C vs Rust vs Go: performance analysis

Marek Michalik
Jul 17 · 4 min read

The Problem

The Solution

Obvious optimization

O(n) = n
O(n) = 1

Implementation

Let’s run some tests

for i in 0..100000 {
dominant_color::get_colors(&image.raw_pixels());
}
C     14s
Rust 21s
Go 370s

Problem with Go

for i := 0; i < 100000; i++ {
color_extractor.ExtractColors(width, height, image)
}

Final results

C    14s
Rust 21s
Go 34s

Conclusions

Marek Michalik

Written by

Backend Engineer at Brainly

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