I read that on arm there was a set of patches for using a single virtual adress space, ( ie. all processes live in the same mapping so to speak , but still protected ), which greatly reduced context switching time on that platform, does anyone know if the same would be true for x86 ( maily x86_64 ). I believe the main gain was in not needing to invalidate the caches or something like that, it came to mind after seeing a paper on uClinux with rt versus regular linux and the latency times ? I have been googling a bit but I not up to date on cache & memory architecture on both platforms. It's easy to se that uClinux would have an advantage :-D ... no TLB and such, only directly mapped memory. But would a single adress space for all processes have the same effect ? Just curious .... / regards, Lars Segerlund. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
