[PATCH] Improving sftp client performance

[Dan Kaminsky]

Tobias--

    I'm a little wary of what's going on at the hard drive level.  Clever
file system tricks aside, it's *always* faster to read and write sequential
blocks of data.  Might there be any coalescing of requests on the server
level?

    Also, I think it was mentioned that the overlapping techniques are only
being used for blocks within one file.  It's *very* common to need to copy
vast numbers of small files from one location to another, and finding
efficient means of doing so can sometimes be challenging.  It's something to
keep in mind.

    Thanks for your work!

--Dan