I didn't but I would be interested. FWIW, here's the FAQ on performance with durability enabled: How's performance? Read performance should be the same. Writ

I didn't but I would be interested. FWIW, here's the FAQ on performance with durability enabled: How's performance? Read performance should be the same. Write performance should be very good but there is some overhead over the non-durable version as the journal files must be written. If you find a case where there is a large difference in performance between running with and without --dur, please let us know so we can tune it. Additionally, some performancing tuning enhancements in this area are already queued for v1.8.1 and beyond.