[ovs-dev] What's the problem of high cpu usage of pmd thread in ovs-dpdk version 2.13
Ilya Maximets
i.maximets at ovn.org
Mon Oct 11 17:34:45 UTC 2021
On 10/9/21 09:38, Simon Jones wrote:
> BTW, if this is not problem?
PM in PMD stands for "Poll Mode". DPDK provides poll mode drivers
for network devices. It means that there are no interrupts or any
other wake up mechanism to notify that there are some packets
recevied by the hardware, and the process (OVS) needs to poll the
driver constantly in order to check if there are some packets
avaialable in order to not miss them. Indeed, that is a waste of
CPU time and energy in case you have no traffic flowing, but that
is the price you have to pay for no-compromises maximum performance
for the times where your network is heavily used.
So, 100% CPU usage is by design. How many pmd threads you will
configure, so many CPU cores will be at 100% on your system.
Best regards, Ilya Maximets.
>
> As there are 8 core, pmd takes only 1 core.
> So who has also run ovs-dpdk, what's your top result?
>
> ----
> Simon Jones
>
>
> Simon Jones <batmanustc at gmail.com> 于2021年10月9日周六 下午2:35写道：
>
>> This is perf result, it shows mlx5_rx_burst_vec function is called
>> frequently. But there is no packet and no ovs-flows in datapath.
>>
>>
>> [root at host01 temp]# cat /tmp/perf_record_a/perf_report_perf_record_1.txt
>>> # To display the perf.data header info, please use --header/--header-only
>>> options.
>>> #
>>> #
>>> # Total Lost Samples: 1764
>>> #
>>> # Samples: 20K of event 'cycles:ppp'
>>> # Event count (approx.): 365753201591
>>> #
>>> # Overhead Command Shared Object Symbol
>>> # ........ ............ ..................
>>> .......................................
>>> #
>>> 39.22% pmd-c01/id:7 ovs-vswitchd [.] mlx5_rx_burst_vec
>>> 9.44% pmd-c01/id:7 [vdso] [.] __vdso_clock_gettime
>>> 8.80% pmd-c01/id:7 ovs-vswitchd [.] ccmap_try_inc
>>> 7.46% pmd-c01/id:7 ovs-vswitchd [.] ccmap_dec
>>> 6.87% pmd-c01/id:7 ovs-vswitchd [.] ofp_to_string__
>>> 6.52% pmd-c01/id:7 [kernel.kallsyms] [k] nmi
>>> 5.43% pmd-c01/id:7 ovs-vswitchd [.]
>>> rstp_set_bridge_forward_delay
>>> 4.55% pmd-c01/id:7 ovs-vswitchd [.] ct_dpif_format_entry
>>> 4.22% pmd-c01/id:7 ovs-vswitchd [.] ct_dpif_parse_tuple
>>> 1.57% pmd-c01/id:7 ovs-vswitchd [.] ofp_print_bit_names
>>> 1.48% pmd-c01/id:7 ovs-vswitchd [.] hindex_remove
>>> 1.32% pmd-c01/id:7 ovs-vswitchd [.]
>>> ct_dpif_parse_zone_limit_tuple
>>> 0.98% pmd-c01/id:7 libc-2.17.so [.] __clock_gettime
>>> 0.60% pmd-c01/id:7 ovs-vswitchd [.]
