> I am working with computers for 25 years now. I know
> the "ticks" of the DOS timer (18 Hz), but I don't expect the Linux "ticks"
> to be the same (because Linux is a 100% different source,
> and because I think that no intelligent brain will use such a
> big time unit in a multitasking system).
> The word "jiffies" is totally meaningless to me.
A jiffy is indeed the Linuxian equivalent of a tick.
Its length is dependent on the architecture.
On Alpha and ,IIRC, ia64 it is 1/1024s. On all other architectures it is
1/100s. The kernel gives you the corresponding frequency as HZ through the
standard kernel includes.
Please uses this and don't expose time measured in jiffies to user space.
> Shure, I could "do my homework" and find out these things by
> looking around deeply in the source code. But I simply don't
> *want* to spend my time with such tasks, because I know I am
> in a unique position to write a linux device driver for a set of devices
> which no other person on the world can do because of lack of
> information.
Which device ?
HTH
Oliver
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