This project demonstrates performance difference between Kotlin and C++ implementations regarding SQLite operations on iOS.
It contains Kotlin Multiplatform Project including SQLDelight and an Swift XCode project with framework containing C++ SQLite wrapper (which also includes Objective C wrapper for Swift - C++ interop).
Both Kotlin and C++ use the same SQLChipher 3.4.2 linked to XCode project via Cocoapods.
Performance test includes bulk inserts of 100 000 entities (using INSERT) and reading them into native structures afterwards (using SELECT)
| Op | Kotlin | C++ |
|---|---|---|
INSERT |
~17sec | ~3sec |
SELECT |
~3sec | ~0.4sec |
| Op | Kotlin | C++ |
|---|---|---|
INSERT |
~4.7sec | ~0.75sec |
SELECT |
~0.77sec | ~0.15sec |