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X-HELO:	calimero.vinschen.de
Date:	Mon, 17 Aug 2015 23:04:06 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: commands spends time in cygheap_user
Message-ID:	<20150817210406.GJ17917@calimero.vinschen.de>
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On Aug 17 22:55, Corinna Vinschen wrote:
> On Aug 17 10:13, Corinna Vinschen wrote:
> > On Aug 17 10:07, Corinna Vinschen wrote:
> > > On Aug 16 05:35, mku wrote:
> > > > I changed cygwin1.dll to Version 2.2.1 and got the results shown in=
 the
> > > > attached log file (
> > > > cygwin-time-lag.txt
> > > > <http://cygwin.1069669.n5.nabble.com/file/n120553/cygwin-time-lag.t=
xt>  ).
> > > > I'm sorry to say that the problem has not disappeared with that pat=
ch.
> > >=20
> > >=20
> > > Too bad, I thought skipping the SID<->uid mapping per RFC 2307 is the
> > > culprit.
> >=20
> > s/is the culprit/fixes the problem.
> >=20
> > >=20
> > > Are you sure your /etc/nsswitch.conf is set to
> > >=20
> > >   passwd: files
> > >   group: files
> > >=20
> > > Can you print it out, please?
> > >=20
> > > I'll try to reproduce this again in the next few days.
>=20
> I managed to reproduce the issue and I think I found the actual problem
> here.  When trying to create the supplementary group list of the current
> user, Cygwin called LookupAccountSids indiscriminately.  If you don't
> have access to your AD, this call is bound to take some time, 5 to 10
> secs in my testing.
>=20
> I changed the code so that when "group: db" is set in /etc/nsswitch.conf

uhm, make that

  ...when "group: files" is set...

> it will only utilize /etc/group to fetch group information.
>=20
> I uploaded a new developer snapshot containing this patch to
> https://cygwin.com/snapshots/  Please give it a try.  For testing, just
> replace your current DLL with the snapshot DLL temporarily.


Thanks,
Corinna

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

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