> All that said, it's interesting to see that a) duplicity seems slow, and b) very consistent in terms of speed. I wonder if there's some low-hanging fruit for

> All that said, it's interesting to see that a) duplicity seems slow, and b) very consistent in terms of speed. I wonder if there's some low-hanging fruit for optimization there. Duplicity is classic delta-backup. It always reads all files and calculates a delta to a different version of the file, hence the fairly consistent performance. Performance of deduplicating archivers is more difficult to predict.