Test purpose
Test the performance of EMQX Enterprise single node in a scenario of 100,000 concurrent connections and saving 100,000 QoS 1, payload 200B messages per second to Cassandra, and get the performance indicators, such as response time, CPU and memory usage.
Test config and tools
Test environment: VPC of Public Cloud Beijing 4 Test tool: XMeter Enterprise v3.2.0
Configuration of EMQX, Cassandra, and testers
Conclusion
As shown in the above results, the EMQX on a 32C64G machine can support 100,000 concurrent connections and 100,000 messages with QoS 1 and payload of 200B per second persisted to Cassandra through HTTP. All messages are written to the database in real time. During the traffic period, the CPU user stabilized at around 57%, and the average of CPU idle is 25%. Memory usage is stable. The average response time of publish is at the level of millisecond.