After updating to OSX 10.10.1 my mid 2010 macbook became very slow. Looking at my System Logs I found the following messages repeated over and over and still continuing:
11/20/14 8:10:53.608 AM Solar Service[518]: End of data
11/20/14 8:10:53.608 AM Solar Service[518]: Event = 2 device index = 2
11/20/14 8:10:53.626 AM Solar Service[518]: Input data callback for device 0x68cc0
11/20/14 8:10:53.626 AM Solar Service[518]: End of data
11/20/14 8:10:53.626 AM Solar Service[518]: Event = 2 device index = 2
11/20/14 8:10:53.627 AM Solar Service[518]: Input data callback for device 0x68cc0
11/20/14 8:10:53.627 AM Solar Service[518]: End of data
Logitech’s Solar Service app was printing a lot of messages. Not sure if this was causing the slowness, but it definitely isn’t good. There is no fix for this, just need to ignore the log messages. Here is how to do it: