https://github.com/msink/kotlin-pi

Performance test: computes n decimal digits of π
https://github.com/msink/kotlin-pi

kotlin kotlin-native

Last synced: 5 months ago
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Performance test: computes n decimal digits of π

• Host: GitHub
• URL: https://github.com/msink/kotlin-pi
• Owner: msink
• License: apache-2.0
• Created: 2017-11-13T13:32:22.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2018-04-28T08:02:45.000Z (over 7 years ago)
• Last Synced: 2025-03-29T19:11:18.498Z (9 months ago)
• Topics: kotlin, kotlin-native
• Language: C
• Homepage:
• Size: 92.8 KB
• Stars: 4
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Testbench for [Kotlin/Native EAP](https://github.com/JetBrains/kotlin-native)

[![Build status](https://ci.appveyor.com/api/projects/status/github/msink/kotlin-pi?svg=true)](https://ci.appveyor.com/project/msink/kotlin-pi)

[![Build Status](https://travis-ci.org/msink/kotlin-pi.svg?branch=master)](https://travis-ci.org/msink/kotlin-pi)

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.