[rtl] Soft Real Time

2000-06-24 Thread al lykken
I'm involved in a new project where we plan to use dual Power PC Synergy SBCs running Yellow Dog LINUX. Since RT Linux doesn't seem to ready for prime time I have been trying to do deterministic scheduling with the existing system, with some success. So far I: 1.Changed my HZ from 100 to

Re: [rtl] Soft Real Time

2000-06-24 Thread Herman Bruyninckx
On Sat, 24 Jun 2000, Bernhard Kuhn wrote: [...] A year ago, me and some (former) collegues had the following idea: on an SMP machine, Linux could run in non-SMP-mode on one processor, while RTEMS is using the other processor. Depending on the application, the whole RTEMS-stuff would fit into

Re: [rtl] Soft Real Time

2000-06-24 Thread Herman Bruyninckx
On Sat, 24 Jun 2000, Bernhard Kuhn wrote: Herman Bruyninckx wrote: [ Asymetric Multiprocessing with Linux and another RTOS ] Sounds great, for things such as machine control, where you need a known and invarying number of small tasks that just have to run very fast. That´s not the

Re: [rtl] Soft Real Time

2000-06-24 Thread Bernhard Kuhn
Herman Bruyninckx wrote: We have a control problem in which we need a simple controller to run at preferably 30 000 Hz... So, keeping everything in cache is really needed... 30 KHz is ok, as long as some events can be missed or jitters in the range of the period are ok. Otherwise you might

Re: [rtl] Soft Real Time

2000-06-24 Thread yodaiken
On Sun, Jun 25, 2000 at 12:04:36AM +0200, Herman Bruyninckx wrote: On Sat, 24 Jun 2000, Bernhard Kuhn wrote: Herman Bruyninckx wrote: [ Asymetric Multiprocessing with Linux and another RTOS ] Sounds great, for things such as machine control, where you need a known and invarying