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?

Thanks
Ajit

On 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://127.0.0.1:4501
>
>
> I 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
>