Add stats #2658
Description
continuation of #2546
- tidy up remaining stats (no need for
<00:00, add total size in bytes, etc) - add progress to other uses of
stage.dump - profile
repo.check_modified_graph(),stage.save(),stage.dump()etc to find out what other functions are slow, perhaps add progress for them too- md5sums only take about 10% of the total time. There must be other more time consuming functions