evio

Pros of gnet

• Higher performance in benchmarks, especially for high-concurrency scenarios
• More comprehensive feature set, including load balancing and custom protocols
• Active development with frequent updates and community contributions

Cons of gnet

• Steeper learning curve due to more complex API
• Less flexibility for custom event loops compared to evio
• Larger codebase and dependencies, potentially increasing binary size

Code Comparison

gnet example:

type echoServer struct {
    *gnet.EventServer
}

func (es *echoServer) React(frame []byte, c gnet.Conn) (out []byte, action gnet.Action) {
    out = frame
    return
}

gnet.Serve(new(echoServer), "tcp://:9000", gnet.WithMulticore(true))

evio example:

var events evio.Events
events.Data = func(c evio.Conn, in []byte) (out []byte, action evio.Action) {
    out = in
    return
}

evio.Serve(events, "tcp://:9000")

Both libraries provide efficient networking capabilities for Go applications, but gnet offers higher performance and more features at the cost of increased complexity. evio, on the other hand, provides a simpler API and greater flexibility for custom event loops.

Pros of fasthttp

• Optimized for high-performance HTTP operations, particularly suited for microservices and API servers
• Provides a complete HTTP client and server implementation with minimal memory allocations
• Offers a rich set of utilities for handling HTTP requests and responses efficiently

Cons of fasthttp

• Limited to HTTP/1.x protocol, lacking support for HTTP/2 or newer protocols
• May require more manual handling of certain HTTP features compared to the standard net/http package
• Less suitable for general-purpose networking tasks outside of HTTP

Code Comparison

fasthttp example:

func requestHandler(ctx *fasthttp.RequestCtx) {
    fmt.Fprintf(ctx, "Hello, world!")
}
fasthttp.ListenAndServe(":8080", requestHandler)

evio example:

var events evio.Events
events.Data = func(c evio.Conn, in []byte) (out []byte, action evio.Action) {
    out = []byte("Hello, world!")
    return
}
evio.Serve(events, "tcp://:8080")

Key Differences

• fasthttp is specifically designed for HTTP, while evio is a general-purpose networking framework
• evio provides lower-level control over network events, suitable for custom protocols
• fasthttp offers higher-level HTTP-specific functionality out of the box
• evio uses an event-driven model, while fasthttp follows a more traditional request-response pattern

Pros of nbio

• Higher performance and lower latency in high-concurrency scenarios
• More comprehensive feature set, including WebSocket support and TLS
• Active development with frequent updates and improvements

Cons of nbio

• Steeper learning curve due to more complex API
• Less documentation and examples compared to evio
• May be overkill for simpler networking tasks

Code Comparison

nbio:

engine, err := nbio.NewEngine(nbio.Config{
    Network: "tcp",
    Addr:    ":8888",
})
engine.OnData(func(c *nbio.Conn, data []byte) {
    c.Write(data)
})
engine.Start()

evio:

var events evio.Events
events.Data = func(c evio.Conn, in []byte) (out []byte, action evio.Action) {
    out = in
    return
}
evio.Serve(events, "tcp://:8888")

Both libraries provide efficient network I/O handling in Go, but nbio offers more features and potentially better performance in high-concurrency scenarios. evio has a simpler API and may be easier to use for basic networking tasks. The choice between them depends on the specific requirements of your project, such as performance needs, feature requirements, and development complexity.

Pros of 1m-go-websockets

• Specifically designed for WebSocket connections, offering optimized performance for this use case
• Includes a benchmark tool for testing WebSocket server performance
• Demonstrates scalability for handling a large number of concurrent WebSocket connections

Cons of 1m-go-websockets

• Less versatile than evio, as it focuses solely on WebSocket connections
• May require more manual configuration for complex networking scenarios
• Limited documentation compared to evio

Code Comparison

evio:

events.Serve(events.Events{
    Addr:   ":8080",
    NumLoops: -1,
    Serving: func(srv events.Server) (action events.Action) {
        // Server is ready to accept connections
    },
})

1m-go-websockets:

http.HandleFunc("/ws", wsHandler)
if err := http.ListenAndServe(*addr, nil); err != nil {
    log.Fatal("ListenAndServe: ", err)
}

Summary

evio is a more general-purpose event loop networking framework, offering flexibility for various network protocols. 1m-go-websockets, on the other hand, is tailored specifically for WebSocket connections, providing optimized performance and scalability for this particular use case. While evio may be more suitable for diverse networking needs, 1m-go-websockets excels in WebSocket-specific scenarios, especially when handling a large number of concurrent connections.