test: rework and calibrate Lua DNS and routing benchmarks

app/router/lua_test.go

@@ -271,79 +271,4 @@ func TestFindProcess(t *testing.T) {
 	}
 }
 
-// BenchmarkLuaRoute measures a preloaded routing script using its context bridge.
-// The direct case runs an equivalent native routing rule.
-func BenchmarkLuaRoute(b *testing.B) {
-	r := new(Router)
-	if err := r.Init(context.Background(), &Config{Rule: []*RoutingRule{{
-		TargetTag:  &RoutingRule_Tag{Tag: "out"},
-		RuleTag:    "rule",
-		InboundTag: []string{"in"},
-		Networks:   []net.Network{net.Network_TCP},
-		Ip: []*geodata.IPRule{{
-			Value: &geodata.IPRule_Custom{Custom: &geodata.CIDRRule{
-				Cidr: &geodata.CIDR{Ip: []byte{127, 0, 0, 0}, Prefix: 8},
-			}},
-		}},
-	}}}, nil, nil, nil); err != nil {
-		b.Fatal(err)
-	}
-	L := lua.NewState()
-	defer L.Close()
-	r.RegisterLua(L)
-	geodata.RegisterLua(L)
-	if err := L.DoString(`
-local router = require("xray.router")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8")
-function HandleRoute(ctx, inboundTag, sourcePort, targetPort, localPort,
-    targetDomain, network, protocol, user, vlessRoute, skipDNSResolve)
-    if inboundTag == "in" and network == router.NetworkTCP and matcher:AnyMatch(ctx:GetTargetIPs()) then
-        return "out", "rule"
-    end
-end
-`); err != nil {
-		b.Fatal(err)
-	}
-
-	L.SetContext(context.Background())
-	ctx := newLuaRouteTestContext()
-	for _, benchmark := range []struct {
-		name  string
-		route func() (string, string, error)
-	}{
-		{"direct", func() (string, string, error) {
-			route, err := r.PickRoute(ctx)
-			if err != nil {
-				return "", "", err
-			}
-			return route.GetOutboundTag(), route.GetRuleTag(), nil
-		}},
-		{"lua_script", func() (string, string, error) {
-			if err := callLuaRoute(L, ctx); err != nil {
-				return "", "", err
-			}
-			outboundTag, ruleTag, err := readLuaRouteResult(L)
-			L.Pop(3)
-			return outboundTag, ruleTag, err
-		}},
-	} {
-		b.Run(benchmark.name, func(b *testing.B) {
-			b.ReportAllocs()
-			b.ResetTimer()
-			var outboundTag, ruleTag string
-			var err error
-			for i := 0; i < b.N; i++ {
-				outboundTag, ruleTag, err = benchmark.route()
-				if err != nil {
-					b.Fatal(err)
-				}
-			}
-			b.StopTimer()
-			if outboundTag != "out" || ruleTag != "rule" {
-				b.Fatalf("route() = %q, %q; want out, rule", outboundTag, ruleTag)
-			}
-		})
-	}
-}
-
 var _ routing.Context = (*luaRouteTestContext)(nil)