Zeebe is designed for performance, applying the following design principles:
- Batching of I/O operations
- Linear read/write data access patterns
- Compact, cache-optimized data structures
- Lock-free algorithms and actor concurrency (green threads model)
- Broker is garbage-free in the hot/data path
As a result, Zeebe is capable of very high throughput on a single node and scales horizontally (see this benchmarking blog post for more detail).