One important thing that i not writed from start - this is real
internet, so this is not a LAN, but WAN
I have average 27 ms latency beetween hosts.
--- yy.yy.74.11 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9012ms
rtt min/avg/max/mdev = 27.203/27.444/27.791/0.230 ms
i've reloaded ixgbe with InterruptThrottleRate=1,1 (default)
[31906.918256] ixgbe: Interrupt Mode set to 2
[31906.918259] ixgbe: Multiple Queue Support Enabled
[31906.918264] ixgbe: Direct Cache Access (DCA) set to 0
[31906.918271] ixgbe: 0000:03:00.0: ixgbe_check_options: DCA is disabled
[31906.918274] ixgbe: Receive-Side Scaling (RSS) set to 8
[31906.918276] ixgbe: Virtual Machine Device Queues (VMDQ) set to 0
[31906.918278] ixgbe: I/O Virtualization (IOV) set to 0
[31906.918279] ixgbe: L2 Loopback Enable set to 0
[31906.918281] ixgbe: 0000:03:00.0: ixgbe_check_options: dynamic
interrupt throttling enabled
[31906.918283] ixgbe: Low Latency Interrupt TCP Port set to 5001
[31906.918285] ixgbe: Low Latency Interrupt on Packet Size set to 1500
[31906.918287] ixgbe: Low Latency Interrupt on TCP Push flag Enabled
[31906.918289] ixgbe: 0000:03:00.0: ixgbe_check_options: FCoE Offload
feature enabled
[31907.083032] ixgbe 0000:03:00.0: irq 77 for MSI/MSI-X
[31907.083045] ixgbe 0000:03:00.0: irq 78 for MSI/MSI-X
[31907.083055] ixgbe 0000:03:00.0: irq 79 for MSI/MSI-X
[31907.083065] ixgbe 0000:03:00.0: irq 80 for MSI/MSI-X
[31907.083074] ixgbe 0000:03:00.0: irq 81 for MSI/MSI-X
[31907.085174] ixgbe 0000:03:00.0: (PCI Express:5.0GT/s:Width x8)
90:e2:ba:40:89:24
[31907.085262] ixgbe 0000:03:00.0 eth1: MAC: 2, PHY: 15, SFP+: 5, PBA
No: E68793-006
[31907.085266] ixgbe 0000:03:00.0 eth1: Enabled Features: RxQ: 8 TxQ: 8
[31907.085301] ixgbe 0000:03:00.0 eth1: Intel(R) 10 Gigabit Network Connection
[31907.085531] ixgbe: Interrupt Mode set to 2
[31907.085534] ixgbe: Multiple Queue Support Enabled
[31907.085536] ixgbe: Direct Cache Access (DCA) set to 0
[31907.085538] ixgbe: 0000:03:00.1: ixgbe_check_options: DCA is disabled
[31907.085540] ixgbe: Receive-Side Scaling (RSS) set to 8
[31907.085542] ixgbe: Virtual Machine Device Queues (VMDQ) set to 0
[31907.085544] ixgbe: I/O Virtualization (IOV) set to 0
[31907.085545] ixgbe: L2 Loopback Enable set to 0
[31907.085547] ixgbe: 0000:03:00.1: ixgbe_check_options: dynamic
interrupt throttling enabled
[31907.085549] ixgbe: Low Latency Interrupt TCP Port set to 5001
[31907.085550] ixgbe: Low Latency Interrupt on Packet Size set to 1500
[31907.085552] ixgbe: Low Latency Interrupt on TCP Push flag Enabled
[31907.085554] ixgbe: 0000:03:00.1: ixgbe_check_options: FCoE Offload
feature enabled
[31907.325658] ixgbe 0000:03:00.0 eth1: detected SFP+: 5
[31907.784996] ixgbe 0000:03:00.0 eth1: NIC Link is Up 10 Gbps, Flow
Control: RX/TX
