing list. > To unsubscribe or change options: > https://lists.samba.org/mailman/listinfo/rsync > Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html