While the the transmit packet true-size is very small (ie. 768) the receive queue is being charged much larger value when using mlx4 or mlx5 driver.

Solution In Progress - Updated -

Issue

  • While the the transmit packet true-size is very small (ie. 768) the receive queue is being charged much larger value when using mlx4 or mlx5 driver.
  • Understanding increases in UDP socket rx_queue for mlx4.
  • Understanding increases in UDP socket rx_queue for mlx5.

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • Mellanox Connect X-3
  • Mellanox Connect X-4

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