Benchmarks

This page contains all kinds of numbers. When comparing to other implementations, we will use the Hyperfine tool. Otherwise, the internal benchmark tool will be used.

Hello, World

echo "Hello, World!"

Done in 353 microseconds and 138 nanoseconds

Memory usage watch

Memory optimization is important, that's why Bro always tries to keep its memory footprint as low as possible.
Let's compare the memory usage of watch command for 1.572.876 lines of

.btn
  background: yellow

	Bro	Dart Sass
⏲️	262,1 kB	307,9 MB
💾	482,0 MB	658,0 MB
🔄	yes	no

⏲️ When idle
💾 When saving...
🔄 Release Memory back to OS

Boot time

Runs: once

.a
  font-style: bold

.b
  @extend .a
  font-size: 12px

Results

Benchmark 1: ./dart sass.snapshot test.sass:test.css --no-source-map --style=compressed
  Time (abs ≡):        193.6 ms               [User: 183.7 ms, System: 43.9 ms]
 
Benchmark 2: bro test.sass --minify
  Time (abs ≡):          1.5 ms               [User: 0.0 ms, System: 1.7 ms]
 
Benchmark 3: sassc test.sass test.css --style=compressed
  Time (abs ≡):          1.9 ms               [User: 1.9 ms, System: 0.0 ms]
 
Summary
  'bro test.sass --minify' ran
    1.32 times faster than 'sassc test.sass test.css --style=compressed'
  131.36 times faster than './dart sass.snapshot test.sass:test.css --no-source-map --style=compressed'

Versions

• Bro 0.1.1
• Dart Sass 1.58.1
• SassC 3.5