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Deno Benchmarks

As part of Deno's continuous integration and testing pipeline we measure the performance of certain key metrics of the runtime. Click on any data point to view the corresponding commit.

Runtime Metrics

Execution Time

Total time to run a script. Cold startup compiles TypeScript from scratch; warm startup uses cached JS output.

Execution Time (Web Workers)

Total time to run a script using Web Workers.

Thread Count

Number of threads used during execution. Smaller is better.

Thread Count (Web Workers)

Number of threads used with Web Workers. Smaller is better.

Syscall Count

Total syscalls performed when executing a script. Smaller is better.

Syscall Count (Web Workers)

Total syscalls with Web Workers. Smaller is better.

Max Memory Usage

Peak memory usage during execution. Smaller is better.

Max Memory Usage (Web Workers)

Peak memory usage with Web Workers. Smaller is better.

Size

File Sizes

Size of various output files. "deno" is the release binary.

Snapshot File Sizes

Size of V8 snapshot files used for fast startup.

Cargo Dependencies

Number of Rust crate dependencies.

Language Server

LSP Performance

Performance of the Deno language server under different scenarios.