# Scheduling Window Every time _Elektron_ switches to a different scheduling policy, the size of the scheduling window and the name of the scheduling policy is logged. The logs are written to a file named _\<logFilePrefix\>\_\<timestamp\>\_schedWindow.log_, where * _logFilePrefix_ is the prefix provided using the `-logPrefix` option. * _timestamp_ corresponds to the time when _Elektron_ was run. The format of the data logged is as shown below. ``` <yyyy/mm/dd> <hh:mm:ss> <sched window size> <sched policy name> ```