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Mail Archives: cygwin-developers/2002/07/29/15:31:14

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Message-ID: <009c01c23736$4a61a4b0$6132bc3e@BABEL>
From: "Conrad Scott" <Conrad DOT Scott AT dsl DOT pipex DOT com>
To: "Pierre A. Humblet" <Pierre DOT Humblet AT ieee DOT org>
Cc: <cygwin-developers AT cygwin DOT com>
References: <010901c23724$96e5d430$6132bc3e AT BABEL> <3D4581E4 DOT BB580995 AT ieee DOT org> <005801c23730$02304170$6132bc3e AT BABEL> <3D459257 DOT 240C79DC AT ieee DOT org>
Subject: Re: TCP problems
Date: Mon, 29 Jul 2002 20:29:42 +0100
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"Pierre A. Humblet" <Pierre DOT Humblet AT ieee DOT org> wrote:
> Conrad Scott wrote:
> > Sorry: I should have been clearer there.  No: my test cygwin
> > server doesn't duplicate any of its sockets (AFAICT etc. but
I'm
> > pretty sure).
>
> Just to make sure I understand: it NEVER forks. Correct?

Never.  Ever ever.  Ever.  Not even once.

> > It's a really simple server: blocking accept,
> > read/write on the new file descriptor, then shutdown/close it
and
> > back to a blocking accept.  And it still hits the WASENOBUFS
wall
> > eventually (altho' it can be delayed by registry patches to
> > increase various TCP parameters).
>
> How long/how many accepts (more or less) is "eventually".

On my lovely little win98/SE box: one hundred connections minus a
few.

Nicholas Wourms (my (un)willing test accomplice) reported "~3
minutes" of run time before hitting the same error: so he's
getting a thousand or so (?) connections by the sounds of it.

// Conrad



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