Benchmarks

These benchmarks should really be taken with a grain of salt, but they aren’t entirely dismissible in my opinion. There are two benchmarks here, and you run them by invoking the shell scripts listed below.

Raw HTML Parsing

Bench raw parsing of HTML (somewhat unfair in Deno DOM’s case because it actually produces a DOM tree)

bash ./bench-parse.sh

Results:

Deno DOM WASM   - time:168.5ms runs:20
Deno DOM Native - time:27.449885150000007ms runs:20
Node.js Parse5  - time:178.78199419998563ms runs:20

Queryable DOM Tree

bash ./bench-dom.sh

Results:

Benchmark: Parse c.html, produce a DOM, then run
querySelectorAll('div[aria-controls^="ot-desc"]')

Deno DOM WASM   - time:174.5ms runs:20
Deno DOM Native - time:29.02453414999993ms runs:20
Node.js JSDOM   - time:492.51481600007975ms runs:20

Machine specs

OS: Ubuntu 20.10 (5.8.0-38-generic x84_64 kernel) CPU:

Model:      AMD Ryzen 5 4500U with Radeon Graphics
L1d cache:  192 KiB
L1i cache:  192 KiB
L2 cache:   3 MiB
L3 cache:   8 MiB