test: rework and calibrate Lua DNS and routing benchmarks

app/dns/lua_test.go

@@ -270,59 +270,3 @@ func (*benchmarkLuaNameServer) IsDisableCache() bool { return true }
 func (s *benchmarkLuaNameServer) QueryIP(context.Context, string, featureDNS.IPOption) ([]net.IP, uint32, error) {
 	return s.ips, 60, nil
 }
-
-// BenchmarkLuaDNSQuery measures a preloaded DNS script using server:Query.
-// The direct case measures the same DNS client without Lua.
-func BenchmarkLuaDNSQuery(b *testing.B) {
-	option := featureDNS.IPOption{IPv4Enable: true}
-	ip := net.ParseIP("127.0.0.1")
-	upstream := &benchmarkLuaNameServer{ips: []net.IP{ip}}
-	client := &Client{server: upstream, ipOption: &option, timeoutMs: time.Second}
-	server := &DNS{clients: []*Client{client}}
-	L := lua.NewState()
-	defer L.Close()
-	server.registerLua(L)
-	if err := L.DoString(`
-local server = require("xray.dns").Servers[1]
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    return server:Query(domain, ipv4, ipv6, fake)
-end
-`); err != nil {
-		b.Fatal(err)
-	}
-
-	ctx := context.Background()
-	L.SetContext(ctx)
-	for _, bench := range []struct {
-		name  string
-		query func() ([]net.IP, uint32, error)
-	}{
-		{"direct", func() ([]net.IP, uint32, error) { return client.QueryIP(ctx, "example.com", option) }},
-		{"lua_script", func() ([]net.IP, uint32, error) {
-			if err := callLuaQuery(L, "example.com", option); err != nil {
-				return nil, 0, err
-			}
-			ips, ttl, err := readLuaQueryResult(L)
-			L.Pop(3)
-			return ips, ttl, err
-		}},
-	} {
-		b.Run(bench.name, func(b *testing.B) {
-			b.ReportAllocs()
-			b.ResetTimer()
-			var ips []net.IP
-			var ttl uint32
-			var err error
-			for i := 0; i < b.N; i++ {
-				ips, ttl, err = bench.query()
-				if err != nil {
-					b.Fatal(err)
-				}
-			}
-			b.StopTimer()
-			if ttl != 60 || len(ips) != 1 || !ips[0].Equal(ip) {
-				b.Fatalf("query() = %v, TTL %d; want %v, TTL 60", ips, ttl, ip)
-			}
-		})
-	}
-}