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InfluxDB
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The Aerospike ACT benchmarking tool characterizes flash devices on their latency under a fixed read/write profile. It won't tell you how fast your device is, it will tell you if a workload runs under a certain latency bound.
https://docs.aerospike.com/server/operations/plan/ssd/ssd_ce...
https://github.com/aerospike/act
If you set
max-lag-sec: 0
This use of dt, etc, is pretty cool, and I understand the point of this this blog entry was an exploration of those tool.
But in the wider world of SSD performance, you're going to want more. fio (written by Jens Axboe, who's responsible for a lot of the I/O subsystem in Linux) is the standard tool used to do benchmarking, has tons of options to control I/O mix and parallelism, captures both thruput and latency numbers, with lots of switches to control exactly what data is collected. https://github.com/axboe/fio
"Something weird going on with the 1K bucket landing at the bottom." The SSD's Flash Translation Layer will occasionally do garbage collection, leading to the periodic extreme long latency outlier. Different SSDs will have different FTL algorithms, different overprovisioning, different internal parallelism, etc, so it can be very tricky predict actual real-life performance. https://en.wikipedia.org/wiki/Flash_memory_controller