missing missing packets in igb stats ?
Nikolay Denev
nike_d at cytexbg.com
Sun Feb 2 11:49:47 UTC 2014
On Sat, Feb 1, 2014 at 2:08 AM, Mike Tancsa <mike at sentex.net> wrote:
> Hi Jack,
> I was testing out forwarding and firewalling speeds of the igb driver on
> RELENG_10 and noticed something odd.
>
> I have 2 boxes connected to a FreeBSD box in the middle
>
> FreeBSD-A(em1)-----------(igb1)Router-1(igb0)----------(em1)FreeBSD-B
>
> So Box A generates packets as fast as it can to FreeBSD box B's em1 nic.
> Router-1 is a FreeBSD box as releng10. Watching ifstat on Router-1 as I
> execute the command on FreeBSD-A
> # ./netblast 1.1.1.2 500 100 20
>
> start: 1391219372.477992294
> finish: 1391219392.496952108
> send calls: 10877557
> send errors: 0
> approx send rate: 543877
> approx error rate: 0
>
> I see on the router-1 box
>
> igb0 igb1
> Kbps in Kbps out Kbps in Kbps out
> 0.00 0.00 0.00 0.00
> 1600.61 191639.1 280888.7 0.00
> 3669.84 434348.6 636134.9 0.00
> 3706.56 438636.7 596650.5 0.00
> 3755.10 444358.9 562814.3 0.00
> 3714.89 439478.5 562056.4 0.00
> 3796.79 449397.9 562042.9 0.00
> 3786.02 447957.2 577561.4 0.00
> 3629.18 429453.4 601285.7 0.00
> 3728.48 441312.7 597785.3 0.00
> 3806.67 450401.2 596247.0 0.00
> 3854.79 456150.2 597865.7 0.00
> 3690.11 436552.1 596695.8 0.00
> 3676.08 435002.6 596462.8 0.00
> 3730.35 441535.2 597132.1 0.00
> 3680.43 435518.2 596960.3 0.00
> 3741.41 442685.3 597750.8 0.00
> 3691.93 436870.6 596236.9 0.00
> 3627.31 429120.5 594116.8 0.00
> 3661.97 433492.7 595812.0 0.00
> 3693.86 437169.0 597826.9 0.00
> 2046.18 240635.3 331656.3 0.00
> 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00
>
> Notice the rate of traffic coming in on igb1 is higher than what is going
> out on igb0. Box A thinks it sent traffic at some 536,616 pkts per second
> or 590Mb/s. However, traffic going out is slower, and what is seen at box B
> is less. It sees the traffic at 286Mb/s and 357,873 pps
>
> Given the lost packets, should this not show up somewhere in the igb
> statistics ?
>
> dev.igb.0.%desc: Intel(R) PRO/1000 Network Connection version - 2.4.0
> dev.igb.0.%driver: igb
> dev.igb.0.%location: slot=0 function=0 handle=\_SB_.PCI0.PEG0.PEGP
> dev.igb.0.%pnpinfo: vendor=0x8086 device=0x10c9 subvendor=0x8086
> subdevice=0xa03c class=0x020000
> dev.igb.0.%parent: pci1
> dev.igb.0.nvm: -1
> dev.igb.0.enable_aim: 1
> dev.igb.0.fc: 3
> dev.igb.0.rx_processing_limit: 100
> dev.igb.0.link_irq: 2
> dev.igb.0.dropped: 0
> dev.igb.0.tx_dma_fail: 0
> dev.igb.0.rx_overruns: 0
> dev.igb.0.watchdog_timeouts: 0
> dev.igb.0.device_control: 1488978497
> dev.igb.0.rx_control: 67141634
> dev.igb.0.interrupt_mask: 4
> dev.igb.0.extended_int_mask: 2147483655
