Hiya!

I’ve an issue with Intel XL710,  after 22 Gbps of visitors some cores of processor hundreds 100% IRQ and visitors goes down.

There are latast firmware and driver:

# ethtool -i ens2
driver: i40e
model: 2.24.6
firmware-version: 9.40 0x8000ecc0 1.3429.0
expansion-rom-version:
bus-info: 0000:d8:00.0
supports-statistics: sure
supports-test: sure
supports-eeprom-access: sure
supports-register-dump: sure
supports-priv-flags: sure

I learn this information

And made all potential configurations.  However nothing adjustments

382  set_irq_affinity native ens2
  384  set_irq_affinity all ens2
  387  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 0 tx-usecs 0
  389  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 5000 tx-usecs 20000
  391  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 10000 tx-usecs 20000
  393  ethtool -g ens2
  394  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 84 tx-usecs 84
  396  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 62 tx-usecs 62
  398   ethtool -S ens2 | grep drop
  399   ethtool -S ens2 | grep drop
  400   ethtool -S ens2 | grep drop
  401   ethtool -S ens2 | grep drop
  402  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 336 tx-usecs 84
  403   ethtool -S ens2 | grep drop
  404   ethtool -S ens2 | grep drop
  406   ethtool -S ens2 | grep drop
  407  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 672 tx-usecs 84
  408   ethtool -S ens2 | grep drop
  409   ethtool -S ens2 | grep drop
  411   ethtool -S ens2 | grep drop
  412   ethtool -S ens2 | grep drop
  425   ethtool -S ens2 | grep drop
  426   ethtool -S ens2 | grep drop
  427  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 8400 tx-usecs 840
  428  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 4200 tx-usecs 840
  430   ethtool -S ens2 | grep drop
  431   ethtool -S ens2 | grep drop
  432   ethtool -S ens2 | grep drop
  433   ethtool -S ens2 | grep drop
  434  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 4200 tx-usecs 1680
  435   ethtool -S ens2 | grep drop
  436   ethtool -S ens2 | grep drop
  439  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 3200 tx-usecs 3200
  469  ethtool -a ens2
  472  ethtool ens2
  473  ethtool -i ens2
  475  ethtool -i ens2
  476  ethtool ens2
  482  ethtool -C ens2 adaptive-rx on
  484  ethtool -c ens2
  486  ethtool -C ens2 adaptive-tx on
  487  ethtool -c ens2
  492  historical past | grep ens2
  494  ethtool -m ens2
  499  ethtool -C ens2 adaptive-rx off adaptive-tx off rx-usecs 4200 tx-usecs 1600
  501  historical past | grep ens2

Server configuration:

80 cores  Intel(R) Xeon(R) Gold 6230 CPU @ 2.10GHz

RAM 960 GB

8 x SAMSUNG MZQLB7T6HMLA-000AZ NVME disks

Ethernet Controller XL710 for 40GbE QSFP+ (rev 02)

What might be executed with the settings of this community card to resolve the issue?

On one other server with an identical configuration, however a special community playing cards, the whole lot is ok

Server configuration:

88 cores Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz

RAM 512 GB

8 x SAMSUNG MZQLB7T6HMLA-00007 NVME disks

4 x 82599ES 10-Gigabit SFI/SFP+ Community Connection