Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/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
Message-Id:	<5.1.0.14.2.20021125185701.02a73ea8@pop3.cris.com>
X-Sender:	rrschulz AT pop3 DOT cris DOT com
Date:	Mon, 25 Nov 2002 19:00:40 -0800
To:	thomas <cygwin AT cygwin DOT com>
From:	Randall R Schulz <rrschulz AT cris DOT com>
Subject:	Re: nice really nice?
In-Reply-To:	<614069953.20021125191423@huno.net>
Mime-Version:	1.0

Thomas,

One thing to keep in mind is that while Unix (and work-alikes) has a -20 
(best scheduling priority) ... +20 (worst priority) range, Windows has only 
the six distinct levels. I don't know how Cygwin maps the Unix nice values 
to the Windows priorities, offhand. Probably it's a linear mapping.

I haven't had a chance to read the information about scheduling in Windows, 
but I will. Thanks for referring me to it.

Randy


At 10:14 2002-11-25, you wrote:

>I'm also wondering what nice really does in cygwin. Look at the
>following test:
>
>$ time mkisofs -J -R -l * 2>/dev/null | nice -19 dd of=/dev/null
>real    0m7.482s
>
>$ time mkisofs -J -R -l * 2>/dev/null | nice -1 dd of=/dev/null
>real    0m7.384s
>
>$ time mkisofs -J -R -l * 2>/dev/null | nice -0 dd of=/dev/null
>real    0m7.419s
>
>$ time mkisofs -J -R -l * 2>/dev/null | nice --1 dd of=/dev/null
>real    1m51.516s
>
>$ time mkisofs -J -R -l * 2>/dev/null | nice --19 dd of=/dev/null
>real    1m51.760s


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -