Date: Wed, 12 Apr 2006 00:03:26 -0400 From: Kris Kennaway <kris@obsecurity.org> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: freebsd-stable@freebsd.org Subject: Re: swap performance under 6.1 Message-ID: <20060412040326.GA94545@xor.obsecurity.org> In-Reply-To: <1144795412.81364.18.camel@localhost> References: <1144795412.81364.18.camel@localhost>
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--PNTmBPCT7hxwcZjr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 11, 2006 at 10:43:32PM +0000, David E. Cross wrote: > I saw under http://www.freebsd.org/releases/6.1R/todo.html that swap > performance under 6.x is slower then 4.X, and this is listed as "not > done". >=20 > I noticed that 6.1 seemed to be a dog, but 6.0 I thought was better. As > a test I installed 6.0 and 6.1 in parallel on my laptop with identical > ports trees (and packages) and 6.0 does feel a lot more responisve to > swapping; I would be eager to help track this down if someone could give > me some pointers. If I have to _guess_ as to a problem it would seem > like some of the scheduling priorities changed. (this is with GENERIC > under 6.0 and 6.1, this is with 6.1-PRERELEASE from April 5; I can CVSUP > to the latest if people think things have changed.) I didn't think this was a 6.1 regression compared to 6.0, but 6.x compared to 4.x. It would be good to try and quantify any performance differences here - so far it's just a bunch of people's subjective opinions (including mine) after upgrading from 4.x. Kris --PNTmBPCT7hxwcZjr Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD8DBQFEPHwNWry0BWjoQKURAozMAKC4vOPs90zCpMAJV7rlj59R5k6+3QCfZ60H Z2c83lyZHYjAjKiz3ZwDDsk= =H74H -----END PGP SIGNATURE----- --PNTmBPCT7hxwcZjr--
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