20d1a304b3
timecounter period from 2^32 ns (~4.3s) to 2^41 ns (~36m39s). Some time sharing systems can skip clock interrupts for a few seconds when under load (e.g., if we've recently used more than our fair share of CPU and someone else wants a burst of CPU) and we were losing time in quanta of 2^32 ns due to timecounter wrapping. Increasing the timecounter period up to 2^41 ns is definitely overkill, but we still have microsecond timecounter precision, and anyone using paravirtualized hardware when they need submicrosecond timing is crazy. |
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clock.c | ||
exception.s | ||
locore.s | ||
mp_machdep.c | ||
mptable.c | ||
pmap.c | ||
xen_clock_util.c | ||
xen_machdep.c | ||
xen_rtc.c |