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After migrating the ethernet interfaces from the good old Perl days the
smp-affinity node yet has no effect anymore as the code is still missing (my
bad, sorry).
Drop the smp-affinity node and rather use tuned instead with the
network-throughput or network-latency profile.
- network-throughput: Profile for throughput network tuning. It is based on the
throughput-performance profile. It additionaly increases kernel network buffers.
- network-latency: Profile for low latency network tuning. It is based on the
latency-performance profile. It additionaly disables transparent hugepages,
NUMA balancing and tunes several other network related sysctl parameters.
I'd set network-throughput as the default on a new set system option performance
<throughput | latency> CLI node which is present in the default configuration.
https://access.redhat.com/sites/default/files/attachments/201501-perf-brief-low-latency-tuning-rhel7-v2.1.pdf
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