Re: [rtl] substitute to jiffies

[Alain Rolle <Alain.Rolle@rug.ac.be>]

Thank you,

for the record, I have also found a pretty good description of it in
Rubini's Device Drivers book.


Alain.


On Mon, 6 Mar 2000, Kulwinder Atwal wrote:

> 
> 
> "Wayne E. Van Loon Sr." wrote:
> 
> > In my opinion, a better
> > description of the jiffy is that the jiffy is the time of one "time slice"
> > for the scheduler.
> 
> Yes, I was trying to be brief.  The setting of the constant HZ (number
> of jiffies per second) will affect the result.  The most common default
> setting for HZ is 100 which translates into 10 milliseconds.  But many
> using RTL have set HZ to 1000 to get more responsiveness from Linux.
> 
> Also, hrtime is a 64 bit signed value, and a jiffies is a unsigned 32
> bit number.
> 
> - Kal.
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