Jan Kiszka wrote: > ... > What about other time sources on x86? Which systems already have HPET > these days, and does this source not suffer from frequency scaling? I > once read that HPET is quite easy to program, is this true? IOW, would > it be worth considering to add this to the HAL?
There are actually only few registers: http://www.intel.com/hardwaredesign/hpetspec_1.pdf Even a replacement for the TSC is available ("Main Counter"), but I guess that some effort will be required to replace all direct usages of rdtsc in the current Xenomai code, right? Jan
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