Wolfgang Grandegger wrote:
On 07/07/2004 06:47 PM Paolo Mantegazza wrote:
Wolfgang Grandegger wrote:
Hi Paolo,
when I start the scheduler the following messages are printed:
***** STARTING THE UP REAL TIME SCHEDULER WITH LINUX *****
***** FP SUPPORT AND READY FOR A PERIODIC TIMER *****
***<> LINUX TICK AT 100 (HZ) <>***
***<> CALIBRATED CPU FREQUENCY 33000000 (HZ) <>***
***<> CALIBRATED TIMER-INTERRUPT-TO-SCHEDULER LATENCY 4212 (ns) <>***
***<> CALIBRATED ONE SHOT SETUP TIME 485 (ns) <>***
On the PowerPC arch, they are missleading. Therefore I would propose to
switch to something like:
***** STARTING THE UP REAL TIME SCHEDULER WITH LINUX *****
***** FP SUPPORT AND READY FOR A PERIODIC TIMER *****
***<> LINUX TICK AT 100 (HZ) <>***
***<> TIMER FREQUENCY 33000000 (HZ) <>***
***<> TIMER INTERRUPT-TO-SCHEDULER LATENCY 4212 (ns) <>***
***<> TIMER ONE SHOT SETUP TIME 485 (ns) <>***
Or even remove "TIMER" completely.
What do you think?
Put it in the least misleading way but leave the timer informations please.
I know little about timers on x86. Is the "cpu_freq" really the
frequency the timer runs with on x86?
No, but is the frequency used for timing the oneshot mode when to
measaure time counts.
Paolo.