[31908.228991] ixgbe 0000:03:00.1: irq 82 for MSI/MSI-X
[31908.229002] ixgbe 0000:03:00.1: irq 83 for MSI/MSI-X
[31908.229007] ixgbe 0000:03:00.1: irq 84 for MSI/MSI-X
[31908.229012] ixgbe 0000:03:00.1: irq 85 for MSI/MSI-X
[31908.229016] ixgbe 0000:03:00.1: irq 86 for MSI/MSI-X
[31908.230732] ixgbe 0000:03:00.1: (PCI Express:5.0GT/s:Width x8)
90:e2:ba:40:89:25
[31908.230818] ixgbe 0000:03:00.1 eth3: MAC: 2, PHY: 1, PBA No: E68793-006
[31908.230820] ixgbe 0000:03:00.1 eth3: Enabled Features: RxQ: 8 TxQ: 8
[31908.230893] ixgbe 0000:03:00.1 eth3: Intel(R) 10 Gigabit Network Connection
[31913.504204] ixgbe 0000:03:00.0 eth1: detected SFP+: 5
[31913.755868] ixgbe 0000:03:00.0 eth1: NIC Link is Up 10 Gbps, Flow
Control: None
last line is when i executed disabling flow control
i disabled it both on switch and on card (actually i has disabled it
all long time ago, just tried today to turn it on, before i run out of
ideas how to resolve this issue)
after i tried to do tests again, and got same (very close) result
Optical 82599
------------------------------------------------------------
Client connecting to yy.yy.74.11, TCP port 5001
Binding to local address xxx.xxx.185.135
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 3] local xxx.xxx.185.135 port 5001 connected with yy.yy.74.11 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-20.0 sec 207 MBytes 86.7 Mbits/sec
Cooper 82574
------------------------------------------------------------
Client connecting to yy.yy.74.11, TCP port 5001
Binding to local address xxx.xxx.185.133
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 3] local xxx.xxx.185.133 port 5001 connected with yy.yy.74.11 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-20.1 sec 645 MBytes 270 Mbits/sec
Again i got 82574 at least 3 times faster.
This is ethtool -S eth1 report again after reload of driver.
NIC statistics:
rx_packets: 3474041
tx_packets: 6528442
rx_bytes: 450307293
tx_bytes: 9525085597
rx_errors: 0
tx_errors: 0
rx_dropped: 0
tx_dropped: 0
multicast: 22
collisions: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_errors: 0
rx_fifo_errors: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
rx_pkts_nic: 3472437
tx_pkts_nic: 6525653
rx_bytes_nic: 463886577
tx_bytes_nic: 9547445047
lsc_int: 3
tx_busy: 0
non_eop_descs: 0
broadcast: 730
rx_no_buffer_count: 0
tx_timeout_count: 0
tx_restart_queue: 0
rx_long_length_errors: 0
rx_short_length_errors: 0
tx_flow_control_xon: 0
rx_flow_control_xon: 0
tx_flow_control_xoff: 0
rx_flow_control_xoff: 0
rx_csum_offload_errors: 0
alloc_rx_page_failed: 0
alloc_rx_buff_failed: 0
rx_no_dma_resources: 0
hw_rsc_aggregated: 0
hw_rsc_flushed: 0
fdir_match: 0
fdir_miss: 0
fdir_overflow: 0
fcoe_bad_fccrc: 0
fcoe_last_errors: 0
rx_fcoe_dropped: 0
rx_fcoe_packets: 0
