Re: [RFC][PATCH] linux-2.5.70_btime-fix_A0

From: jw schultz (jw@pegasys.ws)
Date: Tue Jun 03 2003 - 21:25:12 EST

On Tue, Jun 03, 2003 at 04:00:59PM -0700, john stultz wrote:
> All,
>
> Since jiffies didn't necessarily start incrementing at a second
> boundary, jiffies/HZ doesn't increment at the same moment as
> xtime.tv_sec. This causes one second wobbles in the calculation of btime
> (xtime.tv_sec - jiffies/HZ).
>
> This fix increases the precision of the calculation so the usec
> component of xtime is used as well. Additionally it fixes some of the
> non-atomic reading of time values.
>
>
> This is a fix for bugme bug #764.
> http://bugme.osdl.org/show_bug.cgi?id=764
>
>
> Let me know if you have any comments

Might it not be cheaper to start jiffies at the 1 second
boundary or with a value that simulates that? 

-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
	email address:		jw@pegasys.ws

		Remember Cernan and Schmitt
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