>>> rstp_set_bridge_transmit_hold_count
>>> 0.43% pmd-c01/id:7 ovs-vswitchd [.] rstp_set_bridge_address
>>> 0.41% pmd-c01/id:7 libpthread-2.17.so [.] __pthread_once
>>> 0.15% pmd-c01/id:7 ovs-vswitchd [.] search_sse_4
>>> 0.12% pmd-c01/id:7 ovs-vswitchd [.] 0x0000000000bd1a4f
>>> 0.09% pmd-c01/id:7 ovs-vswitchd [.] 0x0000000000bd1a4a
>>> 0.07% pmd-c01/id:7 [kernel.kallsyms] [k] read_tsc
>>> 0.06% pmd-c01/id:7 [kernel.kallsyms] [k] _raw_qspin_lock
>>> 0.04% pmd-c01/id:7 ovs-vswitchd [.] ofpacts_format
>>> 0.03% pmd-c01/id:7 [kernel.kallsyms] [k] update_vsyscall
>>> 0.02% pmd-c01/id:7 ovs-vswitchd [.] __gmon_start__ at plt
>>> 0.02% 11_scheduler beam.smp [.] 0x00000000000ed12f
>>> 0.02% pmd-c01/id:7 ovs-vswitchd [.] ipf_preprocess_conntrack
>>> 0.01% pmd-c01/id:7 ovs-vswitchd [.] cmap_try_insert
>>> 0.01% 11_scheduler beam.smp [.] 0x00000000000ed140
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k]
>>> retint_userspace_restore_args
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] irq_return
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] _raw_spin_lock_irqsave
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] sk_run_filter
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] apic_timer_interrupt
>>> 0.00% 11_scheduler beam.smp [.] 0x00000000000ed12b
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] trigger_load_balance
>>> 0.00% 11_scheduler beam.smp [.] 0x00000000000ed13e
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] __x86_indirect_thunk_rax
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] tick_do_update_jiffies64
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] __local_bh_enable
>>> 0.00% pmd-c01/id:7 ovs-vswitchd [.] ofpmp_append
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] native_write_msr_safe
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] notifier_call_chain
>>> 0.00% 11_scheduler beam.smp [.] 0x00000000000729e4
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k]
>>> ktime_get_update_offsets_now
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] pvclock_gtod_notify
>>> 0.00% pmd-c01/id:7 libpthread-2.17.so [.] pthread_getspecific
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] change_pte_range
>>> 0.00% 11_scheduler [kernel.kallsyms] [k]
>>> retint_userspace_restore_args
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] raw_notifier_call_chain
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] account_entity_dequeue
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] irq_exit
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k]
>>> clockevents_program_event
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] calc_global_load
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] update_cfs_shares
>>> 0.00% 11_scheduler libc-2.17.so [.] _getopt_long_only_r
>>> 0.00% pmd-c01/id:7 ovs-vswitchd [.] ofpacts_get_meter
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] run_timer_softirq
>>> 0.00% pmd-c01/id:7 libpthread-2.17.so [.] pthread_mutex_unlock
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] update_fast_timekeeper
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] handle_mm_fault
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] _raw_qspin_lock_irq
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] idle_cpu
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] smp_apic_timer_interrupt
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] __schedule
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] account_entity_dequeue
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] cpuacct_account_field
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] seccomp_bpf_load
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] intel_pstate_update_util
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] tick_sched_timer
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] intel_pstate_update_util
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] hrtimer_forward
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] __hrtimer_run_queues
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] rcu_process_gp_end
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] timerqueue_del
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] ktime_get
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] update_curr
>>> 0.00% 11_scheduler beam.smp [.] 0x00000000000ed136
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] profile_tick
>>> 0.00% pmd-c01/id:7 libpthread-2.17.so [.] pthread_mutex_trylock
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] call_softirq
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] irq_enter
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] get_futex_key
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] irq_return
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] __update_cpu_load
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] native_read_msr_safe
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] pick_next_entity
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] rcu_note_context_switch
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] account_entity_enqueue
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] task_tick_fair
>>> 0.00% pmd-c01/id:7 ovs-vswitchd [.] pinsched_run
>>> 0.00% 11_scheduler [kernel.kallsyms] [k] system_call_after_swapgs
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] x86_pmu_disable
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] hrtimer_run_queues
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] update_min_vruntime
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] set_normalized_timespec
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] tick_program_event
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] update_wall_time
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] ioremap_page_range
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] acpi_map_lookup
>>> 0.00% pmd-c01/id:7 [kernel.kallsyms] [k] intel_bts_enable_local
>>>
>>>
>>> #
>>> # (Tip: Create an archive with symtabs to analyse on other machine: perf
>>> archive)
>>> #
>>> [root at host01 temp]# cat /tmp/perf_record_a/pmds.txt
>>> pmd-c01/id:7 with PID 23444 in on pCPU 1
>>> [root at host01 temp]# cat /tmp/perf_record_a/p
>>> perf_report_perf_record_1.txt perf_report_perf_record_-g_1.txt
>>> pmds.txt
>>> [root at host01 temp]# cat
>>> /tmp/perf_record_a/perf_report_perf_record_-g_1.txt
>>> # To display the perf.data header info, please use --header/--header-only
>>> options.
>>> #
>>> #
>>> # Total Lost Samples: 2582
>>> #
>>> # Samples: 30K of event 'cycles:ppp'
>>> # Event count (approx.): 223748262979
>>> #
>>> # Children Self Command Shared Object Symbol
>>> # ........ ........ ............ ..................
>>> ..............................................
>>> #
>>> 42.51% 37.30% pmd-c01/id:7 ovs-vswitchd [.]
