# smallnest/C1000K-Servers

:zap: High performance websocket servers implemented by Spray-can, Netty, undertow, jetty, Vert.x, Grizzly, node.js and Go. It supports 1,200,000 active websocket connections

Repository: https://github.com/smallnest/C1000K-Servers
Canonical: https://ross.abutalabs.com/products/c1000k-servers
Language: Scala
License Family: other
Archived: true
Last push: 2016-08-16T06:53:18+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4121, "days_push": 3669, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1504, forks 347 (observed 2026-08-28T04:04:54.814906+00:00)

## What it is
A collection of eight high-performance WebSocket server implementations (Spray-can, Netty, Undertow, Jetty, Vert.x, Grizzly, Node.js, Go) used to benchmark support for over one million concurrent connections. It serves as both a benchmark suite and a scaffold for building chat, push, and notification servers.

## Use cases
- benchmark websocket servers for a million concurrent connections
- compare performance of netty vs go vs node.js websocket implementations
- learn how to tune linux for C1000K websocket connections
- use a scaffold to build a chat or message push server
- find the fastest websocket framework for high connection counts

## When to choose
- you need reference implementations and tuning guidance for extreme websocket concurrency
- you want to compare websocket framework performance on the JVM, Go, or Node.js

## When to avoid
- you need a production-ready websocket server with active maintenance and support
- you need a licensed project for commercial use (no license is provided)
- you need up-to-date framework versions (last release was 2016)

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: websocket, http-server, benchmarking
- domain: web-development, performance, networking, developer-tools
- platform: jvm, go, cross-platform
- tags: websocket-servers, c1000k, performance-comparison, scala, netty, benchmark, linux, nodejs

## Member repositories
- smallnest/C1000K-Servers (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:54.814906+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:32:46.556204+00:00, confidence not recorded.
  - readme: https://github.com/smallnest/C1000K-Servers (fetched 2026-08-28T04:04:54.814906+00:00, sha ee9283127529)
- Data as of 2026-08-30T08:39:29.467469+00:00.