etsysSrvcLvlSystemClockResolution
1.3.6.1.4.1.5624.1.2.39.1.1.2
etsysSrvcLvlSystemClockResolution provides the precision of the
clock used for the measures . The unit is the picosecond. For
example, the clock on an old Unix host might advance only once
every msec, and thus have a resolution of 1 msec. So its
resolution is 1,000,000,000 picosecond and the value of
etsysSrvcLvlSystemClockResolution is 1000000000.