On Thu, 21 Oct 2010, Mark Riordan wrote:
First, upload performance is slow, especially on Windows.
This is known and has been discussed several times. I have added comments to the TODO file about ideas I have to improve things, but afaik I am the only one (slowly) working on this so don't expect any sudden changes.
Secondly, uploads don't work at all if I enable compression.
Exactly what I found out yesterday: http://www.libssh2.org/mail/libssh2-devel-archive-2010-10/0104.shtml
Without compression, uploads succeed, but performance is horrible on Windows Here's a table of performance. http://60bits.net/sni/libssh2-perf.htm
Gosh! Those are really terrible numbers. Well I have nothing better to offer than just roll up your sleeves and get cracking on finding the bottle necks and improving the code flow. I've mentioned my thoughts on this a few times already and I believe most of them are now collected in the TODO.
Thanks a lot for the table though, it certainly is an eye-opener that we need to get this fixed.
I wonder why I get so much higher performance when I do uploads over localhost. I would expect a gigabit link with really fast roundtrips to get similar speeds.
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