From: Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>
To: Matthew Wilcox <willy-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
Cc: "Moore,
Robert" <robert.moore-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: [PATCH] Stall semantics
Date: Wed, 1 Oct 2003 12:45:32 -0700 (PDT) [thread overview]
Message-ID: <20031001124334.X85655@root.org> (raw)
In-Reply-To: <20031001185524.GX24824-+pPCBgu9SkPzIGdyhVEDUDl5KyyQGfY2kSSpQ9I8OhVaa/9Udqfwiw@public.gmane.org>
On Wed, 1 Oct 2003, Matthew Wilcox wrote:
> > > I think the current ACPI behaviour is probably adequate -- accommodate
> > > incopetent BIOS writers up to a point, then sleep, and damn them anyway.
> >
> > It damns us OS vendors a different way in that we get unacceptably long
> > idle spin loops on some machines. Spinning for 1000 us is not correct any
> > way you interpret the standard.
>
> You have a machine which isn't able to stall for 1 millisecond?
The performance loss becomes more noticable when run repeatedly. A single
1 ms stall is not horrible. In any case, my latter statement is the
point.
-Nate
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next prev parent reply other threads:[~2003-10-01 19:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-30 22:04 [PATCH] Stall semantics Moore, Robert
[not found] ` <D3A3AA459175A44CB5326F26DA7A189C1C3DAF-sBd4vmA9Se58QrAoInS571DQ4js95KgL@public.gmane.org>
2003-10-01 16:59 ` Nate Lawson
[not found] ` <20031001093943.J85056-Y6VGUYTwhu0@public.gmane.org>
2003-10-01 17:16 ` Matthew Wilcox
[not found] ` <20031001171657.GW24824-+pPCBgu9SkPzIGdyhVEDUDl5KyyQGfY2kSSpQ9I8OhVaa/9Udqfwiw@public.gmane.org>
2003-10-01 17:27 ` Nate Lawson
[not found] ` <20031001101854.J85056-Y6VGUYTwhu0@public.gmane.org>
2003-10-01 18:55 ` Matthew Wilcox
[not found] ` <20031001185524.GX24824-+pPCBgu9SkPzIGdyhVEDUDl5KyyQGfY2kSSpQ9I8OhVaa/9Udqfwiw@public.gmane.org>
2003-10-01 19:45 ` Nate Lawson [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-10-03 20:23 Moore, Robert
[not found] ` <D3A3AA459175A44CB5326F26DA7A189C1C3DD1-sBd4vmA9Se58QrAoInS571DQ4js95KgL@public.gmane.org>
2003-10-03 20:28 ` Matthew Wilcox
2003-10-03 20:49 ` Nate Lawson
2003-09-30 21:38 Moore, Robert
[not found] ` <D3A3AA459175A44CB5326F26DA7A189C1C3DAB-sBd4vmA9Se58QrAoInS571DQ4js95KgL@public.gmane.org>
2003-09-30 21:45 ` Nate Lawson
2003-09-30 19:37 Nate Lawson
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