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Date:      Wed, 13 Aug 2003 18:12:09 +0200 (CEST)
From:      Harti Brandt <brandt@fokus.fraunhofer.de>
To:        Steve Ames <steve@virtual-voodoo.com>
Cc:        sparc64@freebsd.org
Subject:   Re: ponderous 'make world' times post GCC 3.3...
Message-ID:  <20030813180823.W97608@beagle.fokus.fraunhofer.de>
In-Reply-To: <001501c361b4$f84e6280$2bd90c42@officescape.net>
References:  <20030807062536.GA68747@dragon.nuxi.com> <p052106c7bb59ce43912c@[128.113.24.47]> <20030812213355.M22214@seekingfire.com> <20030813154823.GA99828@energistic.com> <20030813155523.GB99828@energistic.com> <20030813175634.P97608@beagle.fokus.fraunhofer.de> <001501c361b4$f84e6280$2bd90c42@officescape.net>

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On Wed, 13 Aug 2003, Steve Ames wrote:

SA>
SA>----- Original Message -----
SA>From: "Harti Brandt" <brandt@fokus.fraunhofer.de>
SA>> I have actually two machines and two kernels: one machine runs with
SA>> WITNESS and DIAGNOSTICS and the other without that. On both machines
SA>> the current kernel is three times slower than the old kernel. Of course
SA>> the debugging kernels are even slower than the non-debugging ones. But,
SA>> the three times ratio between old and new kernels is the same on both
SA>> machines.
SA>
SA>Ah. Well that blows my theory :) However... in January my system took around
SA>4 hours to do 'make world' and it still does with today's code (if I don't
SA>have
SA>debug options turned on). So I'm not sure there is a global 3x increase.

Well, you're the 2nd one who reports that nothing has changed. Several
people however report, that they see the 3x increase. And I see it myself,
no matter how often I look at this. Today I tried to build the vinum
module:

gcc-3.3.1	yesterday's kernel	132 + 85 + 20
gcc-3.2.2	yesterday's kernel	131 + 85 + 22
gcc-3.2.2	kernel from June 1st	 52 + 27 +  7

Exactly the same config and the same world (except for gcc).

This is an Ultra10. Perhaps it depends on the sparc model?

harti
-- 
harti brandt,
http://www.fokus.fraunhofer.de/research/cc/cats/employees/hartmut.brandt/private
brandt@fokus.fraunhofer.de, harti@freebsd.org



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