[Cyberduck-trac] [Cyberduck] #185: Slow SFTP transfers
Cyberduck
trac at trac.cyberduck.ch
Tue Nov 9 22:47:37 CET 2010
#185: Slow SFTP transfers
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Reporter: wout.mertens@… | Owner: dkocher
Type: enhancement | Status: closed
Priority: high | Milestone: 4.0
Component: sftp | Version: 3.5
Severity: major | Resolution: fixed
Keywords: | Platform: Mac OS X 10.6
Architecture: Intel |
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Comment (by caeies):
Replying to [comment:58 dkocher]:
> Replying to [comment:55 caeies]:
> > Hum just another guess.
> >
> > Do we have the same problem when uploading files?
>
> OpenSSH does not use parallel requests there from what I know but one
could try if sending multiple write requests in a batch and reading status
later would make a difference there, too.
>
Are you sure ? I just made a quick try and the window size is the same as
for download one, and the window is increased at the beginning of the
upload.
And answers come from the server only after 73 requests have already been
sent ...
Size of the write is 32768 per SSH2_FXP_WRITE message If this can help.
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Ticket URL: <http://trac.cyberduck.ch/ticket/185#comment:61>
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