Re: [PATCH] HZ==100 assumptions
Pauline Middelink (middelin@polyware.nl)
Wed, 28 Jul 1999 14:08:33 +0200
On Wed, Jul 28, 1999 at 12:08:17PM +0100, Riley Williams wrote:
> If a jiffie is indeed 18.2ms then HZ/100 is a good approximation
> to HALF a jiffie and HZ/50 a good approximation to one jiffie.
>
> However, the standard used by MSDOS (which I assume is what you're
> referring to) is for the clock to tick ~18.2 times per second (to
> be more accurate, 65536 ticks per hour), in which case the correct
> definition would be that a jiffie is 5*HZ/91 and it can be
> approximated by HZ/18 - which is a long way from HZ/100 !!!
Oh, ok. Than perhaps we need to investigate what the original
author wanted, just a short delay (HZ/100 is good enough) or
indeed 1 jiffie or HZ/18. My feeling is that 10ms is good
enough...
Met vriendelijke groet,
Pauline Middelink
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