Re: [PATCH] ia64: change usermode HZ to 250

From: David Mosberger-Tang <>
Date: 2006-07-12 12:02:37
On 7/11/06, Jeremy Higdon <> wrote:

> Okay.  So what do you think about changing the value in param.h from
> 1024, so that it matches the new common value of 250, or is it best
> just to leave it at 1024 and let applications that use it get the wrong
> result?

In my opinion, HZ needs to be a constant, since otherwise you could
break perfectly fine existing code (e.g., code which statically
initializes a variable with HZ and then picks up the correct frequency
from sysconf) and if you have to pick a particular constant, it seems
reasonable to me to pick the most commonly used frequency (which
appears to be 250Hz at the moment).

Mosberger Consulting LLC,
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Received on Wed Jul 12 12:03:15 2006

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