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A modern runtime for JavaScript and TypeScript.
https://deno.com/
16b7c9cd8d
This PR introduces an optimization to `set_response` to reduce the
overhead for responses with a payload size less than 64 bytes.
Performance gains are more noticeable when `is_request_compressible`
enters the slow path, ie: `-H 'Accept-Encoding: unknown'`
### Benchmarks
```js
Deno.serve({ port: 3000 }, () => new Response("hello"));
```
```
wrk -d 10s --latency -H 'Accept-Encoding: slow' http://127.0.0.1:3000
```
---
**main**
```
Running 10s test @ http://127.0.0.1:3000
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 44.72us 28.12us 3.10ms 97.95%
Req/Sec 112.73k 8.25k 123.66k 91.09%
2264092 requests in 10.10s, 308.77MB read
Requests/sec: 224187.08
Transfer/sec: 30.57MB
```
**this PR**
```
Running 10s test @ http://127.0.0.1:3000
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 42.91us 20.57us 2.04ms 97.36%
Req/Sec 116.61k 7.95k 204.81k 88.56%
2330970 requests in 10.10s, 317.89MB read
Requests/sec: 230806.32
Transfer/sec: 31.48MB
```
|
||
|---|---|---|
| .cargo | ||
| .devcontainer | ||
| .github | ||
| bench_util | ||
| cli | ||
| ext | ||
| runtime | ||
| test_ffi | ||
| test_napi | ||
| test_util | ||
| tools | ||
| .dlint.json | ||
| .dprint.json | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .rustfmt.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| LICENSE.md | ||
| README.md | ||
| Releases.md | ||
| rust-toolchain.toml | ||
Deno
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
Features
- Secure by default. No file, network, or environment access, unless explicitly enabled.
- Provides
web platform functionality and APIs,
e.g. using ES modules, web workers, and
fetch(). - Supports TypeScript out of the box.
- Ships only a single executable file.
- Built-in tooling including
deno test,deno fmt,deno bench, and more. - Includes a set of reviewed standard modules guaranteed to work with Deno.
- Supports npm.
Install
Shell (Mac, Linux):
curl -fsSL https://deno.land/install.sh | sh
PowerShell (Windows):
irm https://deno.land/install.ps1 | iex
Homebrew (Mac):
brew install deno
Chocolatey (Windows):
choco install deno
Scoop (Windows):
scoop install deno
Build and install from source using Cargo:
# Install the Protobuf compiler
apt install -y protobuf-compiler # Linux
brew install protobuf # macOS
# Build and install Deno
cargo install deno --locked
See deno_install and releases for other options.
Getting Started
deno run https://deno.land/std/examples/welcome.ts
Or setup a simple HTTP server:
Deno.serve((_req) => new Response("Hello, World!"));
Additional Resources
- The Deno Manual is a great starting point for additional examples, setting up your environment, using npm, and more.
- Runtime API reference documents all APIs built into Deno CLI.
- Deno Standard Modules do not have external dependencies and are reviewed by the Deno core team.
- deno.land/x is the registry for third party modules.
- Blog is where the Deno team shares important product updates and “how to”s about solving technical problems.
Contributing
We appreciate your help!
To contribute, please read our contributing instructions.