Testbench for Kotlin/Native EAP
The original pi.c was taken from http://bellard.org/pi/pi.c (added a plain loop to calculate digits from 1 to n instead of digits around n-th)
Computing 1000 decimal digits of π, average time on 20 runs:
| C | 6.8 sec |
| Kotlin/Native interop with C | 6.8 sec |
| Kotlin/Native 0.7 EAP | 6.9 sec |
| Kotlin/Native 0.6.2 EAP | 9.3 sec |
| Kotlin/Native 0.6 EAP | 10.2 sec |
| Kotlin/Native 0.4 EAP | 11.4 sec |
Result - performance in this test is almost identical, Kotlin is approx. 2% slower.
But it is EAP, so even that 2% may be fixed in next versions.