X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:to:from:subject:date:message-id:references
	:mime-version:content-type:content-transfer-encoding; q=dns; s=
	default; b=mIT3fFfLSydZIaYL0oWQeVauA9axFrP/qswl0WuCx97A5uhH0F5ch
	UWp8AerfrrioW0brtmVO5YFLwIZhcZBMNGn0xDwfXwZ7PZKaslWl+0GkaW1L78Hy
	C+B2euWasGHBD6nERj2KqCmvaRPqY+XRdNU1I2FprpO4iLg2xHguMo=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:to:from:subject:date:message-id:references
	:mime-version:content-type:content-transfer-encoding; s=default;
	bh=wJHp7/g4a7zxLm6JgA4rqpYlWEw=; b=ipBnONiat/aZOknE+C0A/zHtAxq+
	0Ljy1uxun4ezEgxNwSopCC2u3c+VivhXGdL7tWEEjN5W/VOIU8VrkGNqr4XeHZay
	dRpJMGG7Lqtg5lu3dMPAGGXmzMYnHmgQWf6I4XgRMJ2XKIksxP1p6XLXqxikSR/r
	ERd293RBB4SpesM=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.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
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=-4.4 required=5.0 tests=AWL,BAYES_50,FSL_HELO_BARE_IP_2,RCVD_IN_DNSWL_LOW,RCVD_NUMERIC_HELO,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=no version=3.3.2
X-HELO:	plane.gmane.org
To:	cygwin AT cygwin DOT com
From:	Achim Gratz <Stromeko AT NexGo DOT DE>
Subject:	Re: [ANNOUNCEMENT] TEST RELEASE: Cygwin 2.3.0-0.4
Date:	Fri, 23 Oct 2015 14:01:27 +0000 (UTC)
Lines:	23
Message-ID:	<loom.20151023T153449-500@post.gmane.org>
References:	<announce DOT 20151022162227 DOT GC5319 AT calimero DOT vinschen DOT de>
Mime-Version:	1.0
User-Agent:	Loom/3.14 (http://gmane.org/)
X-IsSubscribed:	yes

Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> There's, as usual, a downside: AuthZ leans a bit to the slow side.

It's not too bad, as long as your network connection is fast (and fast means
short roundtrip time for an AD query).  If I take each page fault as
reported by time as a proxy for an AD access, then it needs about three
times more roundtrips to the AD.

On a server with almost perfect connectivity to the AD that increases the
wall-time of listing a very large directory with directories/files from many
users (about a quarter of all users in the AD, and not all from the local
domain) from 8 to 10 minutes.  The CPU time as well as the network traffic
is neglible in both cases.

On my local laptop things look a bit different, a small ~5% subset of the
test above goes from 20s to 200s and a different larger ~10% subset from 50s
to 500s.  While that hurts, the more usual case with many files from the
same user doesn't feel any slower at the moment.  The access through VPN
will be interesting, though...


Regards,
Achim.


--
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

- Raw text -