>>> mlx5_rx_burst_vec
>>> |
>>> |--35.83%--mlx5_rx_burst_vec
>>> |
>>> |--3.85%--0x7f23473fb700
>>> | 0x154dde0
>>> | |
>>> | --3.73%--mlx5_rx_burst_vec
>>> |
>>> --2.74%--0
>>> 0x508c2ac0
>>> mlx5_rx_burst_vec
>>>
>>> 15.20% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0000000000000000
>>> |
>>> ---0
>>> |
>>> |--4.37%--__clock_gettime
>>> | __vdso_clock_gettime
>>> |
>>> |--3.83%--ccmap_try_inc
>>> |
>>> |--3.28%--0x508c2ac0
>>> | mlx5_rx_burst_vec
>>> |
>>> |--2.46%--ct_dpif_parse_tuple
>>> |
>>> --0.92%--ct_dpif_parse_zone_limit_tuple
>>>
>>> 9.54% 9.21% pmd-c01/id:7 ovs-vswitchd [.] ccmap_dec
>>> |
>>> --8.97%--ccmap_dec
>>>
>>> 9.49% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0x000000000154dde0
>>> |
>>> ---0x154dde0
>>> |
>>> |--4.35%--rstp_set_bridge_forward_delay
>>> |
>>> |--4.03%--mlx5_rx_burst_vec
>>> |
>>> --0.78%--rstp_set_bridge_transmit_hold_count
>>>
>>> 9.37% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0x00007f23473fb700
>>> |
>>> ---0x7f23473fb700
>>> 0x154dde0
>>> |
>>> |--4.32%--rstp_set_bridge_forward_delay
>>> |
>>> |--3.95%--mlx5_rx_burst_vec
>>> |
>>> --0.78%--rstp_set_bridge_transmit_hold_count
>>>
>>> 8.88% 6.31% pmd-c01/id:7 ovs-vswitchd [.]
>>> ofp_to_string__
>>> |
>>> |--6.04%--ofp_to_string__
>>> |
>>> --2.13%--0x18
>>> |
>>> --1.78%--ofp_to_string__
>>>
>>> 8.55% 8.23% pmd-c01/id:7 ovs-vswitchd [.] ccmap_try_inc
>>> |
>>> |--4.55%--ccmap_try_inc
>>> |
>>> --3.98%--0
>>> |
>>> --3.65%--ccmap_try_inc
>>>
>>> 8.44% 1.60% pmd-c01/id:7 libc-2.17.so [.]
>>> __clock_gettime
>>> |
>>> |--6.83%--__clock_gettime
>>> | |
>>> | --6.68%--__vdso_clock_gettime
>>> |
>>> --0.64%--0x18
>>>
>>> 8.25% 7.53% pmd-c01/id:7 [vdso] [.]
>>> __vdso_clock_gettime
>>> |
>>> |--4.29%--0
>>> | __clock_gettime
>>> | __vdso_clock_gettime
>>> |
>>> |--0.72%--__vdso_clock_gettime
>>> |
>>> --0.60%--0x18
>>> |
>>> --0.60%--__clock_gettime
>>> __vdso_clock_gettime
>>>
>>> 7.58% 7.58% pmd-c01/id:7 [kernel.kallsyms] [k] nmi
>>> |
>>> |--4.33%--mlx5_rx_burst_vec
>>> |
>>> |--0.94%--0
>>> | |
>>> | --0.54%--0x508c2ac0
>>> | mlx5_rx_burst_vec
>>> |
>>> |--0.60%--0x7f23473fb700
>>> | 0x154dde0
>>> |
>>> --0.56%--0x18
>>>
>>> 5.83% 4.73% pmd-c01/id:7 ovs-vswitchd [.]
>>> rstp_set_bridge_forward_delay
>>> |
>>> |--3.80%--0x7f23473fb700
>>> | 0x154dde0
>>> | |
>>> | --3.69%--rstp_set_bridge_forward_delay
>>> |
>>> |--1.11%--rstp_set_bridge_forward_delay
>>> |
>>> --0.91%--0x7f2317ffd100
>>> rstp_set_bridge_forward_delay
>>>
>>> 5.19% 5.08% pmd-c01/id:7 ovs-vswitchd [.]
>>> ct_dpif_format_entry
>>> |
>>> ---ct_dpif_format_entry
>>>
>>> 4.72% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0x0000000000000018
>>> |
>>> ---0x18
>>> |
>>> |--2.67%--ofp_to_string__
>>> |
>>> --1.03%--__clock_gettime
>>> |
>>> --0.65%--__vdso_clock_gettime
>>>
>>> 3.79% 3.53% pmd-c01/id:7 ovs-vswitchd [.]