rx_fcoe_dwords: 0
fcoe_noddp: 0
fcoe_noddp_ext_buff: 0
tx_fcoe_packets: 0
tx_fcoe_dwords: 0
os2bmc_rx_by_bmc: 0
os2bmc_tx_by_bmc: 0
os2bmc_tx_by_host: 0
os2bmc_rx_by_host: 0
tx_queue_0_packets: 752433
tx_queue_0_bytes: 1106159204
tx_queue_1_packets: 774829
tx_queue_1_bytes: 1122892047
tx_queue_2_packets: 837308
tx_queue_2_bytes: 1224541683
tx_queue_3_packets: 743260
tx_queue_3_bytes: 1071268064
tx_queue_4_packets: 775167
tx_queue_4_bytes: 1137021910
tx_queue_5_packets: 866713
tx_queue_5_bytes: 1271941588
tx_queue_6_packets: 1041911
tx_queue_6_bytes: 1537638579
tx_queue_7_packets: 736821
tx_queue_7_bytes: 1053622522
tx_queue_8_packets: 0
tx_queue_8_bytes: 0
tx_queue_9_packets: 0
tx_queue_9_bytes: 0
tx_queue_10_packets: 0
tx_queue_10_bytes: 0
tx_queue_11_packets: 0
tx_queue_11_bytes: 0
tx_queue_12_packets: 0
tx_queue_12_bytes: 0
tx_queue_13_packets: 0
tx_queue_13_bytes: 0
tx_queue_14_packets: 0
tx_queue_14_bytes: 0
tx_queue_15_packets: 0
tx_queue_15_bytes: 0
tx_queue_16_packets: 0
tx_queue_16_bytes: 0
tx_queue_17_packets: 0
tx_queue_17_bytes: 0
tx_queue_18_packets: 0
tx_queue_18_bytes: 0
tx_queue_19_packets: 0
tx_queue_19_bytes: 0
tx_queue_20_packets: 0
tx_queue_20_bytes: 0
tx_queue_21_packets: 0
tx_queue_21_bytes: 0
tx_queue_22_packets: 0
tx_queue_22_bytes: 0
tx_queue_23_packets: 0
tx_queue_23_bytes: 0
tx_queue_24_packets: 0
tx_queue_24_bytes: 0
tx_queue_25_packets: 0
tx_queue_25_bytes: 0
tx_queue_26_packets: 0
tx_queue_26_bytes: 0
tx_queue_27_packets: 0
tx_queue_27_bytes: 0
tx_queue_28_packets: 0
tx_queue_28_bytes: 0
tx_queue_29_packets: 0
tx_queue_29_bytes: 0
tx_queue_30_packets: 0
tx_queue_30_bytes: 0
tx_queue_31_packets: 0
tx_queue_31_bytes: 0
tx_queue_32_packets: 0
tx_queue_32_bytes: 0
tx_queue_33_packets: 0
tx_queue_33_bytes: 0
tx_queue_34_packets: 0
tx_queue_34_bytes: 0
tx_queue_35_packets: 0
tx_queue_35_bytes: 0
tx_queue_36_packets: 0
tx_queue_36_bytes: 0
tx_queue_37_packets: 0
tx_queue_37_bytes: 0
tx_queue_38_packets: 0
tx_queue_38_bytes: 0
tx_queue_39_packets: 0
tx_queue_39_bytes: 0
tx_queue_40_packets: 0
tx_queue_40_bytes: 0
tx_queue_41_packets: 0
tx_queue_41_bytes: 0
tx_queue_42_packets: 0
tx_queue_42_bytes: 0
tx_queue_43_packets: 0
tx_queue_43_bytes: 0
tx_queue_44_packets: 0
tx_queue_44_bytes: 0
tx_queue_45_packets: 0
tx_queue_45_bytes: 0
tx_queue_46_packets: 0
tx_queue_46_bytes: 0
tx_queue_47_packets: 0
tx_queue_47_bytes: 0
tx_queue_48_packets: 0
tx_queue_48_bytes: 0
tx_queue_49_packets: 0
tx_queue_49_bytes: 0
tx_queue_50_packets: 0
tx_queue_50_bytes: 0
tx_queue_51_packets: 0
tx_queue_51_bytes: 0
tx_queue_52_packets: 0
tx_queue_52_bytes: 0
tx_queue_53_packets: 0
tx_queue_53_bytes: 0
tx_queue_54_packets: 0
tx_queue_54_bytes: 0
tx_queue_55_packets: 0
tx_queue_55_bytes: 0
tx_queue_56_packets: 0
tx_queue_56_bytes: 0
