From: Arjan van de Ven <arjanv@redhat.com>
To: Frank van Maarseveen <frankvm@xs4all.nl>, linux-kernel@vger.kernel.org
Subject: Re: 2.4.23 can run with HZ==0!
Date: Mon, 29 Dec 2003 13:52:56 +0100 [thread overview]
Message-ID: <20031229125256.GA28065@devserv.devel.redhat.com> (raw)
In-Reply-To: <20031229125240.GA4055@janus>
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On Mon, Dec 29, 2003 at 01:52:40PM +0100, Frank van Maarseveen wrote:
> On Mon, Dec 29, 2003 at 10:45:27AM +0100, Arjan van de Ven wrote:
> >
> > not all motherboards can deal with HZ=1000.... seems yours is one of
> > thise.
>
> But it seems to work. I would expect it to fail quite soon right at or after
> boot, not after a day once every few weeks (assuming it was the cause).
>
> > your patch is *highly* inadequate to get HZ=1000 working well in 2.4....
> > it needs to be about 10x bigger with fixing more userspace api's...
>
> Can you give me an example?
>
> HZ for x386 is 100 by definition and there aren't that many system calls
> and /proc files which expose jiffies to userspace.
there are quite a few you missed; scsi ioctls is one, firewall rules are
another.... there's a long list (2.6 has most if not all of them fixed)
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next prev parent reply other threads:[~2003-12-29 12:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-28 23:05 2.4.23 can run with HZ==0! Frank van Maarseveen
2003-12-29 9:45 ` Arjan van de Ven
2003-12-29 12:52 ` Frank van Maarseveen
2003-12-29 12:52 ` Arjan van de Ven [this message]
2003-12-29 15:26 ` Rob Love
2003-12-29 15:54 ` Frank van Maarseveen
2003-12-29 15:54 ` Arjan van de Ven
2003-12-29 16:05 ` Rob Love
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