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Date: Sat, 8 Jul 2006 07:07:14 -0600
From: "David Mosberger-Tang" <David.Mosberger@acm.org>
To: "Arjan van de Ven" <arjan@infradead.org>
Subject: Re: [PATCH] ia64: change usermode HZ to 250
Cc: "Jeremy Higdon" <jeremy@sgi.com>, "Jes Sorensen" <jes@sgi.com>,
       "Alan Cox" <alan@lxorguk.ukuu.org.uk>,
       "Luck, Tony" <tony.luck@intel.com>, "John Daiker" <jdaiker@osdl.org>,
       "John Hawkes" <hawkes@sgi.com>, "Tony Luck" <tony.luck@gmail.com>,
       "Andrew Morton" <akpm@osdl.org>, linux-ia64@vger.kernel.org,
       linux-kernel@vger.kernel.org, "Jack Steiner" <steiner@sgi.com>,
       "Dan Higgins" <djh@sgi.com>
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Nothing is broken.  Read Alan's statement carefully...

  --david

On 7/8/06, Arjan van de Ven <arjan@infradead.org> wrote:
>
>
> > So does i386 convert the return value of the times(2) call to user
> > hertz?  On IA64, it returns the value in internal clock ticks, and
> > then when a program uses the value in param.h, it gets it wrong now,
> > because internal HZ is now 250.
> >
> > So is times() is broken in IA64, or is this an exception to Alan's
> > statement?
>
> yes it's broken; it needs to convert it to the original HZ (1024) and
> make the sysconf() function also return 1024
>
>
> -
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-- 
Mosberger Consulting LLC, http://www.mosberger-consulting.com/