3x for your response, I am a software developer in field of industrial control system. These systems require hard real-time support, even exact temporal behavior. The cache is a major source of uncertainty, is it necessary to disable cache for some critical hard real-time tasks? I am looking forward to your professional adivce. 3x regards arethe
2011/3/6 Philippe Gerum <r...@xenomai.org>: > On Sun, 2011-03-06 at 14:05 +0800, arethe rtai wrote: >> Hello: >> As known, cache can accelerate the memory access, but >> unfortunately, it would decrease the predictability of real-time tasks' >> temporal behaviour. Many tasks of our application prefer >> predictability to the speed of execution. Intel's processors after P6 >> include MTRR and PAT, both the two units can be used to bypass the >> cache. >> I wonder whether Xenomai can bypass the cache, and whether Xenomai >> can manage the MTRR or PAT? > > > No. > >> If the answers are true, how to use the >> function? >> 3x >> arethe >> >> _______________________________________________ >> Xenomai-core mailing list >> Xenomai-core@gna.org >> https://mail.gna.org/listinfo/xenomai-core > > -- > Philippe. > > > _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
