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Re: [PATCH] spinlock metering (2.3.42)

To: Linus Torvalds <torvalds@xxxxxxxxxxxxx>
Subject: Re: [PATCH] spinlock metering (2.3.42)
From: Peter Rival <frival@xxxxxxxxxxx>
Date: Wed, 09 Feb 2000 08:19:42 -0500
Cc: John Hawkes <hawkes@xxxxxxx>, linux-kernel@xxxxxxxxxxxxxxxx, linux-smp@xxxxxxxxxxxxxxxx, lockmeter@xxxxxxxxxxx
Organization: Tru64 QMG Performance Engineering
References: <Pine.LNX.4.10.10002081939001.766-100000@penguin.transmeta.com>
Sender: owner-lockmeter@xxxxxxxxxxx
Linus Torvalds wrote:

> On Tue, 8 Feb 2000, John Hawkes wrote:
> >
> > Please consider this SMP i386 patch against 2.3.42 to add a "spinlock
> > metering" enhancement.  This patch is also found at:
> >     http://oss.sgi.com/projects/lockmeter/download/
>
> Mind showing us an example of real-world usage and results? I'm loathe to
> apply this along with all the other changes I have pending, but I'd like
> to know how it looks and what the results are under some real usage, just
> as an example..?
>

Not to ask a stupid question, but what type of "real-world usage" would you
like to see?  I did most of the Alpha work (yes John I still owe you an
update - in your inbox by end of the day) so I have scads of example outputs
under various loads, but almost all of them are benchmark-driven.  If there
is anything of that ilk that would be remotely interesting to you, let me
know and I'll send you what I have (or generate a new one).

 - Pete


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