Sorting Algorithm
Compare Quick Sort performance between JavaScript and WebAssembly on large datasets.
Matrix Multiplication
Intensive computation comparing matrix operations in JavaScript vs WASM.
Image Processing (Grayscale Filter)
Apply filters to images and compare pixel manipulation performance.
Performance Comparison Chart
Visual comparison of execution times across all benchmarks.
How WebAssembly Achieves Better Performance
| Feature | JavaScript | WebAssembly |
|---|---|---|
| Compilation | JIT (Just-In-Time) compilation | AOT (Ahead-Of-Time) to bytecode |
| Type System | Dynamic typing with runtime checks | Static typing, no runtime overhead |
| Memory | Garbage collected, automatic | Linear memory, manual control |
| Optimization | Requires warm-up, deoptimization possible | Fully optimized on load |
| Speed | Fast, but interpreter overhead | Near-native (1.5x - 2x slower than C++) |
// WebAssembly is compiled from languages like C, C++, or Rust
// Example: Rust function compiled to WASM
#[no_mangle]
pub extern "C" fn quicksort(arr: *mut i32, len: usize) {
// Highly optimized sorting algorithm
// Compiles to efficient machine code
// No garbage collection overhead
// Direct memory access
}
// JavaScript must interpret or JIT compile at runtime
// WASM arrives pre-compiled and ready to execute