>>> ct_dpif_parse_tuple
>>> |
>>> |--2.76%--0
>>> | |
>>> | --2.29%--ct_dpif_parse_tuple
>>> |
>>> --1.03%--ct_dpif_parse_tuple
>>>
>>> 3.28% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0x00000000508c2ac0
>>> |
>>> ---0x508c2ac0
>>> mlx5_rx_burst_vec
>>>
>>> 2.65% 0.00% pmd-c01/id:7 [unknown] [.]
>>> 0x00007f2317ffd100
>>> |
>>> ---0x7f2317ffd100
>>> |
>>> |--1.38%--rstp_set_bridge_forward_delay
>>> |
>>> --0.99%--hindex_remove
>>>
>>> 1.98% 1.46% pmd-c01/id:7 ovs-vswitchd [.]
>>> ofp_print_bit_names
>>> |
>>> |--1.08%--ofp_print_bit_names
>>> |
>>> --0.90%--ofp_to_string__
>>>
>>> 1.85% 1.27% pmd-c01/id:7 ovs-vswitchd [.]
>>> ct_dpif_parse_zone_limit_tuple
>>> |
>>> --1.41%--ct_dpif_parse_zone_limit_tuple
>>>
>>> 1.75% 1.21% pmd-c01/id:7 ovs-vswitchd [.] hindex_remove
>>> |
>>> |--1.20%--0x7f2317ffd100
>>> | |
>>> | --0.78%--hindex_remove
>>> |
>>> --0.54%--hindex_remove
>>>
>>> 1.23% 0.86% pmd-c01/id:7 ovs-vswitchd [.]
>>> rstp_set_bridge_transmit_hold_count
>>> 1.12% 0.00% 11_scheduler libc-2.17.so [.]
>>> _getopt_long_only_r
>>> |
>>> --1.12%--_getopt_long_only_r
>>> |
>>> --0.74%--tracesys
>>>
>>> 0.96% 0.00% 11_scheduler [kernel.kallsyms] [k] tracesys
>>> |
>>> --0.95%--tracesys
>>>
>>> 0.73% 0.56% pmd-c01/id:7 libpthread-2.17.so [.]
>>> __pthread_once
>>> |
>>> --0.56%--0x18
>>> |
>>> --0.55%--ofp_to_string__
>>>
>>
>> (ovsdpdk-vswitchd)[root at host01 openvswitch-2.13.4]# ovs-ofctl dump-flows
>>> br_data
>>> cookie=0xaae523e5bd8b5026, duration=66518.807s, table=0, n_packets=0,
>>> n_bytes=0, priority=4,in_port="phy-br_data",dl_vlan=1
>>> actions=mod_vlan_vid:1100,NORMAL
>>> cookie=0xaae523e5bd8b5026, duration=66524.833s, table=0, n_packets=0,
>>> n_bytes=0, priority=2,in_port="phy-br_data" actions=drop
>>> cookie=0xaae523e5bd8b5026, duration=66525.025s, table=0, n_packets=0,
>>> n_bytes=0, priority=0 actions=NORMAL
>>> (ovsdpdk-vswitchd)[root at host01 openvswitch-2.13.4]# ovs-appctl
>>> dpctl/dump-flows
>>> 2021-10-09T06:33:08Z|00001|daemon_unix|WARN|/run/openvswitch/ovs-vswitchd.pid:
>>> open: No such file or directory
>>> ovs-appctl: cannot read pidfile "/run/openvswitch/ovs-vswitchd.pid" (No
>>> such file or directory)
>>>
>>
>> ----
>> Simon Jones
>>
>>
>> Simon Jones <batmanustc at gmail.com> 于2021年10月9日周六 下午1:22写道：
>>
>>> Hi all,
>>>
>>> I'm using ovs-dpdk version 2.13 in openstack(openstack is deploy by
>>> kolla-ansible(https://docs.openstack.org/kolla-ansible/latest/)).
>>>
>>> After I reboot hipervisor, I found high cpu usage of pmd thread in
>>> ovs-dpdk. But there is no large log or large packets, how to know what's
>>> the problem?
>>>
>>> I want to use perf like this:
>>> https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/10/html/ovs-dpdk_end_to_end_troubleshooting_guide/troubleshoot_ovs_dpdk_pmd_cpu_usage_with_perf_and_collect_and_send_the_troubleshooting_data
>>> But it's hang there.
>>>
>>> So I want to know, if it's my config error?
>>> Like there should be some other config in Open_vSwitch.other_config of
>>> ovsdb?
>>>
>>> Thank you!!!
