如何减少golang tcp服务器中的cpu使用率？

package main

import (
    "net"
    "log"
)

func main() {
    listener, err := net.Listen("tcp", ":8080")
    if err != nil {
        log.Fatal(err)
    }
    defer listener.Close()

    for {
        conn, err := listener.Accept()
        if err != nil {
            log.Println(err)
            continue
        }
        go handleConnection(conn)
    }
}

func handleConnection(conn net.Conn) {
    defer conn.Close()
    // 处理连接
}

func handleConnection(conn net.Conn) {
    buffer := make([]byte, 4096)
    for {
        n, err := conn.Read(buffer)
        if err != nil {
            log.Println(err)
            return
        }
        // 处理读取的数据
    }
}

var bufferPool = sync.Pool{
    New: func() interface{} {
        return make([]byte, 4096)
    },
}

func handleConnection(conn net.Conn) {
    buffer := bufferPool.Get().([]byte)
    defer bufferPool.Put(buffer)
    for {
        n, err := conn.Read(buffer)
        if err != nil {
            log.Println(err)
            return
        }
        // 处理读取的数据
    }
}

var workerPool = make(chan struct{}, 100)

func handleConnection(conn net.Conn) {
    workerPool <- struct{}{}
    defer func() { <-workerPool }()
    // 处理连接
}