tx_queue_57_packets: 0
tx_queue_57_bytes: 0
tx_queue_58_packets: 0
tx_queue_58_bytes: 0
tx_queue_59_packets: 0
tx_queue_59_bytes: 0
tx_queue_60_packets: 0
tx_queue_60_bytes: 0
tx_queue_61_packets: 0
tx_queue_61_bytes: 0
tx_queue_62_packets: 0
tx_queue_62_bytes: 0
tx_queue_63_packets: 0
tx_queue_63_bytes: 0
tx_queue_64_packets: 0
tx_queue_64_bytes: 0
tx_queue_65_packets: 0
tx_queue_65_bytes: 0
tx_queue_66_packets: 0
tx_queue_66_bytes: 0
tx_queue_67_packets: 0
tx_queue_67_bytes: 0
tx_queue_68_packets: 0
tx_queue_68_bytes: 0
tx_queue_69_packets: 0
tx_queue_69_bytes: 0
tx_queue_70_packets: 0
tx_queue_70_bytes: 0
rx_queue_0_packets: 463967
rx_queue_0_bytes: 33270955
rx_queue_1_packets: 346811
rx_queue_1_bytes: 70602531
rx_queue_2_packets: 445265
rx_queue_2_bytes: 61583232
rx_queue_3_packets: 426811
rx_queue_3_bytes: 33946327
rx_queue_4_packets: 473199
rx_queue_4_bytes: 35975233
rx_queue_5_packets: 316566
rx_queue_5_bytes: 32463326
rx_queue_6_packets: 529871
rx_queue_6_bytes: 140641116
rx_queue_7_packets: 471551
rx_queue_7_bytes: 41824573
rx_queue_8_packets: 0
rx_queue_8_bytes: 0
rx_queue_9_packets: 0
rx_queue_9_bytes: 0
rx_queue_10_packets: 0
rx_queue_10_bytes: 0
rx_queue_11_packets: 0
rx_queue_11_bytes: 0
rx_queue_12_packets: 0
rx_queue_12_bytes: 0
rx_queue_13_packets: 0
rx_queue_13_bytes: 0
rx_queue_14_packets: 0
rx_queue_14_bytes: 0
rx_queue_15_packets: 0
rx_queue_15_bytes: 0
rx_queue_16_packets: 0
rx_queue_16_bytes: 0
rx_queue_17_packets: 0
rx_queue_17_bytes: 0
rx_queue_18_packets: 0
rx_queue_18_bytes: 0
rx_queue_19_packets: 0
rx_queue_19_bytes: 0
rx_queue_20_packets: 0
rx_queue_20_bytes: 0
rx_queue_21_packets: 0
rx_queue_21_bytes: 0
rx_queue_22_packets: 0
rx_queue_22_bytes: 0
rx_queue_23_packets: 0
rx_queue_23_bytes: 0
rx_queue_24_packets: 0
rx_queue_24_bytes: 0
rx_queue_25_packets: 0
rx_queue_25_bytes: 0
rx_queue_26_packets: 0
rx_queue_26_bytes: 0
rx_queue_27_packets: 0
rx_queue_27_bytes: 0
rx_queue_28_packets: 0
rx_queue_28_bytes: 0
rx_queue_29_packets: 0
rx_queue_29_bytes: 0
rx_queue_30_packets: 0
rx_queue_30_bytes: 0
rx_queue_31_packets: 0
rx_queue_31_bytes: 0
rx_queue_32_packets: 0
rx_queue_32_bytes: 0
rx_queue_33_packets: 0
rx_queue_33_bytes: 0
rx_queue_34_packets: 0
rx_queue_34_bytes: 0
rx_queue_35_packets: 0
rx_queue_35_bytes: 0
rx_queue_36_packets: 0
rx_queue_36_bytes: 0
rx_queue_37_packets: 0
rx_queue_37_bytes: 0
rx_queue_38_packets: 0
rx_queue_38_bytes: 0
rx_queue_39_packets: 0
rx_queue_39_bytes: 0
rx_queue_40_packets: 0
rx_queue_40_bytes: 0
rx_queue_41_packets: 0
rx_queue_41_bytes: 0
rx_queue_42_packets: 0
rx_queue_42_bytes: 0
rx_queue_43_packets: 0
rx_queue_43_bytes: 0
rx_queue_44_packets: 0
rx_queue_44_bytes: 0
rx_queue_45_packets: 0
rx_queue_45_bytes: 0
rx_queue_46_packets: 0
rx_queue_46_bytes: 0
rx_queue_47_packets: 0
