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Date: Sat, 26 Jan 2002 02:36:58 +0000
From: Jamie Lokier <lk@tantalophile.demon.co.uk>
To: yodaiken@fsmlabs.com
Cc: Daniel Phillips <phillips@bonn-fries.net>, Robert Love <rml@tech9.net>,
        george anzinger <george@mvista.com>, Momchil Velikov <velco@fadata.bg>,
        Arjan van de Ven <arjan@fenrus.demon.nl>, linux-kernel@vger.kernel.org
Subject: Re: [2.4.17/18pre] VM and swap - it's really unusable
Message-ID: <20020126023658.A5730@kushida.apsleyroad.org>
In-Reply-To: <E16PZbb-0003i6-00@the-village.bc.nu> <1011650506.850.483.camel@phantasy> <20020121165659.A20501@hq.fsmlabs.com> <E16SqOY-0001mL-00@starship.berlin> <20020124081950.A5668@hq.fsmlabs.com>
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In-Reply-To: <20020124081950.A5668@hq.fsmlabs.com>; from yodaiken@fsmlabs.com on Thu, Jan 24, 2002 at 08:19:50AM -0700
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yodaiken@fsmlabs.com wrote:
> > > 	It has no demonstrated benefits.
> > 
> > Demonstrated to who?  I have certainly demonstrated the benefits to
> > myself, and others have attested to doing the same.
> 
> I've heard similar arguments in favor of aromatherapy and Scientology.
> 
> What's amazing about all the arguments in favor of preemption is that we
> don't see any published numbers of the obvious application: a periodic
> SCHED_FIFO process. We've done these experiments and the results are
> _dismal_. 

Hi Victor,

I am specifically interested in SCHED_FIFO performance (for a software
modem driver).  Can you publish thes results of yours of SCHED_FIFO
performance with & without the preempt patches?

Thanks,
-- Jamie
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