This Unity project is dedicated to comparing data-oriented design and various Entity Component System (ECS) libraries in the context of rapid prototyping.
The implementations emphasize simplicity and productivity over highly optimized, boilerplate heavy solutions.
Rendering systems are currently GameObject-based and slow, but can be disabled by pressing the space bar.
- DOD (inspired by Combat Bee Benchmarks)
- Bursted DOD
- AoS DOD (array of structs architecture)
- Bursted AoS DOD
- DefaultECS
- Arch
- Unity ECS
Below is the performance comparison table. All values are in milliseconds.
| Solution | Median | Mean | Min | Max | Range |
|---|---|---|---|---|---|
| AoS DOD | 0.87 | 0.98 | 0.50 | 8.27 | 7.77 |
| Arch | 0.93 | 1.02 | 0.73 | 11.41 | 10.68 |
| Bursted AoS DOD | 0.90 | 1.02 | 0.88 | 19.24 | 18.36 |
| Bursted DOD | 0.90 | 0.96 | 0.87 | 2.03 | 1.16 |
| DefaultECS | 0.90 | 1.09 | 0.76 | 33.35 | 32.59 |
| DOD | 0.88 | 0.93 | 0.72 | 2.27 | 1.55 |
| Unity ECS | 0.90 | 0.96 | 0.84 | 1.85 | 1.01 |
Test Configuration:
- CPU: AMD Ryzen 7 5800X
- GPU: GTX 1070
- Rendering systems: Disabled
- Build: Development Build
It would be awesome if ECS Performance Comparisons could make a more fair and comprehensive comparison between different data-oriented game development approaches in the future.
Take a look at our issues page if you would like to participate in working towards this goal!