From 0a1b5bfb51c895f547088b0f3110ee722b038dd6 Mon Sep 17 00:00:00 2001
From: Fangliding <Fangliding.fshxy@outlook.com>
Date: Thu, 5 Feb 2026 20:25:32 +0800
Subject: [PATCH] Bench

---
 common/mux/bench_test.go  | 70 +++++++++++++++++++++++++++++++++++++++
 common/mux/server_test.go |  2 +-
 2 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 common/mux/bench_test.go

diff --git a/common/mux/bench_test.go b/common/mux/bench_test.go
new file mode 100644
index 00000000..6eb6dc2a
--- /dev/null
+++ b/common/mux/bench_test.go
@@ -0,0 +1,70 @@
+package mux_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/mux"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/transport"
+	"github.com/xtls/xray-core/transport/pipe"
+)
+
+func BenchmarkMuxThroughput(b *testing.B) {
+	serverCtx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{}})
+	muxServerUplink, muxServerDownlink := newLinkPair()
+	dispatcher := TestDispatcher{
+		OnDispatch: func(ctx context.Context, dest net.Destination) (*transport.Link, error) {
+			inputReader, inputWriter := pipe.New(pipe.WithSizeLimit(512 * 1024))
+			outputReader, outputWriter := pipe.New(pipe.WithSizeLimit(512 * 1024))
+			go func() {
+				defer outputWriter.Close()
+				for {
+					mb, err := inputReader.ReadMultiBuffer()
+					if err != nil {
+						break
+					}
+					buf.ReleaseMulti(mb)
+				}
+			}()
+			return &transport.Link{
+				Reader: outputReader,
+				Writer: inputWriter,
+			}, nil
+		},
+	}
+	_, err := mux.NewServerWorker(serverCtx, &dispatcher, muxServerUplink)
+	common.Must(err)
+	client, err := mux.NewClientWorker(*muxServerDownlink, mux.ClientStrategy{})
+	common.Must(err)
+	clientCtx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.DomainAddress("www.example.com"), 80),
+	}})
+	muxClientUplink, muxClientDownlink := newLinkPair()
+	go func() {
+		for {
+			mb, err := muxClientDownlink.Reader.ReadMultiBuffer()
+			if err != nil {
+				break
+			}
+			buf.ReleaseMulti(mb)
+		}
+	}()
+	ok := client.Dispatch(clientCtx, muxClientUplink)
+	if !ok {
+		b.Fatal("failed to dispatch")
+	}
+	data := buf.FromBytes(make([]byte, 8192))
+	b.SetBytes(int64(8192))
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		err := muxClientUplink.Writer.WriteMultiBuffer(buf.MultiBuffer{data})
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}
diff --git a/common/mux/server_test.go b/common/mux/server_test.go
index 4158bf46..65cbc946 100644
--- a/common/mux/server_test.go
+++ b/common/mux/server_test.go
@@ -15,7 +15,7 @@ import (
 )
 
 func newLinkPair() (*transport.Link, *transport.Link) {
-	opt := pipe.WithoutSizeLimit()
+	opt := pipe.WithSizeLimit(512 * 1024)
 	uplinkReader, uplinkWriter := pipe.New(opt)
 	downlinkReader, downlinkWriter := pipe.New(opt)