From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: rdtsc to mili secs?
Date: 18 Nov 2000 15:48:06 -0800 [thread overview]
Message-ID: <8v74fm$2d7$1@cesium.transmeta.com> (raw)
In-Reply-To: <3A078C65.B3C146EC@mira.net> <20001116115730.A665@suse.cz> <8v1pfj$p5e$1@cesium.transmeta.com> <20001118211349.B382@bug.ucw.cz>
Followup to: <20001118211349.B382@bug.ucw.cz>
By author: Pavel Machek <pavel@suse.cz>
In newsgroup: linux.dev.kernel
> > Actually, on machines where RDTSC works correctly, you'd like to use
> > that to detect a lost timer interrupt.
> >
> > It's tough, it really is :(
>
> Well, my patch did not do that but you probably want lost timer
> interrupt detection so that you avoid false alarms.
>
> But that means you can no longer detect speed change after 10msec:
>
> going from 150MHz to 300MHz is very similar to one lost timer
> interrupt.
>
That's the point.
-hpa
--
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"Unix gives you enough rope to shoot yourself in the foot."
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next prev parent reply other threads:[~2000-11-19 0:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-05 23:09 rdtsc to mili secs? Sushil Agarwal
2000-11-06 0:10 ` Andrea Arcangeli
2000-11-06 0:28 ` Alan Cox
2000-11-06 0:34 ` Andrea Arcangeli
2000-11-06 0:46 ` Alan Cox
2000-11-06 17:17 ` Anton Blanchard
2000-11-06 17:27 ` Alan Cox
2000-11-07 5:00 ` Antony Suter
2000-11-07 6:10 ` H. Peter Anvin
2000-11-07 12:18 ` Alan Cox
2000-11-10 14:42 ` Pavel Machek
2000-11-10 21:38 ` H. Peter Anvin
2000-11-10 22:23 ` Rogier Wolff
2000-11-10 23:00 ` H. Peter Anvin
2000-11-14 21:22 ` Pavel Machek
2000-11-15 21:05 ` H. Peter Anvin
2000-11-16 10:57 ` Vojtech Pavlik
2000-11-16 23:09 ` H. Peter Anvin
2000-11-18 20:13 ` Pavel Machek
2000-11-18 23:48 ` H. Peter Anvin [this message]
2000-11-19 9:21 ` Vojtech Pavlik
2000-11-18 20:12 ` Pavel Machek
2000-11-18 22:13 ` Vojtech Pavlik
2000-11-19 20:24 ` Pavel Machek
2000-11-19 21:46 ` Vojtech Pavlik
-- strict thread matches above, loose matches on Subject: below --
2000-11-06 8:15 ming_l
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