> dev.igb.0.tx_buf_alloc: 0
> dev.igb.0.rx_buf_alloc: 0
> dev.igb.0.fc_high_water: 58976
> dev.igb.0.fc_low_water: 58960
> dev.igb.0.queue0.no_desc_avail: 19682298
> dev.igb.0.queue0.tx_packets: 20962740
> dev.igb.0.queue0.rx_packets: 1101622
> dev.igb.0.queue0.rx_bytes: 66097424
> dev.igb.0.queue0.lro_queued: 0
> dev.igb.0.queue0.lro_flushed: 0
> dev.igb.0.queue1.no_desc_avail: 32582207
> dev.igb.0.queue1.tx_packets: 50082567
> dev.igb.0.queue1.rx_packets: 6598
> dev.igb.0.queue1.rx_bytes: 462728
> dev.igb.0.queue1.lro_queued: 0
> dev.igb.0.queue1.lro_flushed: 0
> dev.igb.0.mac_stats.excess_coll: 0
> dev.igb.0.mac_stats.single_coll: 0
> dev.igb.0.mac_stats.multiple_coll: 0
> dev.igb.0.mac_stats.late_coll: 0
> dev.igb.0.mac_stats.collision_count: 0
> dev.igb.0.mac_stats.symbol_errors: 0
> dev.igb.0.mac_stats.sequence_errors: 0
> dev.igb.0.mac_stats.defer_count: 138912
> dev.igb.0.mac_stats.missed_packets: 0
> dev.igb.0.mac_stats.recv_no_buff: 0
> dev.igb.0.mac_stats.recv_undersize: 0
> dev.igb.0.mac_stats.recv_fragmented: 0
> dev.igb.0.mac_stats.recv_oversize: 0
> dev.igb.0.mac_stats.recv_jabber: 0
> dev.igb.0.mac_stats.recv_errs: 0
> dev.igb.0.mac_stats.crc_errs: 0
> dev.igb.0.mac_stats.alignment_errs: 0
> dev.igb.0.mac_stats.coll_ext_errs: 0
> dev.igb.0.mac_stats.xon_recvd: 550808
> dev.igb.0.mac_stats.xon_txd: 0
> dev.igb.0.mac_stats.xoff_recvd: 550808
> dev.igb.0.mac_stats.xoff_txd: 0
> dev.igb.0.mac_stats.total_pkts_recvd: 1108220
> dev.igb.0.mac_stats.good_pkts_recvd: 6604
> dev.igb.0.mac_stats.bcast_pkts_recvd: 0
> dev.igb.0.mac_stats.mcast_pkts_recvd: 0
> dev.igb.0.mac_stats.rx_frames_64: 1
> dev.igb.0.mac_stats.rx_frames_65_127: 6603
> dev.igb.0.mac_stats.rx_frames_128_255: 0
> dev.igb.0.mac_stats.rx_frames_256_511: 0
> dev.igb.0.mac_stats.rx_frames_512_1023: 0
> dev.igb.0.mac_stats.rx_frames_1024_1522: 0
> dev.igb.0.mac_stats.good_octets_recvd: 489608
> dev.igb.0.mac_stats.good_octets_txd: 10120060648
> dev.igb.0.mac_stats.total_pkts_txd: 71045307
> dev.igb.0.mac_stats.good_pkts_txd: 71045307
> dev.igb.0.mac_stats.bcast_pkts_txd: 2
> dev.igb.0.mac_stats.mcast_pkts_txd: 0
> dev.igb.0.mac_stats.tx_frames_64: 2
> dev.igb.0.mac_stats.tx_frames_65_127: 5051081
> dev.igb.0.mac_stats.tx_frames_128_255: 65994224
> dev.igb.0.mac_stats.tx_frames_256_511: 0
> dev.igb.0.mac_stats.tx_frames_512_1023: 0
> dev.igb.0.mac_stats.tx_frames_1024_1522: 0
> dev.igb.0.mac_stats.tso_txd: 0
> dev.igb.0.mac_stats.tso_ctx_fail: 0
> dev.igb.0.interrupts.asserts: 6564060
> dev.igb.0.interrupts.rx_pkt_timer: 1108207
> dev.igb.0.interrupts.rx_abs_timer: 0
> dev.igb.0.interrupts.tx_pkt_timer: 0
> dev.igb.0.interrupts.tx_abs_timer: 1108220
> dev.igb.0.interrupts.tx_queue_empty: 71044772
