Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt

[George Anzinger]

Lee Revell wrote:
> On Wed, 2005-07-13 at 14:16 -0700, Chris Wedgwood wrote:
>
> > Both can be detected from you .config and we could see HZ as needed
> > there and everyone else could avoid this surely?

> Does anyone object to setting HZ at boot?  I suspect nothing else will
> make everyone happy.
This will really mess up the jiffie_to_* and *_to_jiffie conversions.  They rely 
in a rather large way on the complier doing all the heavy lifting.  If HZ is a 
variable we introduce a LOT of runtime overhead here.  (Try make kernel/itimer.i 
and look for jiffies_to_t* and friends.)


--
George Anzinger   george@xxxxxxxxxx
HRT (High-res-timers):  http://sourceforge.net/projects/high-res-timers/
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