Hi Ajit, I'm just checking in; have you heard of any updates on this issue? Thanks, Brandon On Tue, Aug 4, 2020 at 1:42 PM Brandon Lo wrote: > Hi Ajit, > > Yes, I believe the issue is coming from the trex/tester system with the > 100G NIC. > I'm not sure what causes this issue; if I run trex using the command "cd > /opt/v2.82;./t-rex-64 -i --cfg /etc/trex_cfg_100g.yaml -c 7", which is the > same command used in DTS, it seems to launch without failing. > > If you want to replicate it, here are the steps that I ran: > > 1. (on io) cd /opt/dts > 2. export DTS_CFG_FOLDER='conf_100g' > - conf_100g has the new configuration files to use the new PCI id > and pktgen config file > 3. ./dts -s > > > Thanks for your help, > Brandon > > On Tue, Aug 4, 2020 at 12:38 PM Ajit Khaparde > wrote: > >> 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 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 >>> >> > > -- > > Brandon Lo > > UNH InterOperability Laboratory > > 21 Madbury Rd, Suite 100, Durham, NH 03824 > > blo@iol.unh.edu > > www.iol.unh.edu > -- Brandon Lo UNH InterOperability Laboratory 21 Madbury Rd, Suite 100, Durham, NH 03824 blo@iol.unh.edu www.iol.unh.edu