A couple recommendations for your visualization: 1) More fine-grained bins to help show the shape of the distribution (are there performance cliffs?). Try usin

A couple recommendations for your visualization: 1) More fine-grained bins to help show the shape of the distribution (are there performance cliffs?). Try using vertical lines to denote % cutoffs. 2) Given the wide range between your bins, a log scale might be a good idea instead of raw frequency. 3) Try some other method of visualization. I'm not sure a histogram is useful for what you're trying to convey, at least the way it's being used here. As it stands, the visual information is so dominated by the 99.5% case that the plots don't help illustrate your tabular data.