From owner-freebsd-smp  Tue Dec  3 06:05:12 1996
Return-Path: owner-smp
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id GAA16059
          for smp-outgoing; Tue, 3 Dec 1996 06:05:12 -0800 (PST)
Received: from gargoyle.bazzle.com (gargoyle.bazzle.com [206.103.246.190])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id GAA16048
          for <smp@freebsd.org>; Tue, 3 Dec 1996 06:05:04 -0800 (PST)
Received: from gargoyle.bazzle.com (localhost [127.0.0.1]) by gargoyle.bazzle.com (8.8.3/8.6.12) with SMTP id JAA04237 for <smp@freebsd.org>; Tue, 3 Dec 1996 09:05:10 -0500 (EST)
Date: Tue, 3 Dec 1996 09:05:10 -0500 (EST)
From: "Eric J. Chet" <ejc@gargoyle.bazzle.com>
To: smp@freebsd.org
Subject: performance
In-Reply-To: <Pine.BSF.3.95.961202234646.1337C-100000@gargoyle.bazzle.com>
Message-ID: <Pine.BSF.3.95.961203085847.4147A-100000@gargoyle.bazzle.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-smp@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk


On Mon, 2 Dec 1996, Eric J. Chet wrote:

> Kernel compile times:
> 
> smp-kernel compiled under -current (as of 12/01)
> >time make
> > 314.39s real  282.00s user    18.72s system
> 
> smp-kernel compiled under -smp-current
> >time make -j8
> > 213.57s real  338.08s user    77.12s system
> 

Hello
	Just looking at the numbers again, food for thought.

(u+s)/r == utilization.

-current
(282.00+18.72)/314.39 = .96

-smp-current
(338.08+77.12)/213.57 = 1.94 !!!  very good!

I know there is a lot of development work to be done, but -smp is 
definitly on the right path.

                                              Eric J. Chet
                                               - ejc@bazzle.com