Monitoring log hangs .
<img width="1018" alt="screen shot 2018-07-06 at 3 31 30 pm" src="https://user-images.githubusercontent.com/2812994/42399559-e332d32c-8133-11e8-9731-9e0f028d94bf.png">


Specially during benchmarking the logging screen hangs the miner keeps on running. 
But no update happens.
Happened more than three times a day so thought should create a issue.

Above screenshot miner and logger are half hour apart.
