Good question regarding latency. There are two graphs that Maelstrom generates in store/kafka/$TIMESTAMP called latency-raw.png and latency-quantiles.png. Those should give you a better idea of where your latency occurs on different message types.
Mmh, yeah, I saw those. In my humble opinion, there are a bit difficult to read… I mean, compared to having the percentiles being explicit in the outputs compared to the previous challenges. But, alright, thanks for the answer .