At 10:02 AM 14-05-99 -0700, you wrote:
>If anyone's interested, my RTlinux machine (PII) just passed the
>expiration of its jiffies. I have HZ defined as 1000, so jiffies ran out
>after 49.7 days.
>
>Some Linux processes exited at the transition (some xterms, virtual
>terminal logins) but X, fvwm, and nedit, and all my daemons are still
>running fine. My process that was _using_ a RTLinux module exited, but
>my RTlinux modules (rtl_fifo, Daqcard700) still work fine.
>
Hi Steve:
Could you explain why or what are the advantages to set HZ at 1000. I did
some tests a while back with HZ=1000 and rtl_fifo. The gain in throuput
between RTLinux and user space seemed to be marginal. Setting the user
space scheduler parameter to SCHED_FIFO seemed very important.
Regards
_______________________________________________________
Pierre Cloutier
Tel: (450)-659-9186
Fax: (450)-659-0014
POSEIDON CONTROLS INC
_______________________________________________________
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