An SMP system with lots of PCI bus activity, can have serious
and sometimes unacceptable RT task jitter for high rate (3000 - 4000Hz)
tasks doing data acquisition. Since the CPUs share the PCI bus, the
Linux kernel (running on one CPU) can interfere with RT deadlines
on the other CPU. One way to minimize this is to force designated irqs to
be handled on a specified CPU.
I realize that the 2.3.x and 2.4pre kernels have this capability,
however I am stuck with 2.2.x. Is there a way to enforce this behavior
in RTLinux?
Wm
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