heap_profile_callsites {
  instance_stats {
    pid: 2
    process_name: "system_server"
    callsites {
      hash: -2067767828047084124
      parent_hash: 3061552492032359760

      frame {
        name: "symbolized f3"
        mapping_name: "/liblib.so"
      }
      self_allocs {
        total_count: 2
        total_bytes: 2000
        delta_count: 1
        delta_bytes: 1000
      }
      child_allocs {
        total_count: 2
        total_bytes: 2000
        delta_count: 1
        delta_bytes: 1000
      }
    }
    callsites {
      hash: 3061552492032359760
      parent_hash: 6947621464292123521

      frame {
        name: "symbolized f2"
        mapping_name: "/liblib.so"
      }
      self_allocs {
        total_count: 10
        total_bytes: 100
        delta_count: 9
        delta_bytes: 90
      }
      child_allocs {
        total_count: 12
        total_bytes: 2100
        delta_count: 10
        delta_bytes: 1090
      }
    }
    callsites {
      hash: 6947621464292123521
      parent_hash: -1
      frame {
        name: "f1"
        mapping_name: "/liblib.so"
      }
      child_allocs {
        total_count: 12
        total_bytes: 2100
        delta_count: 10
        delta_bytes: 1090
      }
    }
    profile_delta_bytes: 1090
    profile_total_bytes: 2100
  }
}