* [dpdk-dev] Clarification on latency at NIC line rate..
@ 2016-03-03 19:35 Saravana Kumar
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From: Saravana Kumar @ 2016-03-03 19:35 UTC (permalink / raw)
To: dev
Hi DPDK community,
I have been experimenting with dpdk eth_tx send on ixgbe pmd (82599 NIC)
I am seeing the following behavior
When i pass 1500 bytes at 9.99GB traffic -- latency looks
fine (25 microseconds)
but when i pass 1500 bytes hitting 10GB traffic(line rate)
-- latency spikes (160 microseconds) and stays forever
once the traffic returns back to 9.99GB traffic latency also
returns back to normal (25 microseconds)
Is this expected behaviour ? Is there any way to reduce the 160
microseconds line rate issue. Thanks Team
Regards,
Saravanan
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2016-03-03 19:35 [dpdk-dev] Clarification on latency at NIC line rate Saravana Kumar
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