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X-HELO: calimero.vinschen.de
Date: Tue, 14 Apr 2015 10:00:44 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Making Cygwin More Tolerant of Orphaned SIDs?
Message-ID: <20150414080044.GB7343@calimero.vinschen.de>
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References: <CADi7v6LUZhr6UVSYA+Fe27f-aWJcxVxUXb3vR02rVuW9cG3a6A AT mail DOT gmail DOT com> <loom DOT 20150414T085644-392 AT post DOT gmane DOT org>
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On Apr 14 06:57, Achim Gratz wrote:
> Bryan Berns <bryan.berns <at> gmail.com> writes:
> > Based on some rudimentary performance tests, it would appear that
> > Cygwin may repeatedly try to lookup information on a SID form an ACE
> > if cannot find a corresponding account.... which will undoubtedly
> > occur for orphaned SIDs.  If the volume being read is remote, this can
> > result in some massive slowdowns if there are many files in the
> > directory.  Is there any way to augment this behavior?
>=20
> Mounting the volume "noacl" doesn't help?

Orphaned SIDs shouldn't happen.  Disabling accounts, ok, but removing
them?  I don't know.  So the question is, if there's no account with
these SIDs anymore, why aren't these SIDs removed from the ACLs?
It's not only Cygwin.  These SIDs also unnecessarily slow down each
single access check of the OS.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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