This topic always leads me to think about this great talk from Gil Tene on how NOT to measure latencies (basically, don't use averages!). https://www.youtube.c

This topic always leads me to think about this great talk from Gil Tene on how NOT to measure latencies (basically, don't use averages!). https://www.youtube.com/watch?v=lJ8ydIuPFeU https://www.youtube.com/watch?v=lJ8ydIuPFeU I'm also a huge fan of how Dormando showed latency distributions in one of his recent Memcached Extstore posts. The default is 95th percentile but you can change the percentile to what matters to you (i.e. 99th percentile if you ask me!). Scroll down to see what he did and play with it. https://memcached.org/blog/nvm-multidisk/ https://memcached.org/blog/nvm-multidisk/