Question performnace of SSH v1 vs SSH v2

Gert Doering gert at greenie.muc.de
Tue Mar 1 07:29:47 EST 2005


Hi,

On Mon, Feb 28, 2005 at 02:09:34PM -0500, Michael A Stevens wrote:
> There also is a complication with just scaling the SSH window to a larger 
> size because of a small bug in the channel code that grows a buffer to 
> something larger than the buffer check allows. This really shouldn't 
> happen though, as SSH should be able to depend on the underlying TCP 
> buffer to hold data that it has not fetched yet.

If you have parallel streams, this will induce head-of-line blocking
(session of one stream sits in the TCP buffer, blocking stuff for
other channels).

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de




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