X-Recipient:	archive-cygwin AT delorie DOT com
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.1 sourceware.org AFCF0385AC3B
Authentication-Results:	sourceware.org; dmarc=none (p=none dis=none)
	header.from=islandmacguy.com
Authentication-Results:	sourceware.org; spf=pass smtp.mailfrom=islandmacguy.com
X-Virus-Scanned:	Debian amavisd-new at emo03-pco.easydns.vpn
Mime-Version:	1.0 (Mac OS X Mail 6.2 \(1499\))
Subject:	Re: cygrunsrv + sshd + rsync = 20 times too slow -- throttled?
From:	Chris Roehrig <chris AT islandmacguy DOT com>
In-Reply-To:	<5e374368-81da-58da-04fc-9131a98871fb@maxrnd.com>
Date:	Wed, 25 Aug 2021 10:24:59 -0700
Message-Id:	<04B6D200-C288-4AA9-90A6-71ECCCA9B888@islandmacguy.com>
References:	<41A583E1-C8E7-42AB-9F24-EEC33A41EC60 AT house DOT org>
	<CAF1jjLs50-aqF9S3_OvBC9kjn9-zFmiCFNDKLFws1b=8=gP=7Q AT mail DOT gmail DOT com>
	<5e374368-81da-58da-04fc-9131a98871fb AT maxrnd DOT com>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
X-Mailer:	Apple Mail (2.1499)
X-Spam-Status:	No, score=-1.9 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS,
	SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.4
X-Spam-Checker-Version:	SpamAssassin 3.4.4 (2020-01-24) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
Errors-To:	cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

It was set to "Programs".    Changing it to "Background services"  didn't make a difference.

TCPOptimizer can adjust 2 registry entries that I think are related to that Windows Setting:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile]
	"NetworkThrottlingIndex"=dword:0000000a
	"SystemResponsiveness"=dword:00000014

	The first rate-limits IP packets; the second reserves a percent (0-100) of CPU scheduling for background tasks.   Changing either of those values made no difference.      I think the CPU scheduling reservation only applies when there's CPU contention (not on an idle system) so I wouldn't expect it to make a difference when CPU/core usage is low.



On Tue Aug 24 2021, at 8:20 PM, Mark Geisert <mark AT maxrnd DOT com> wrote:

> NightStrike via Cygwin wrote:
>> Older versions of windows had a setting to optimize the OS for either
>> background services or foreground applications. One of the things this did
>> was throttle network usage. I don't know if windows 10 has the same setting
>> though.
> 
> Yes, it does.  Getting to it is a pain.  Search the "Settings" thingy for "Advanced system settings".  That will bring up the System Properties dialog you used to be able to get to from the Control Panel.  Click the Advanced tab.  Under Performance, click Settings... .  Click the Advanced tab there.  Right in that dialog there's a Processor Scheduling box where you select for best performance of "Programs" or "Background services".
> 
> It would be interesting to hear what it's currently set to before you try changing it.  Try to keep all your testcases the same so we're dealing with apples to apples.
> 
> ..mark
> 
> -- 
> Problem reports:      https://cygwin.com/problems.html
> FAQ:                  https://cygwin.com/faq/
> Documentation:        https://cygwin.com/docs.html
> Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple


-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -