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Re: very poor cygwin scp performance in some situations
- From: "Steven Hartland" <killing at multiplay dot co dot uk>
- To: "'Cygwin List'" <cygwin at cygwin dot com>
- Date: Mon, 27 Mar 2006 19:59:02 +0100
- Subject: Re: very poor cygwin scp performance in some situations
- References: <048501c651b8$0862c1c0$a501a8c0@CAM.ARTIMI.COM>
----- Original Message -----
From: "Dave Korn"
On 27 March 2006 16:39, Steven Hartland wrote:
I've done quite a bit of digging and not found any real answers
on why cygwin's scp performance is so poor.
See the thread about "select() too slow" last week for an explanation of the
Nagle algorithm, how windoze's implementation of it appears to be crippling,
and how using TCP_NODELAY can fix everything. (Thread ran from 11 Mar to 19
As a quick and dirty hack I channed set_nodelay into set_nonblock which
seems to be set on all the sockets but unfortunately it doesn't seem to help.
Anyone more familiar with the internals of openssh know where this might
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