如何减少Golang TCP服务器中的CPU使用率？

I try to implement a golang tcp server, and I found the concurrency is satisfied for me, but the CPU usage is too high(concurrency is 15W+/s, but the CPU usage is about 800% in a 24 cores linux machine). At the same time, a C++ tcp server is only about 200% usage with a similar concurrency(with libevent).

The following code is the demo of golang:

func main() {
    listen, err := net.Listen("tcp", "0.0.0.0:17379")
    if err != nil {
        fmt.Errorf(err.Error())
    }
    go acceptClient(listen)
    var channel2 = make(chan bool)
    <-channel2
}

func acceptClient(listen net.Listener) {
    for {
        sock, err := listen.Accept()
        if err != nil {
            fmt.Errorf(err.Error())
        }
        tcp := sock.(*net.TCPConn)
        tcp.SetNoDelay(true)
        var channel = make(chan bool, 10)
        go read(channel, sock.(*net.TCPConn))
        go write(channel, sock.(*net.TCPConn))
    }
}

func read(channel chan bool, sock *net.TCPConn) {
    count := 0
    for {
        var buf = make([]byte, 1024)
        n, err := sock.Read(buf)
        if err != nil {
            close(channel)
            sock.CloseRead()
            return
        }
        count += n
        x := count / 58
        count = count % 58
        for i := 0; i < x; i++ {
            channel <- true
        }
   }
}

func write(channel chan bool, sock *net.TCPConn) {
    buf := []byte("+OK
")
    defer func() {
        sock.CloseWrite()
        recover()
    }()
    for {
        _, ok := <-channel
        if !ok {
            return
        }
        _, writeError := sock.Write(buf)
        if writeError != nil {
            return
        }
    }
}

And I test this tcp server by the redis-benchmark with multi-clients:

redis-benchmark -h 10.100.45.2  -p 17379 -n 1000 -q script load "redis.call('set','aaa','aaa')"

I also analyzed my golang code by the pprof, it is said CPU cost a lot of time on syscall: enter image description here