> dev.igb.0.interrupts.tx_queue_min_thresh: 0
> dev.igb.0.interrupts.rx_desc_min_thresh: 0
> dev.igb.0.interrupts.rx_overrun: 0
> dev.igb.0.host.breaker_tx_pkt: 0
> dev.igb.0.host.host_tx_pkt_discard: 0
> dev.igb.0.host.rx_pkt: 13
> dev.igb.0.host.breaker_rx_pkts: 0
> dev.igb.0.host.breaker_rx_pkt_drop: 0
> dev.igb.0.host.tx_good_pkt: 535
> dev.igb.0.host.breaker_tx_pkt_drop: 0
> dev.igb.0.host.rx_good_bytes: 70993032
> dev.igb.0.host.tx_good_bytes: 10120060648
> dev.igb.0.host.length_errors: 0
> dev.igb.0.host.serdes_violation_pkt: 0
> dev.igb.0.host.header_redir_missed: 0
> dev.igb.0.wake: 0
> dev.igb.1.%desc: Intel(R) PRO/1000 Network Connection version - 2.4.0
> dev.igb.1.%driver: igb
> dev.igb.1.%location: slot=0 function=1
> dev.igb.1.%pnpinfo: vendor=0x8086 device=0x10c9 subvendor=0x8086
> subdevice=0xa03c class=0x020000
> dev.igb.1.%parent: pci1
> dev.igb.1.nvm: -1
> dev.igb.1.enable_aim: 1
> dev.igb.1.fc: 3
> dev.igb.1.rx_processing_limit: 100
> dev.igb.1.link_irq: 2
> dev.igb.1.dropped: 0
> dev.igb.1.tx_dma_fail: 0
> dev.igb.1.rx_overruns: 0
> dev.igb.1.watchdog_timeouts: 0
> dev.igb.1.device_control: 1488978497
> dev.igb.1.rx_control: 67141634
> dev.igb.1.interrupt_mask: 4
> dev.igb.1.extended_int_mask: 2147483655
> dev.igb.1.tx_buf_alloc: 0
> dev.igb.1.rx_buf_alloc: 0
> dev.igb.1.fc_high_water: 58976
> dev.igb.1.fc_low_water: 58960
> dev.igb.1.queue0.no_desc_avail: 0
> dev.igb.1.queue0.tx_packets: 14
> dev.igb.1.queue0.rx_packets: 27770289
> dev.igb.1.queue0.rx_bytes: 3632804418
> dev.igb.1.queue0.lro_queued: 0
> dev.igb.1.queue0.lro_flushed: 0
> dev.igb.1.queue1.no_desc_avail: 0
> dev.igb.1.queue1.tx_packets: 6599
> dev.igb.1.queue1.rx_packets: 58098597
> dev.igb.1.queue1.rx_bytes: 8250006086
> dev.igb.1.queue1.lro_queued: 0
> dev.igb.1.queue1.lro_flushed: 0
> dev.igb.1.mac_stats.excess_coll: 0
> dev.igb.1.mac_stats.single_coll: 0
> dev.igb.1.mac_stats.multiple_coll: 0
> dev.igb.1.mac_stats.late_coll: 0
> dev.igb.1.mac_stats.collision_count: 0
> dev.igb.1.mac_stats.symbol_errors: 0
> dev.igb.1.mac_stats.sequence_errors: 0
> dev.igb.1.mac_stats.defer_count: 0
> dev.igb.1.mac_stats.missed_packets: 0
> dev.igb.1.mac_stats.recv_no_buff: 0
> dev.igb.1.mac_stats.recv_undersize: 0
> dev.igb.1.mac_stats.recv_fragmented: 0
> dev.igb.1.mac_stats.recv_oversize: 0
> dev.igb.1.mac_stats.recv_jabber: 0
> dev.igb.1.mac_stats.recv_errs: 0
> dev.igb.1.mac_stats.crc_errs: 0
> dev.igb.1.mac_stats.alignment_errs: 0
> dev.igb.1.mac_stats.coll_ext_errs: 0
> dev.igb.1.mac_stats.xon_recvd: 0
> dev.igb.1.mac_stats.xon_txd: 0
> dev.igb.1.mac_stats.xoff_recvd: 0
> dev.igb.1.mac_stats.xoff_txd: 0
> dev.igb.1.mac_stats.total_pkts_recvd: 85868886
> dev.igb.1.mac_stats.good_pkts_recvd: 85868886
