delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2009/03/11/09:45:46

X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-2.0 required=5.0 tests=BAYES_00,SARE_MSGID_LONG40,SPF_PASS
X-Spam-Check-By: sourceware.org
MIME-Version: 1.0
In-Reply-To: <22455814.post@talk.nabble.com>
References: <22455814 DOT post AT talk DOT nabble DOT com>
Date: Wed, 11 Mar 2009 10:45:28 -0400
Message-ID: <5a05e0e60903110745n3f5c7defs475bdbc3f190edac@mail.gmail.com>
Subject: Re: Connecting to cygwin ssh is slow
From: Dave Steenburgh <dave DOT steenburgh AT gmail DOT com>
To: cygwin AT cygwin DOT com
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On Wed, Mar 11, 2009 at 10:05 AM, UdiK <udik AT commtouch DOT com> wrote:
> When I connect to our cygwin SSH machine (Windows 2003 server), it usually
> takes more than 5 seconds to get a prompt and be able to start working. This
> delay slows down many of our scripts which rely on SSH to connect to
> Windows.
>
> What causes this delay? What is SSH doing that is taking it so long? I don't
> have any anti-virus running on that machine. If anybody has any explanations
> I really appreciate the help.

Connect, then immediately logoff and connect again.  Does the second
connect have the same pause?  If not, then I suspect the delay is your
hard drive.  If you connect infrequently, then when you do connect,
it's likely that the necessary processes (or parts of them) will have
to be retrieved from the page file, and any configuration files will
probably have to be loaded from the hard drive.  If you connect
frequently, I think there's a way to make the ssh connection
persistent---you might avoid the delay that way, or lessen it.  I
don't know how to set that up, though.

I also experience a delay when I make the first connection, but
subsequent connections are pretty snappy.  Most of the time I don't
need subsequent connections, but I do have a script that makes two
connections.  If this isn't the answer, then I'd like to know what is,
so I can improve that first connection time.

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019