Quantified Self and Meditation I've looked around here for things related to this but keep coming up dry... 

As is fairly common these days, I've been tracking/logging a lot of different things over the past several years such as my diet,  exercise, certain specific activities or actions taken etc. 

I'm curious to hear opinions/advice and if anyone is aware of any references in the suttas on the topic of tracking and logging each time you sit &amp; the duration of the sit. Particularly when establishing or modifying a  habit, I've found logging to be extremely helpful --> but at times the idea of logging my sits also seems counter to the teachings and especially counter to "just being."

Are there any references in the canon or other teachings that might point to or be a helpful guide in this area?
Nava Sutta

towards the end of the sutta, Buddha talked about daily progress of Dharma development.  My take on it, it is hard to track quantifiable progress daily.  You just know.  Though the sutta talks about effluents in general, it might be applicable to meditation as well.   


  Just as when a carpenter or carpenter's apprentice sees the marks of
  his fingers or thumb on the handle of his adze but does not know,
  'Today my adze handle wore down this much, or yesterday it wore down
  that much, or the day before yesterday it wore down this much,' still
  he knows it is worn through when it is worn through. In the same way,
  when a monk dwells devoting himself to development, he does not know,
  'Today my effluents wore down this much, or yesterday they wore down
  that much, or the day before yesterday they wore down this much,'
  still he knows they are worn through when they are worn through.