From: Billy Biggs <vektor@DIV8.NET>
To: linux-sound@vger.kernel.org
Subject: Re: HZ > 100 overhead
Date: Wed, 27 Oct 1999 18:55:29 +0000 [thread overview]
Message-ID: <marc-linux-sound-94105121607896@msgid-missing> (raw)
In-Reply-To: <marc-linux-sound-94104909204283@msgid-missing>
On Wed, 27 Oct 1999 est@hyperreal.org wrote:
> Paul Barton-Davis discourseth:
> > >
> > >Wouldn't you say that an HZ > 100 kernel is the cleanest solution?
> >
> > its the cleanest, but not the best. HZ = 1000 adds about 8% overhead
> > to IRQ processing *all the time*.
>
> Are you *sure* about this? I seem to remember there was some debate
> about that figure on linux-kernel.
Just to add to the confusion, I remember that this only adds significant
overhead on older machines. Regardless, a higher HZ value should be
standard, and switching back to a lower one (100) should be simply a
kernel config option.
This is all pretty controversial though.
#demoscene on irc.openprojects.net for people who support this idea. :)
#linux on linuxnet for some people who don't support this idea. :)
--
Billy Biggs vektor@div8.net
http://www.div8.net/billy wbiggs@uwaterloo.ca
next prev parent reply other threads:[~1999-10-27 18:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-10-27 17:42 HZ > 100 overhead est
1999-10-27 18:31 ` Paul Barton-Davis
1999-10-27 18:55 ` Billy Biggs [this message]
1999-10-27 20:39 ` Benno Senoner
1999-10-27 23:59 ` Paul Barton-Davis
1999-10-28 0:16 ` Benno Senoner
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