[PATCH 0/2] Fix BUG3069227: Time discrepancy using oprofile (updated)

[<sur...@am...>]

From: Suravee Suthikulpanit <sur...@am...>

User has reported an issue where the cpu frequency reported by opreport is lower than the actual running frequency.
This becomes an issue when trying to calculate the wall clock time using CPU_CLK_UNHALTED.  The fix is to use the
max freq of the cpu if available.  In theory, the running cpus should be switched to the max frequency by default.

NOTE:

* Patch1: Query maximum cpu frequency from /sys/devices/system/cpu/cpu<n>/cpufreq/cpuinfo_max_freq by default
  (NO CHANGE)

* Patch2: Add comments regarding cpufreq scaling.