TL;DR

I was trying to compare the performance for my new project which involves sockets and high performance for low latency. I was using go as my primary language and I was confortable using go with gorilla/mux lib. Then soon I was hitted with the post from x.com which makes me think of using go once again. I knew something is wrong in this test. Even shockingly the performance difference in go vs bun.js made me stop and think for a while. So I wanna to test the difference performance for this both language as an developer.

1. My Test VS Synthetic Benchmarks

In the Synthetic Benchmarks the tester just included a 1 bil nested for loop. This test just say how well the for loop is coded in a language and not the real performance.

// index.ts 
for(var i = 0; i < n; i ++) {
    for(var j = 0; j < n; j ++) {
      ...
        ...
          ...
    }
}

// main.go
for i := 0; i < n; i ++ {
    for j := 0; j < n; j ++ {
        ...
          ...
            ..
    }
}

Btw noone is going to write 1b nested for loop. As an real developer Im not gonna to use. I want real performance how well the standard lib are written and how well the external lib are optimized.

In my test Im going to include:

• Setup a http server
• Data transformation (json)
• JWT
• Bcrypt
• Postgres Drivers

1.1. Go Test Setup

• Http Server: stock net/http with middleware chaining
• Json: standard lib encoding/json
• JWT Parsing: golang-jwt/jwt
• Bcrypt: crypto/bcrypt
• Database Driver: pgx/pgxpool

1.2. BunJS Test Setup

• Http Server: I choose HonoJS because it modern framework for building REST end points in JS.
• Json: HonoJS come with json encoding.
• JWT Parsing: jsonwebtoken
• Bcrypt: for password hashing function Bcrypt
• Database Driver: Im going to use pg.

both the language I gave the connection pool of the database of postgres to defaults by the drivers

Also I didn use any ORM because in JS lib like Drizzle or Prisma the SQL generated can fetch more than 2 times from the connection pool which may reduce the performance of JS.

Test Results