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LaurentFr
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cpu snd 100%

Hi we have 12000 with hyperthreading  on R80.40

14 core is used for SND with multiqueue

During the night we have some cpu snd at 100% (core 6 and 18)

 

LaurentFr_0-1610630494542.png

 

 

mq_mng -o -vv

Total 24 cores. Multiqueue 14 cores: 0,12,1,13,2,14,3,15,4,16,5,17,6,18

i/f             type            state           mode            cores

------------------------------------------------------------------------------------------------

eth1-01         igb             Up              Manual (6/6)    4(44),5(64),6(71),16(72),17(73

                                                                ),18(74)

eth1-02         igb             Up              Manual (2/2)    6(46),18(62)

eth3-01         ixgbe           Up              Manual (8/8)    0(32),1(33),2(75),3(76),12(77)

                                                                ,13(78),14(79),15(80)

eth3-02         ixgbe           Up              Manual (8/8)    0(41),1(42),2(82),3(83),12(84)

                                                                ,13(85),14(86),15(87)

 

------------------------------------------------------------------------------------------------

eth1-01 <igb> max 8 cur 6

07:00.0 Ethernet controller: Intel Corporation 82580 Gigabit Network Connection (rev 01)

------------------------------------------------------------------------------------------------

eth1-02 <igb> max 8 cur 2

07:00.1 Ethernet controller: Intel Corporation 82580 Gigabit Network Connection (rev 01)

------------------------------------------------------------------------------------------------

eth3-01 <ixgbe> max 16 cur 8

0b:00.0 Ethernet controller: Intel Corporation 82598EB 10-Gigabit AF Dual Port Network Connection (rev 01)

------------------------------------------------------------------------------------------------

eth3-02 <ixgbe> max 16 cur 8

0b:00.1 Ethernet controller: Intel Corporation 82598EB 10-Gigabit AF Dual Port Network Connection (rev 01)

 

core            interfaces      queue                     irq        rx packets      tx packets

------------------------------------------------------------------------------------------------

0               eth3-02         eth3-02-TxRx-0            41         1689904250      3050069231

                eth3-01         eth3-01-TxRx-0            32         5989085764      4682704535

1               eth3-02         eth3-02-TxRx-1            42         2249362604      2530447628

                eth3-01         eth3-01-TxRx-1            33         5607694691      4725495868

2               eth3-02         eth3-02-TxRx-2            82         1726557692      2535269943

                eth3-01         eth3-01-TxRx-2            75         5517866101      4657673749

3               eth3-02         eth3-02-TxRx-3            83         3031426922      2541684515

                eth3-01         eth3-01-TxRx-3            76         5387815051      5392658537

4               eth1-01         eth1-01-TxRx-0            44         5745780444      5066610909

5               eth1-01         eth1-01-TxRx-1            64         5660543320      5250052263

6               eth1-01         eth1-01-TxRx-2            71         5609782035      5241570137

                eth1-02         eth1-02-TxRx-0            46         86188155        22415174

12              eth3-02         eth3-02-TxRx-4            84         1932488547      2521731994

                eth3-01         eth3-01-TxRx-4            77         5538733877      4770489033

13              eth3-02         eth3-02-TxRx-5            85         1362157701      2594395035

                eth3-01         eth3-01-TxRx-5            78         5615672550      4662853260

14              eth3-02         eth3-02-TxRx-6            86         1896096461      2534195537

                eth3-01         eth3-01-TxRx-6            79         5573642631      4574375661

15              eth3-02         eth3-02-TxRx-7            87         1342383871      2554725929

                eth3-01         eth3-01-TxRx-7            80         5650565459      4580983129

16              eth1-01         eth1-01-TxRx-3            72         5758952353      5105643290

17              eth1-01         eth1-01-TxRx-4            73         5536131194      5345937255

18              eth1-01         eth1-01-TxRx-5            74         5598655668      5393671928

                eth1-02         eth1-02-TxRx-1            62         67831372        16852835

 

How can I identify why my cpu is at 100% when the monitroring of the traffic of the interfaces does not reveal a significant flow?

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