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I had to go to the repo to see the benchmarking setup to get an answer. Looks like 3 Kafka nodes.

https://github.com/Vanlightly/openmessaging-benchmark-custom...

Author here. Yes both Kafka and Redpanda were deployed on identical hardware: three i3en.6xlarge.

I'm not sure which of us read it correctly.

I -think- they are saying the original benchmark results done by RedPanda show a 9 node Kafka cluster being beaten by a 3 node RP cluster.

This new benchmark I assume is being done on identical hardware (i.e 3 nodes for both) just with less terrible Kafka settings.

I'm confused because it's never clarified, and it starts with:

> According to their Redpanda vs Kafka benchmark and their Total Cost of Ownership analysis, if you have a 1 GB/s workload, you only need three i3en.6xlarge instances with Redpanda, whereas Apache Kafka needs nine and still has poor performance.

but scanning it again, I think they are in fact doing 3 node vs 3 node benchmark. It's just a bit unclear.

Surely nobody runs 3 Kafka nodes in production, no?

I know of several production clusters at 50m+ ARR companies with three nodes.