Sample tries to estimate maximum number of messages that can be
logged. It was using two system cycles and counting number of
messages logged in that window. It did not take into account the
fact that clock frequency may vary and logging speed also varies
(especially if LOG_IMMEDIATE is enabled). Presented results may
be faulty and misleading.
Fix is attempting to adjust window size to increase precision of
the measurement.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
a7725aef0e