X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-0.4 required=5.0 tests=AWL,BAYES_00,SARE_MSGID_LONG40 X-Spam-Check-By: sourceware.org MIME-Version: 1.0 Date: Wed, 24 Feb 2010 10:02:53 +0530 Message-ID: <6d19fbfd1002232032q38cbbd95h2d85cac48badacad@mail.gmail.com> Subject: Max no of parallel SSH sessions with Cygwin SSHD From: Girish Sadhani To: cygwin AT cygwin DOT com Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Hello All, I am trying to use Cygwin SSHD in my project. I have defined a subsystem under SSHD which gets accessed by the client. Each subsystem invocation spawns 3 processes (1 sshd + 1sh + 1 tclsh). I have observed that on WinXP only 22 parallel sessions are possible whereas on a Win2k3 server 48 parallel sessions are possible. Both are of a similar hardware configuration (3Ghz CPU, 2GB RAM). After which it seems like some resource allocation limit is reached, though there is a lot more Memory and CPU available. I have tried increasing the heap allocation but it does not help the situation. 1. My question is that why is there a difference between the 2 OSs ? 2. Does XP have resource allocation lower limits than win2k3 server ? 3. How can this be overcome ? (some OS settings ..) -- Regards, Girish. S. Sadhani -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple