},
          "route": {
           "cluster": "prometheus_stats"
          }
         }
        ]
       }
      ]
     },
     "last_updated": "2023-11-29T09:58:27.285Z"
    }
   ],
   "dynamic_route_configs": [
    {
     "version_info": "2023-11-29T09:58:18Z/10",
     "route_config": {
      "@type": "type.googleapis.com/envoy.config.route.v3.RouteConfiguration",

          },
          "route": {
           "cluster": "prometheus_stats"
          }
         }
        ]
       }
      ]
     },
     "last_updated": "2023-11-29T09:58:27.285Z"
    }
   ]
  }
 ]

	patterns := []string{
		`rel 0\+\d t=R_ADDR p\.x\+8\r?\n`,       // y = &x.b
		`rel 0\+\d t=R_ADDR p\.x\+(28|1c)\r?\n`, // z = &x.d.q
		`rel 0\+\d t=R_ADDR p\.b\+5\r?\n`,       // c = &b[5]
		`rel 0\+\d t=R_ADDR p\.x\+(88|58)\r?\n`, // w = &x.f[3].r
	}
	for _, p := range patterns {
		if ok, err := regexp.Match(p, out); !ok || err != nil {
			println(string(out))
			panic("can't find pattern " + p)
		}
	}
}

           "prefix": "/healthz/ready"
          },
          "route": {
           "cluster": "agent"
          }
         }
        ]
       }
      ]
     },
     "last_updated": "2023-11-29T10:46:50.845Z"
    }
   ],
   "dynamic_route_configs": [
    {
     "version_info": "2023-11-29T10:46:50Z/15",
     "route_config": {
      "@type": "type.googleapis.com/envoy.config.route.v3.RouteConfiguration",

          // Defeat branch predictor for: c < 0x80 ; branch taken 50% of the time.
          return 0x100;
        } else if (userFriendly.matches("(?i)(?:Greek|Cyrillic|European|ISO.?8859)")) {
          // Mostly 2-byte UTF-8 sequences - "European" text
          return 0x800;
        } else if (userFriendly.matches("(?i)(?:Chinese|Han|Asian|BMP)")) {
          // Mostly 3-byte UTF-8 sequences - "Asian" text

>>> Flow 2 (server to client)
00000000  16 03 02 00 5d 02 00 00  59 03 02 79 2f de f0 f3  |....]...Y..y/...|
00000010  97 6a 5e e3 07 66 d9 f2  8b e9 be 1a 97 9f 6d c8  |.j^..f........m.|
00000020  9d b5 88 57 fc 8c 5d 7f  d7 3e 34 20 e5 4c 51 33  |...W..]..>4 .LQ3|
00000030  52 23 a0 52 77 ca 41 4a  1b e4 22 fb 1c 82 f8 e4  |R#.Rw.AJ..".....|
00000040  aa 13 c2 1a ce cd d5 42  de b0 e9 10 c0 13 00 00  |.......B........|