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package websocket_test
import (
"context"
"io"
"io/ioutil"
"net/http"
"strconv"
"strings"
"testing"
"time"
"nhooyr.io/websocket"
)
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func BenchmarkConn(b *testing.B) {
sizes := []int{
2,
16,
32,
512,
4096,
16384,
}
b.Run("write", func(b *testing.B) {
for _, size := range sizes {
b.Run(strconv.Itoa(size), func(b *testing.B) {
b.Run("stream", func(b *testing.B) {
benchConn(b, false, true, size)
})
b.Run("buffer", func(b *testing.B) {
benchConn(b, false, false, size)
})
})
}
})
b.Run("echo", func(b *testing.B) {
for _, size := range sizes {
b.Run(strconv.Itoa(size), func(b *testing.B) {
benchConn(b, true, true, size)
})
}
})
}
func benchConn(b *testing.B, echo, stream bool, size int) {
s, closeFn := testServer(b, func(w http.ResponseWriter, r *http.Request) error {
c, err := websocket.Accept(w, r, nil)
if err != nil {
return err
}
if echo {
echoLoop(r.Context(), c)
} else {
discardLoop(r.Context(), c)
}
return nil
}, false)
defer closeFn()
wsURL := strings.Replace(s.URL, "http", "ws", 1)
ctx, cancel := context.WithTimeout(context.Background(), time.Minute*5)
defer cancel()
c, _, err := websocket.Dial(ctx, wsURL, nil)
if err != nil {
b.Fatal(err)
}
defer c.Close(websocket.StatusInternalError, "")
msg := []byte(strings.Repeat("2", size))
readBuf := make([]byte, len(msg))
b.SetBytes(int64(len(msg)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
if stream {
w, err := c.Writer(ctx, websocket.MessageText)
if err != nil {
b.Fatal(err)
}
_, err = w.Write(msg)
if err != nil {
b.Fatal(err)
}
err = w.Close()
if err != nil {
b.Fatal(err)
}
} else {
err = c.Write(ctx, websocket.MessageText, msg)
if err != nil {
b.Fatal(err)
}
}
if echo {
_, r, err := c.Reader(ctx)
if err != nil {
b.Fatal(err)
}
_, err = io.ReadFull(r, readBuf)
if err != nil {
b.Fatal(err)
}
}
}
b.StopTimer()
c.Close(websocket.StatusNormalClosure, "")
}
func discardLoop(ctx context.Context, c *websocket.Conn) {
defer c.Close(websocket.StatusInternalError, "")
ctx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
b := make([]byte, 32768)
echo := func() error {
_, r, err := c.Reader(ctx)
if err != nil {
return err
}
_, err = io.CopyBuffer(ioutil.Discard, r, b)
if err != nil {
return err
}
return nil
}
for {
err := echo()
if err != nil {
return
}
}
}