When the number of tests is greater than or equal to 2, the test will fail.

Repeating all tests (iteration 2) . . .

Note: Google Test filter = JfrTestNetworkUtilization*
[==========] Running 4 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 4 tests from JfrTestNetworkUtilization
[ RUN ] JfrTestNetworkUtilization.RequestFunctionBasic_test_vm
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:259: Failure
Expected equality of these values:
  "eth0"
  e.iface.c_str()
    Which is: ""
[ FAILED ] JfrTestNetworkUtilization.RequestFunctionBasic_test_vm (1 ms)
[ RUN ] JfrTestNetworkUtilization.RequestFunctionMultiple_test_vm
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:281: Failure
Expected equality of these values:
  40
  eth0_event.readRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:283: Failure
Expected equality of these values:
  "eth0"
  eth0_event.iface.c_str()
    Which is: ""
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:285: Failure
Expected equality of these values:
  400
  eth1_event.readRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:287: Failure
Expected equality of these values:
  "eth1"
  eth1_event.iface.c_str()
    Which is: ""
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:290: Failure
Expected equality of these values:
  200
  ppp0_event.writeRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:291: Failure
Expected equality of these values:
  "ppp0"
  ppp0_event.iface.c_str()
    Which is: ""
[ FAILED ] JfrTestNetworkUtilization.RequestFunctionMultiple_test_vm (0 ms)
[ RUN ] JfrTestNetworkUtilization.InterfaceRemoved_test_vm
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:309: Failure
Expected equality of these values:
  40
  eth0_event.readRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:311: Failure
Expected equality of these values:
  "eth0"
  eth0_event.iface.c_str()
    Which is: ""
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:313: Failure
Expected equality of these values:
  80
  eth1_event.readRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:315: Failure
Expected equality of these values:
  "eth1"
  eth1_event.iface.c_str()
    Which is: ""
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:326: Failure
Expected equality of these values:
  40
  eth1_event_v2.readRate
    Which is: 0
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:328: Failure
Expected equality of these values:
  "eth1"
  eth1_event_v2.iface.c_str()
    Which is: ""
[ FAILED ] JfrTestNetworkUtilization.InterfaceRemoved_test_vm (0 ms)
[ RUN ] JfrTestNetworkUtilization.InterfaceReset_test_vm
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:344: Failure
Expected equality of these values:
  "eth0"
  event.iface.c_str()
    Which is: ""
/home/loongson/huangjia/jdk/test/hotspot/gtest/jfr/test_networkUtilization.cpp:361: Failure
Expected equality of these values:
  "eth0"
  event_v2.iface.c_str()
    Which is: ""
[ FAILED ] JfrTestNetworkUtilization.InterfaceReset_test_vm (0 ms)
[----------] 4 tests from JfrTestNetworkUtilization (1 ms total)

[----------] Global test environment tear-down
[==========] 4 tests from 1 test case ran. (1 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 4 tests, listed below:
[ FAILED ] JfrTestNetworkUtilization.RequestFunctionBasic_test_vm
[ FAILED ] JfrTestNetworkUtilization.RequestFunctionMultiple_test_vm
[ FAILED ] JfrTestNetworkUtilization.InterfaceRemoved_test_vm
[ FAILED ] JfrTestNetworkUtilization.InterfaceReset_test_vm

 4 FAILED TESTS