From owner-freebsd-current Mon Sep 14 18:20:43 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA03282 for freebsd-current-outgoing; Mon, 14 Sep 1998 18:20:43 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from relay.nuxi.com (nuxi.cs.ucdavis.edu [128.120.56.38]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA03277 for ; Mon, 14 Sep 1998 18:20:42 -0700 (PDT) (envelope-from obrien@NUXI.com) Received: (from obrien@localhost) by relay.nuxi.com (8.8.8/8.6.12) id SAA13000; Mon, 14 Sep 1998 18:20:17 -0700 (PDT) Message-ID: <19980914182017.A12986@nuxi.com> Date: Mon, 14 Sep 1998 18:20:17 -0700 From: "David O'Brien" To: Terry Lambert Cc: freebsd-current@FreeBSD.ORG Subject: Re: Download of FreeBSD 3.0-SNAP Reply-To: obrien@NUXI.com References: <199809141811.LAA18415@usr05.primenet.com> <199809142352.QAA02068@dingo.cdrom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: <199809142352.QAA02068@dingo.cdrom.com>; from Mike Smith on Mon, Sep 14, 1998 at 04:52:18PM -0700 X-Operating-System: FreeBSD 2.2.7-STABLE Organization: The NUXI BSD group X-PGP-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Keyid: 34F9F9D5 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Since it works with bp's, it's clear that it sorts on linear block > offset, which isn't exactly optimal but is less suboptimal than pure > randomness. Sounds like the same performance win you get feeding a super scaler processor code ordered by a VLIW compiler. The super scaler design searches for parallelism among instructions at execution time, and being feed instuctions in a good ILP ordering by a VLIW compiler, of course it finds more. -- -- David (obrien@NUXI.ucdavis.edu -or- obrien@FreeBSD.org) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message