[jorangreef]

Fair question!

If you have any contention in your workload, which is typical for OLTP workloads [1], then, per Amdahl’s Law, that portion of the work will dominate, and TB will be orders faster.

For example, if your KV can do high throughput writes (and most can) at low latency then you should be looking at 20-50ms P100s all combined, per 8K transactions, when you’re running at 500K TPS, even with extreme contention up to 90%. Very hard if not impossible to do that if you don’t have TB as part of your stack. At least not with the durability and strict serializability guarantees that TB gives.

[1] Worth watching! https://youtu.be/yKgfk8lTQuE