> dev.igb.1.mac_stats.bcast_pkts_recvd: 31
> dev.igb.1.mac_stats.mcast_pkts_recvd: 0
> dev.igb.1.mac_stats.rx_frames_64: 5
> dev.igb.1.mac_stats.rx_frames_65_127: 6211527
> dev.igb.1.mac_stats.rx_frames_128_255: 79657327
> dev.igb.1.mac_stats.rx_frames_256_511: 27
> dev.igb.1.mac_stats.rx_frames_512_1023: 0
> dev.igb.1.mac_stats.rx_frames_1024_1522: 0
> dev.igb.1.mac_stats.good_octets_recvd: 12226286048
> dev.igb.1.mac_stats.good_octets_txd: 490260
> dev.igb.1.mac_stats.total_pkts_txd: 6613
> dev.igb.1.mac_stats.good_pkts_txd: 6613
> dev.igb.1.mac_stats.bcast_pkts_txd: 4
> dev.igb.1.mac_stats.mcast_pkts_txd: 0
> dev.igb.1.mac_stats.tx_frames_64: 8
> dev.igb.1.mac_stats.tx_frames_65_127: 6605
> dev.igb.1.mac_stats.tx_frames_128_255: 0
> dev.igb.1.mac_stats.tx_frames_256_511: 0
> dev.igb.1.mac_stats.tx_frames_512_1023: 0
> dev.igb.1.mac_stats.tx_frames_1024_1522: 0
> dev.igb.1.mac_stats.tso_txd: 0
> dev.igb.1.mac_stats.tso_ctx_fail: 0
> dev.igb.1.interrupts.asserts: 8707927
> dev.igb.1.interrupts.rx_pkt_timer: 85867976
> dev.igb.1.interrupts.rx_abs_timer: 0
> dev.igb.1.interrupts.tx_pkt_timer: 0
> dev.igb.1.interrupts.tx_abs_timer: 85868886
> dev.igb.1.interrupts.tx_queue_empty: 6613
> dev.igb.1.interrupts.tx_queue_min_thresh: 0
> dev.igb.1.interrupts.rx_desc_min_thresh: 0
> dev.igb.1.interrupts.rx_overrun: 0
> dev.igb.1.host.breaker_tx_pkt: 0
> dev.igb.1.host.host_tx_pkt_discard: 0
> dev.igb.1.host.rx_pkt: 910
> dev.igb.1.host.breaker_rx_pkts: 0
> dev.igb.1.host.breaker_rx_pkt_drop: 0
> dev.igb.1.host.tx_good_pkt: 0
> dev.igb.1.host.breaker_tx_pkt_drop: 0
> dev.igb.1.host.rx_good_bytes: 12226288092
> dev.igb.1.host.tx_good_bytes: 490260
> dev.igb.1.host.length_errors: 0
> dev.igb.1.host.serdes_violation_pkt: 0
> dev.igb.1.host.header_redir_missed: 0
>
>
> Motherboard is Intel
>
> Base Board Information
> Manufacturer: Intel Corporation
> Product Name: DH87RL
> Version: AAG74240-401
> Serial Number: BQRL330000Q9
>
>
> NIC is dual port
>
> igb0 at pci0:1:0:0: class=0x020000 card=0xa03c8086 chip=0x10c98086
> rev=0x01 hdr=0x00
> vendor = 'Intel Corporation'
> device = '82576 Gigabit Network Connection'
> class = network
> subclass = ethernet
> bar [10] = type Memory, range 32, base 0xf7c20000, size 131072,
> enabled
> bar [14] = type Memory, range 32, base 0xf7800000, size 4194304,
> enabled
> bar [18] = type I/O Port, range 32, base 0xe020, size 32, enabled
> bar [1c] = type Memory, range 32, base 0xf7c44000, size 16384, enabled
> cap 01[40] = powerspec 3 supports D0 D3 current D0
> cap 05[50] = MSI supports 1 message, 64 bit, vector masks
> cap 11[70] = MSI-X supports 10 messages, enabled
> Table in map 0x1c[0x0], PBA in map 0x1c[0x2000]
> cap 10[a0] = PCI-Express 2 endpoint max data 128(512) FLR link x4(x4)
