The files are different, the second a few bytes smaller, loaded after, and sftp is faster.A new version of FastCopy Portable has been released.

With no option at all, the simple possible test, with 2 different dumps files, both of 1.66G

Laurent Schneider Post author at I started the test this morning with a huge file… but I know you are impatient to get an answer so I tried again with an export dump that is a 1.66Gb in size.

Thanks to all my contributors tmuth, Ik_zelf, TanelPoder, fritshoogland, jcnars, aejes, surachart, and the ones the will answer after the writting of this blog post… I did not install new software and I have a pretty old openssh client (3.8). I got hints about the buffer size, about SFTP, about the cipher algorythm, and about parallelizing. Ok, let’s try first to transfer 10 files of 100M from srv001 to srv002 with scp : I have not gone to far in recompile ssh and I did not try plain ftp. How do you fastcopy in Unix without installing Software and without root privilege?

Fastcopy tuning