Hi Brandon,No, I haven't seen or heard this before.But I will try to have someone run it again.Just to make sure -You are running trex on the 100G NIC and the problem is encountered on that setup?Or is it the system that is running testpmd where you are running into the issue?ThanksAjitOn Tue, Aug 4, 2020 at 9:16 AM Brandon Lo <blo@iol.unh.edu> wrote:Hi Ajit,I'm running into a problem with trying to run nic_single_core_perf on the new NIC.The current configuration uses trex version v2.82.However, I'm running into an error when it tries to actually do a test case in the nic_single_core_perf.The output looks like this when it reaches a test case:TestNicSingleCorePerf: Test running at parameters: framesize: 64, rxd/txd: 512
dut.rhea: ./x86_64-native-linuxapp-gcc/app/testpmd -l 16,17 -n 4 -w 0000:81:00.0 -w 0000:81:00.1 --file-prefix=dpdk_11307_20200804160513 -- -i --portmask=0x3 --txd=512 --rxd=512
dut.rhea: start
TestNicSingleCorePerf: Test Case test_perf_nic_single_core Result ERROR: Traceback (most recent call last):
File "/opt/dts/framework/test_case.py", line 316, in _execute_test_case
case_obj()
File "tests/TestSuite_nic_single_core_perf.py", line 198, in test_perf_nic_single_core
self.perf_test(self.nb_ports)
File "tests/TestSuite_nic_single_core_perf.py", line 259, in perf_test
_, packets_received = self.tester.pktgen.measure_throughput(stream_ids=streams, options=traffic_opt)
File "/opt/dts/framework/pktgen_base.py", line 245, in measure_throughput
self._prepare_transmission(stream_ids=stream_ids)
File "/opt/dts/framework/pktgen_trex.py", line 779, in _prepare_transmission
self._conn.reset(ports=self._ports)
File "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py", line 51, in wrap2
ret = f(*args, **kwargs)
File "/opt/v2.82/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py", line 339, in reset
self.clear_stats(ports)
File "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py", line 51, in wrap2
ret = f(*args, **kwargs)
File "/opt/v2.82/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py", line 1467, in clear_stats
self._clear_stats_common(ports, clear_global, clear_xstats)
File "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_client.py", line 2840, in _clear_stats_common
raise TRexError(rc)
trex.common.trex_exceptions.TRexError: *** [RPC] - Failed to get server response from tcp://127.0.0.1:4501I have found one similar case on the github repository for trex, but the solution was vendor-specific: https://github.com/cisco-system-traffic-generator/trex-core/issues/147.Have you ran into this issue before?Thanks,Brandon
Brandon Lo
UNH InterOperability Laboratory
21 Madbury Rd, Suite 100, Durham, NH 03824