On Tue, 19 Oct 2010, may nothing wrote:
Question: Why is the libssh2 sftp so much slower (or is it an issue of my
code) that the openssh one ?
There are several problems, and I would assume the two primary reasons are:
1 - the lack of "pipelining", so that it only sends a package at a time and
then awaits the ACK for it before next packet is sent.
2 - the multiple malloc+copy + malloc+copy series that libssh2 does, as I've
mentioned before
What can be done to increase the transfer speed ?
Fixing these two issues. I've previously posted about what I think needs to be
done to fix #2. #1 might need a slightly modified API to work really nice, but
I haven't really finished my thoughts on that yet.
--
/ daniel.haxx.se
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