[dpdk-dev] IXGBE throughput loss with 4+ cores

[Saber Rezvani]

Hi,


I have run multi_process/symmetric_mp example in DPDK example directory.
For a one process its throughput is line rate but as I increase the
number of cores I see decrease in throughput. For example, If the number
of queues set to 4 and each queue assigns to a single core, then the
throughput will be something about 9.4. if 8 queues, then throughput
will be 8.5.

I have read the following, but it was not convincing.

http://mails.dpdk.org/archives/dev/2015-October/024960.html


I am eagerly looking forward to hearing from you, all.


Best wishes,

Saber