ok, this is quite common to see. What is your question / concern? — Damjan
> On 7 May 2020, at 04:42, [email protected] wrote: > > Hi all； > I am using Intel 82599 (10G) , running with VPP v20.01-release with line > rate of 10G 128 bytes of packet size， i am observing Rx misses on the > interfaces. > > The VPP related config as flow: > vpp# show hardware-interfaces > Name Idx Link Hardware > TenGigabitEthernet3/0/1 1 up TenGigabitEthernet3/0/1 > Link speed: 10 Gbps > Ethernet address 6c:92:bf:4d:e2:fb > Intel 82599 > carrier up full duplex mtu 9206 > flags: admin-up pmd maybe-multiseg subif tx-offload intel-phdr-cksum > rx-ip4-cksum > rx: queues 1 (max 128), desc 4096 (min 32 max 4096 align 8) > tx: queues 1 (max 64), desc 4096 (min 32 max 4096 align 8) > pci: device 8086:15ab subsystem 8086:0000 address 0000:03:00.01 numa 0 > max rx packet len: 15872 > promiscuous: unicast off all-multicast on > vlan offload: strip off filter off qinq off > rx offload avail: vlan-strip ipv4-cksum udp-cksum tcp-cksum > outer-ipv4-cksum > vlan-filter vlan-extend jumbo-frame scatter keep-crc > rx offload active: ipv4-cksum jumbo-frame scatter > tx offload avail: vlan-insert ipv4-cksum udp-cksum tcp-cksum sctp-cksum > tcp-tso outer-ipv4-cksum multi-segs > tx offload active: udp-cksum tcp-cksum tcp-tso multi-segs > rss avail: ipv4-tcp ipv4-udp ipv4 ipv6-tcp-ex ipv6-udp-ex > ipv6-tcp > ipv6-udp ipv6-ex ipv6 > rss active: none > tx burst function: ixgbe_xmit_pkts > rx burst function: ixgbe_recv_scattered_pkts_vec > > tx frames ok 61218472 > tx bytes ok 7591090528 > rx frames ok 61218472 > rx bytes ok 7591090528 > rx missed 59536 > extended stats: > rx good packets 61218472 > tx good packets 61218472 > rx good bytes 7591090528 > tx good bytes 7591090528 > rx missed errors 59536 > rx q0packets 61218472 > rx q0bytes 7591090528 > tx q0packets 61218472 > tx q0bytes 7591090528 > rx size 128 to 255 packets 66097941 > rx total packets 66097927 > rx total bytes 8196143588 > tx total packets 61218472 > tx size 128 to 255 packets 61218472 > rx l3 l4 xsum error 101351297 > out pkts untagged 61218472 > rx priority0 dropped 59536 > local0 0 down local0 > Link speed: unknown > local > > cpu { > ## In the VPP there is one main thread and optionally the user can create > worker(s) > ## The main thread and worker thread(s) can be pinned to CPU core(s) > manually or automatically > > ## Manual pinning of thread(s) to CPU core(s) > > ## Set logical CPU core where main thread runs, if main core is not set > ## VPP will use core 1 if available > #main-core 1 > > ## Set logical CPU core(s) where worker threads are running > #corelist-workers 2-3,18-19 > #corelist-workers 4-3,5-7 > > ## Automatic pinning of thread(s) to CPU core(s) > > ## Sets number of CPU core(s) to be skipped (1 ... N-1) > ## Skipped CPU core(s) are not used for pinning main thread and working > thread(s). > ## The main thread is automatically pinned to the first available CPU core > and worker(s) > ## are pinned to next free CPU core(s) after core assigned to main thread > #skip-cores 4 > > ## Specify a number of workers to be created > ## Workers are pinned to N consecutive CPU cores while skipping "skip-cores" > CPU core(s) > ## and main thread's CPU core > # workers 4 > > ## Set scheduling policy and priority of main and worker threads > > ## Scheduling policy options are: other (SCHED_OTHER), batch (SCHED_BATCH) > ## idle (SCHED_IDLE), fifo (SCHED_FIFO), rr (SCHED_RR) > scheduler-policy fifo > > ## Scheduling priority is used only for "real-time policies (fifo and rr), > ## and has to be in the range of priorities supported for a particular policy > scheduler-priority 50 > } > > buffers { > ## Increase number of buffers allocated, needed only in scenarios with > ## large number of interfaces and worker threads. Value is per numa node. > ## Default is 16384 (8192 if running unpriviledged) > buffers-per-numa 30000 > > ## Size of buffer data area > ## Default is 2048 > default data-size 2048 > } > > dpdk { > ## Change default settings for all interfaces > dev default { > ## Number of receive queues, enables RSS > ## Default is 1 > #num-rx-queues 4 > > ## Number of transmit queues, Default is equal > ## to number of worker threads or 1 if no workers treads > #num-tx-queues 4 > > ## Number of descriptors in transmit and receive rings > ## increasing or reducing number can impact performance > ## Default is 1024 for both rx and tx > num-rx-desc 4096 > num-tx-desc 4096 > > ## VLAN strip offload mode for interface > ## Default is off > #vlan-strip-offload on > > ## TCP Segment Offload > ## Default is off > ## To enable TSO, 'enable-tcp-udp-checksum' must be set > tso on > > ## Devargs > ## device specific init args > ## Default is NULL > # devargs safe-mode-support=1,pipeline-mode-support=1 > } > > ## Whitelist specific interface by specifying PCI address > # dev 0000:02:00.0 > # dev 0000:03:00.1 > > ## Blacklist specific device type by specifying PCI vendor:device > ## Whitelist entries take precedence > # blacklist 8086:10fb > > ## Set interface name > #dev 0000:03:00.1 { > # name ztj > #} > > ## Whitelist specific interface by specifying PCI address and in > ## addition specify custom parameters for this interface > # dev 0000:02:00.1 { > # num-rx-queues 2 > # } > > ## Change UIO driver used by VPP, Options are: igb_uio, vfio-pci, > ## uio_pci_generic or auto (default) > uio-driver vfio-pci > #uio-driver uio_pci_generic > > ## Disable multi-segment buffers, improves performance but > ## disables Jumbo MTU support > # no-multi-seg > > ## Change hugepages allocation per-socket, needed only if there is need for > ## larger number of mbufs. Default is 256M on each detected CPU socket > #socket-mem 2048,2048 > socket-mem 8192,0 > > ## Disables UDP / TCP TX checksum offload. Typically needed for use > ## faster vector PMDs (together with no-multi-seg) > # no-tx-checksum-offload > > ## Enable UDP / TCP TX checksum offload > ## This is the reversed option of 'no-tx-checksum-offload' > enable-tcp-udp-checksum > } > > >
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16267): https://lists.fd.io/g/vpp-dev/message/16267 Mute This Topic: https://lists.fd.io/mt/74043598/21656 Group Owner: [email protected] Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
