Michal.Dorsett at verint.com
Sat Aug 19 11:21:05 CEST 2017
We are using DPDK 16.07.
In the documentation for the libpmd_i40e I read the following explanation re. RTE_LIBRTE_I40E_ITR_INTERVAL:
Due to the hardware design, the interrupt signal inside NIC is needed for per
packet descriptor write-back. The minimum interval of interrupts could be set
at compile time by ``CONFIG_RTE_LIBRTE_I40E_ITR_INTERVAL`` in configuration files.
Though there is a default configuration, the interval could be tuned by the
users with that configuration item depends on what the user cares about more,
performance or per packet latency.
However, I don't quite understand whether a larger interval should be set for performance, or a lower (I am interested in performance).
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