[rtl] Re: real time linux

2000-06-22 Thread Raul Murillo
Hi Hofrat Let's say I have a pendulum and I want to control. I have my algorithm whose parameters may change to tune the system. My idea was to have a small and simple program which would retrieve data from a sensor and send it to a second program running in user-space, which would calculate a

Re: [rtl] rtl_time and HZ

2000-06-20 Thread Raul Murillo
I had the same problem when I tried to measure the lapse of time on sending data from rtl to linux and viceversa thorough FIFO. I was told to change the value HZ in the file param.h and afterwards recompile the kernel. However, having done this the performance seemed not to improve at all. I also

[rtl] performance of RTL

2000-06-20 Thread Raul Murillo
I'm developing a real time control with real time linux. I have two programs: the first one retrieves data and sends parameters to the real time process (runs under rtl), the second one calculates the parameter according to the data retrieved by using an algorithm (runs under linux). My first task