rx_queue_47_bytes: 0
rx_queue_48_packets: 0
rx_queue_48_bytes: 0
rx_queue_49_packets: 0
rx_queue_49_bytes: 0
rx_queue_50_packets: 0
rx_queue_50_bytes: 0
rx_queue_51_packets: 0
rx_queue_51_bytes: 0
rx_queue_52_packets: 0
rx_queue_52_bytes: 0
rx_queue_53_packets: 0
rx_queue_53_bytes: 0
rx_queue_54_packets: 0
rx_queue_54_bytes: 0
rx_queue_55_packets: 0
rx_queue_55_bytes: 0
rx_queue_56_packets: 0
rx_queue_56_bytes: 0
rx_queue_57_packets: 0
rx_queue_57_bytes: 0
rx_queue_58_packets: 0
rx_queue_58_bytes: 0
rx_queue_59_packets: 0
rx_queue_59_bytes: 0
rx_queue_60_packets: 0
rx_queue_60_bytes: 0
rx_queue_61_packets: 0
rx_queue_61_bytes: 0
rx_queue_62_packets: 0
rx_queue_62_bytes: 0
rx_queue_63_packets: 0
rx_queue_63_bytes: 0
rx_queue_64_packets: 0
rx_queue_64_bytes: 0
rx_queue_65_packets: 0
rx_queue_65_bytes: 0
rx_queue_66_packets: 0
rx_queue_66_bytes: 0
rx_queue_67_packets: 0
rx_queue_67_bytes: 0
rx_queue_68_packets: 0
rx_queue_68_bytes: 0
rx_queue_69_packets: 0
rx_queue_69_bytes: 0
rx_queue_70_packets: 0
rx_queue_70_bytes: 0
tx_pb_0_pxon: 0
tx_pb_0_pxoff: 0
tx_pb_1_pxon: 0
tx_pb_1_pxoff: 0
tx_pb_2_pxon: 0
tx_pb_2_pxoff: 0
tx_pb_3_pxon: 0
tx_pb_3_pxoff: 0
tx_pb_4_pxon: 0
tx_pb_4_pxoff: 0
tx_pb_5_pxon: 0
tx_pb_5_pxoff: 0
tx_pb_6_pxon: 0
tx_pb_6_pxoff: 0
tx_pb_7_pxon: 0
tx_pb_7_pxoff: 0
rx_pb_0_pxon: 0
rx_pb_0_pxoff: 0
rx_pb_1_pxon: 0
rx_pb_0_pxoff: 0
rx_pb_1_pxon: 0
rx_pb_1_pxoff: 0
rx_pb_2_pxon: 0
rx_pb_2_pxoff: 0
rx_pb_3_pxon: 0
rx_pb_3_pxoff: 0
rx_pb_4_pxon: 0
rx_pb_4_pxoff: 0
rx_pb_5_pxon: 0
rx_pb_5_pxoff: 0
rx_pb_6_pxon: 0
rx_pb_6_pxoff: 0
rx_pb_7_pxon: 0
rx_pb_7_pxoff: 0
2013/8/13 Alexander Duyck <alexander.h.du...@intel.com>:
> Based on the info you provided I would say one possible red flag would
> be the flow control bits in the statistics. Specifically:
>> tx_flow_control_xon: 0
>> rx_flow_control_xon: 164
>> tx_flow_control_xoff: 0
>> rx_flow_control_xoff: 164
>> rx_csum_offload_errors: 1
>
> The fact that you are getting rx_flow_control messages would indicate
> that the 10Gb port is being stopped by the link partner. One thing you
> could try in order to test this further is to disable flow control on
> the 82599 port. To do that you can run the following where ethX is the
> name of the ixgbe interface you are currently using:
> ethtool -A ethX tx off rx off autoneg off
>
> Also you may want to set the 82599 and 82574 to the same interrupt
> rate. Currently it looks like the 82599 is being limited to 4000
> interrupts per second while the 82574 is being allowed up to 20,000. If
> you let the 82599 use its' default throttle rate setting that should be
> comparable to the dynamic throttling provided by the e1000 driver and
> should improve TCP performance by reducing latency.
--
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