Messages in this thread | | | Date | Wed, 03 Mar 1999 10:15:37 -0500 | From | Sebastien Plante <> | Subject | Real time scheduling and 2.2.2 SMP |
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I have a dual Pentium II 450Mhz with 128M. I tested the real-time scheduling on the kernel 2.2.2 and got unexpected results. I ran the following test program. On a kernel 2.0.36, the process takes all the cpu time on one cpu, but because I have 2 cpu, the computer sill responds very well. If I do the same test on an kernel 2.2.2, the computer reacts like I would have only one cpu. TOP shows that the other cpu is 100% idle. Has someone ever had the same problem?
#include <sched.h> main() { struct sched_param sparam;
sparam.sched_priority = 99; sched_setscheduler(0,SCHED_FIFO,&sparam); while(1){} }
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