>>>
>>> ```
>>> No more log:
>>> [root at host01 ~]# tailf /var/log/kolla/openvswitch/ovs
>>> ovsdb-server.log ovs-vswitchd.log
>>> [root at host01 ~]# tailf /var/log/kolla/openvswitch/ovs-vswitchd.log
>>> 2021-10-09T02:41:16.175Z|00351|dpif_netdev|WARN|There's no available
>>> (non-isolated) pmd thread on numa node 0. Queue 0 on port 'enp5s0f0' will
>>> be assigned to the pmd on core 1 (numa node 1). Expect reduced performance.
>>> 2021-10-09T02:41:16.177Z|00352|bridge|INFO|bridge br_mgmt: added
>>> interface enp5s0f1.1001 on port 1
>>> 2021-10-09T02:41:16.181Z|00353|bridge|INFO|bridge br_mgmt: using datapath
>>> ID 0000043f72a49981
>>> 2021-10-09T02:41:16.181Z|00354|rconn|INFO|br_mgmt<->tcp:127.0.0.1:6633:
>>> disconnecting
>>> 2021-10-09T02:41:16.187Z|00355|netdev_linux|WARN|error sending Ethernet
>>> packet on enp5s0f1.1001: Network is down
>>> 2021-10-09T02:41:17.210Z|00356|rconn|INFO|br_mgmt<->tcp:127.0.0.1:6633:
>>> connecting...
>>> 2021-10-09T02:41:18.035Z|00357|rconn|INFO|br_mgmt<->tcp:127.0.0.1:6633:
>>> connected
>>> ^C
>>>
>>> no packet on this NIC:
>>> [root at host01 ~]# tcpdump -i enp5s0f0 -c 100
>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
>>> listening on enp5s0f0, link-type EN10MB (Ethernet), capture size 262144
>>> bytes
>>> ^C
>>> 0 packets captured
>>> 0 packets received by filter
>>> 0 packets dropped by kernel
>>>
>>> top result:
>>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>>> 23387 root 20 0 256.9g 467624 24984 S 96.1 0.7 882:43.45
>>> ovs-vswitchd
>>>
>>> top -H -p 23387 result:
>>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>>> 23444 root 20 0 256.9g 467624 24984 R 95.7 0.7 883:35.70
>>> pmd-c01/id:7
>>>
>>> (ovsdpdk-db)[root at host01 openvswitch-2.13.4]# ovs-vsctl show | grep -C 4
>>> enp5s0f0
>>> Port phy-br_data
>>> Interface phy-br_data
>>> type: patch
>>> options: {peer=int-br_data}
>>> Port enp5s0f0 (This is dpdk type
>>> netdev, which is PMD by pmd-c01)
>>> Interface enp5s0f0
>>> type: dpdk
>>> options: {dpdk-devargs="0000:05:00.0"}
>>> Port br_data
>>> Interface br_data
>>> (ovsdpdk-db)[root at host01 openvswitch-2.13.4]# ovs-vsctl list Open_vSwitch
>>> _uuid : 427f600b-7a06-46e9-b273-5e63e08b1c72
>>> bridges : [606f95bb-0637-4df9-809a-6b85f618ac89,
>>> ce70bf43-ebad-4540-a7e3-e22a6e82fc4d, eae3413a-c859-44b3-a0dc-3b11c1f60a77,
>>> fa0eeef2-c15f-4f49-8ad6-72deb0d2b120]
>>> cur_cfg : 90
>>> datapath_types : [netdev, system]
>>> datapaths : {}
>>> db_version : []
>>> dpdk_initialized : true
>>> dpdk_version : "DPDK 19.11.8"
>>> external_ids : {}
>>> iface_types : [dpdk, dpdkr, dpdkvhostuser, dpdkvhostuserclient,
>>> erspan, geneve, gre, internal, ip6erspan, ip6gre, lisp, patch, stt, system,
>>> tap, vxlan]
>>> manager_options : [65e211d5-a792-4f28-9fab-4eb42034acaf]
>>> next_cfg : 90
>>> other_config : {dpdk-extra=" --proc-type primary ",
>>> dpdk-hugepage-dir="/dev/hugepages", dpdk-init=True, dpdk-lcore-mask="0x1",
>>> dpdk-mem-channels="4", dpdk-socket-mem="1024", pmd-cpu-mask="0x2"}
>>> ovs_version : []
>>> ssl : []
>>> statistics : {}
>>> system_type : []
>>> system_version : []
>>> ```
>>>
>>>
>>> ----
>>> Simon Jones
>>>
>>
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