> speed 2.5(2.5) ASPM disabled(L0s/L1)
> ecap 0001[100] = AER 1 0 fatal 0 non-fatal 2 corrected
> ecap 0003[140] = Serial 1 90e2baffff5eb48a
> ecap 000e[150] = ARI 1
> ecap 0010[160] = SRIOV 1
> igb1 at pci0:1:0:1: class=0x020000 card=0xa03c8086 chip=0x10c98086
> rev=0x01 hdr=0x00
> vendor = 'Intel Corporation'
> device = '82576 Gigabit Network Connection'
> class = network
> subclass = ethernet
> bar [10] = type Memory, range 32, base 0xf7c00000, size 131072,
> enabled
> bar [14] = type Memory, range 32, base 0xf7000000, size 4194304,
> enabled
> bar [18] = type I/O Port, range 32, base 0xe000, size 32, enabled
> bar [1c] = type Memory, range 32, base 0xf7c40000, size 16384, enabled
> cap 01[40] = powerspec 3 supports D0 D3 current D0
> cap 05[50] = MSI supports 1 message, 64 bit, vector masks
> cap 11[70] = MSI-X supports 10 messages, enabled
> Table in map 0x1c[0x0], PBA in map 0x1c[0x2000]
> cap 10[a0] = PCI-Express 2 endpoint max data 128(512) FLR link x4(x4)
> speed 2.5(2.5) ASPM disabled(L0s/L1)
> ecap 0001[100] = AER 1 0 fatal 0 non-fatal 2 corrected
> ecap 0003[140] = Serial 1 90e2baffff5eb48a
> ecap 000e[150] = ARI 1
> ecap 0010[160] = SRIOV 1
>
>
> root at intel4gen-9:/usr/home/mdtancsa # netstat -m
> 6141/6489/12630 mbufs in use (current/cache/total)
> 6139/5871/12010/487416 mbuf clusters in use (current/cache/total/max)
> 6139/5861 mbuf+clusters out of packet secondary zone in use (current/cache)
> 0/5/5/243708 4k (page size) jumbo clusters in use (current/cache/total/max)
> 0/0/0/72209 9k jumbo clusters in use (current/cache/total/max)
> 0/0/0/40618 16k jumbo clusters in use (current/cache/total/max)
> 13813K/13384K/27197K bytes allocated to network (current/cache/total)
> 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
> 0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters)
> 0/0/0 requests for jumbo clusters delayed (4k/9k/16k)
> 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
> 0 requests for sfbufs denied
> 0 requests for sfbufs delayed
> 0 requests for I/O initiated by sendfile
> root at intel4gen-9:/usr/home/mdtancsa #
>
>
>
>
> --
> -------------------
> Mike Tancsa, tel +1 519 651 3400
> Sentex Communications, mike at sentex.net
> Providing Internet services since 1994 www.sentex.net
> Cambridge, Ontario Canada http://www.tancsa.com/
> _______________________________________________
> freebsd-net at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"
Just a guess, but this might be happening before the driver.
Anything interesting in "netstat -s" for ip and udp?
There is some inbound traffic on igb0. Are these ICMP udp port unreach?
--Nikolay
More information about the freebsd-net
mailing list