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Date:	Wed, 10 Dec 2014 15:59:29 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: [ANNOUNCEMENT] TEST RELEASE: Cygwin 1.7.34-002
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On Dec  9 15:05, Warren Young wrote:
> On Dec 9, 2014, at 3:56 AM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> =
wrote:
>=20
> > On Dec  8 15:14, Warren Young wrote:
> >> On Dec 6, 2014, at 12:49 PM, Corinna Vinschen <corinna-cygwin AT cygwin DOT c=
om> wrote:
> >>=20
> >>> - Cygwin can now generate passwd/group entries directly from Windows
> >>=20
> >> don=E2=80=99t use AD here, and /etc/passwd suffices
> >> for my purposes
> >=20
> > You can still benefit, I hope.  Even when using only the local SAM, the
> > process startups should be a tad bit faster than when every exec'ed
> > process has to read /etc/passwd and /etc/group files:
>=20
> Challenge=E2=80=A6accepted.
>=20
> I decided to do the nastiest thing I could think of to Cygwin: run a
> configure script. ;)
>=20
> In my Windows 10 Technical Preview test VM, Cygwin 64 1.7.33 runs the
> iperf3 configure script in 20 seconds.  On upgrading to 1.7.34-002,
> without doing anything to nsswitch.conf, the time remained the same.
> On making the suggested change to nsswitch.conf, configure time went
> *up* to 21 seconds.
>=20
> So, I moved the new nsswitch.conf back out of the way, relaunched
> MinTTY, and configure time dropped its extra second.
>=20
> Hmm.

Indeed, hmm.  I see a tiny loss in performance myself.  It's puzzeling.
During the entire configure run only at the end are a few minor (but
unnecessary) requests for account information.  I'll investigate this
in the next couple of days.


Corinna

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

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