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:date:from:reply-to:message-id:to:subject
	:in-reply-to:references:mime-version:content-type
	:content-transfer-encoding; q=dns; s=default; b=O3dPTphCf0kBVjcE
	pU5DW6Dv5bUnfVtQHQ/XhKlrlk90/UfBLLh6v8e4PZ5to8lS/WFTTb78LnRx6ZWm
	fUhwwF4qksi4++ItvsU28gk+ZYC0ywqtI3+hlrW8I41jttXmfQWKq8uge7Jlcs5S
	6vFZGAz7YwyneXaJclYt+whLwTc=
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:date:from:reply-to:message-id:to:subject
	:in-reply-to:references:mime-version:content-type
	:content-transfer-encoding; s=default; bh=poaC9HFbQT4ccYestFRqK+
	Pmv30=; b=qw+Zkfntsju70Estc49X+mXMEd3KH8j82NCDKJlpUFeTcH4gVt2hWO
	mkheO4S7H2sH+gi5+N0weKTGLcL/ICRCmbW85b9aAsHQpCZb/7wwI9KbAJObV7F1
	dU0nWNGcYyMN5sUo4UBKIcmk2NNb0yKkx1OSLWy1uWZ+2mm58x9vk=
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=2.0 required=5.0 tests=AWL,BAYES_60,FREEMAIL_FROM,KAM_BODY_URIBL_PCCC,KAM_FROM_URIBL_PCCC,KAM_THEBAT,SPF_SOFTFAIL autolearn=no version=3.3.2
X-HELO:	smtp.ht-systems.ru
Date:	Tue, 17 Feb 2015 13:55:13 +0300
From:	Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To:	cygwin AT cygwin DOT com
Message-ID:	<435476431.20150217135513@yandex.ru>
To:	"Dennis Hagarty (dehagart)" <dehagart AT cisco DOT com>, cygwin AT cygwin DOT com
Subject:	Re: Very slow Cygwin startup on Windows 7
In-Reply-To:	<3FEEC3A37A0B0A48AA326075128C32EE4EE263B8@xmb-rcd-x01.cisco.com>
References:	<3FEEC3A37A0B0A48AA326075128C32EE4DC9F0E8 AT xmb-rcd-x01 DOT cisco DOT com> <87mw4nugdx DOT fsf AT Rainer DOT invalid> <3FEEC3A37A0B0A48AA326075128C32EE4DC9F137 AT xmb-rcd-x01 DOT cisco DOT com> <869208266 DOT 20150210030528 AT yandex DOT ru> <3FEEC3A37A0B0A48AA326075128C32EE4EE263B8 AT xmb-rcd-x01 DOT cisco DOT com>
MIME-Version:	1.0
X-IsSubscribed:	yes

Greetings, Dennis Hagarty (dehagart)!

>>If you are accepting suggestions, and up for some experimentation, try this:

>># getent passwd $(id -u) > /etc/passwd
>># getent group $(id -G) > /etc/group
>># echo -e "#\npasswd: files db\ngroup: files db\n" > /etc/nsswitch.conf
>>
>>and start bash without cygserver running. Just for test.
>>The idea is to have "your" groups in files so that in simple case of (just
>>startup" Cygwin don't have to talk to DC all too much. If at all.

>>You'd still need to run cygserver to benefit from long-time caching, though.

> Apologies for my slow response - urgent RFI's.

No need for apology :) And thank you for chiming back in. Your help is much
appreciated.

> Ok, so I reverted nsswitch to the 'files db' setting.
> I stopped cygserver
> I ran your commands to recreate /etc/passwd and /etc/group 
> (they now contain 1 line and 3 lines respectively - before it had about 10 & 21 lines in each)

That's surprisingly small amount of groups.
Even on local system, I have 11(13 if elevated) groups attached to my userid.
Perhaps, the execution of the id -G has been influenced by your current (at
that moment) /etc/group file.

> To create a bash terminal window (from cmd) takes about 5-6 minutes.
> cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!"
> 11:01:20.27
> 11:06:59.78 = 5:39.51

> Starting cygserver:
> 11:08:31.55
> 11:08:31.62 = 0:00.07

> Stopping it again:
> 11:09:19.02
> 11:15:04.45 = 05:45.43

> With the 'db' entry excluded as a control:
> 11:15:56.80
> 11:15:56.90 = 00:00.10

> I reverted back to use files+db and my larger passwd and group files, turned on cygserver:
> 11:19:34.31
> 11:19:34.38 = 00:00.07

Could you please do me a favor and repeat the test with a little deviation of
my previous suggestion?

1. Remove /etc/{nsswitch.conf,passwd,group} files. (Rename, move away - by
your choice.)
2. Stop cygserver, if it is running, and any other Cygwin-related programs.
3. Start the mintty (elevated, if need) with write access to /etc. Supposedly,
this will be slow.
4. Make sure id -G lists all the groups you're member of.
The `id -znG | tr "\0" "\n"` would probably be more visible.
5. Repeat the steps from previous suggestion.
    getent passwd $(id -u) > /etc/passwd
    getent group $(id -G) > /etc/group
    printf "%s\n" "passwd: files db" "group: files db" > /etc/nsswitch.conf
6. Close and restart mintty


--
WBR,
Andrey Repin (anrdaemon AT yandex DOT ru) 17.02.2015, <13:35>

Sorry for my terrible english...


--
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 -