A test project to test performance of Java, C and Dart (Flutter) in Android device.
To benchmark the performance, I chose a simple algorithm to calculate nth prime number from stackoverflow and wrote the same algorithm in Java, C and Dart.
The app was tested in both debug and release mode. The results were found to be similar for Java and C in both modes, but it was surprisingly different for Flutter. The time required to calculate the 20000th prime number in my phone (Moto G5 Plus) for different cases are given below:
| Debug Mode | Release Mode | |
|---|---|---|
| Java | 1131 ms | 1128 ms |
| C | 408 ms | 311 ms |
| Dart (Flutter) | 106 ms |
821 ms |
Notes:
- Android NDK has been used to build the source code in C.
- This test reflects the performance only for user-defined functions. The library functions of Android are optimized and most of them are already written in C/C++.