From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Tony Luck" <tony.luck@intel.com>
Date: Sat, 08 Jul 2006 02:51:52 +0000
Subject: Re: [PATCH] ia64: change usermode HZ to 250
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To: Jeremy Higdon <jeremy@sgi.com>
Cc: Arjan van de Ven <arjan@infradead.org>, Jes Sorensen <jes@sgi.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>, John Daiker <jdaiker@osdl.org>, John Hawkes <hawkes@sgi.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>

> 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?

The Linux man page for times(2) specifically says "ticks" and refers
to sysconf for how to determine how long a "tick" is.  So ia64 matches
the man page.  Dunno if that matches POSIX though.

-Tony