Originally, acrntrace stores cpu frequency in output file and use it for time-based
analysis. Actually, we should use TSC frequency instead of cpu frequency.
This patch change to using TSC frequency for time-based analysis and introduce
an option "-f --frequency" to let user configure TSC frequency.
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>