[dpdk-dev] Rx_missed_errors drops with larger packet size
SwamZ
swamssrk at gmail.com
Fri May 20 11:09:02 CEST 2016
Hi,
While doing performance testing with larger packet size (like 4000 bytes),
we are seeing rx_missed_errors on the interface. This issue is not seen
with packet size less than 2000. There were questions asked in this forum
on rx_missed_error, but there was not any conclusion. Please let me know
what could be the reason for these drops.
I tried the following without any luck:
1) Tried different burst size like 16, 32 an 64
2) Tried different number of the rx descriptors like 512, 1024, 2048 and
4096.
Setup and testing details:
CPU Speed : 2.6 GHz
NIC : 82599ES 10-Gigabit
IO Virtualization: SR-IOV
IO and packet processing cores are in the same NUMA.
Packet size : 4000 bytes
Traffic rate: 80 % line rate. If the traffic rate is < ~80% then drops are
not seen.
Application: This is a sample application developed using L3fwd example app.
DPDK version: 1.7
Thanks,
Swamy
More information about the dev
mailing list