Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Subject: Re: nice really nice? From: Robert Collins To: Randall R Schulz Cc: thomas In-Reply-To: <5.1.0.14.2.20021125185701.02a73ea8@pop3.cris.com> References: <5.1.0.14.2.20021125185701.02a73ea8@pop3.cris.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-1o7lDAo7r+Pf1Pg5VRNS" Date: 26 Nov 2002 13:06:33 +1100 Message-Id: <1038276393.23528.366.camel@lifelesswks> Mime-Version: 1.0 --=-1o7lDAo7r+Pf1Pg5VRNS Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2002-11-26 at 14:00, Randall R Schulz wrote: > Thomas, >=20 > One thing to keep in mind is that while Unix (and work-alikes) has a -20=20 > (best scheduling priority) ... +20 (worst priority) range, Windows has on= ly=20 > the six distinct levels. I don't know how Cygwin maps the Unix nice value= s=20 > to the Windows priorities, offhand. Probably it's a linear mapping. >=20 > I haven't had a chance to read the information about scheduling in Window= s,=20 > but I will. Thanks for referring me to it. Windows has (offhand) ~ 30 scheduling levels. It has priority classes, which 'group' processes, and then relative priorities within each class.IIRC you can check sched,cc via CVS to see the actual mapping I used, it's not linear as such, but nearly so. Thomas, those tests show nothing other than the time it takes to push the iso through to a bitbucket. Unless there is serious other load on the CPU, the time *should* be constant. Rob --=20 --- GPG key available at: http://users.bigpond.net.au/robertc/keys.txt. --- --=-1o7lDAo7r+Pf1Pg5VRNS Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQA94tcpI5+kQ8LJcoIRArhOAJ9qQZzK/3dbbpbYpoNQeOtXw1QvIQCdHTwa eC6xAOVPiB4BiABBL0Vd010= =yddo -----END PGP SIGNATURE----- --=-1o7lDAo7r+Pf1Pg5VRNS--