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Oracle Linux: Poor Network IO Performance When Using Network Bonding in mode 4 / 802.3ad / LACP (Doc ID 1636393.1)

Last updated on MAY 26, 2021

Applies to:

Linux OS - Version Oracle Linux 5.0 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Linux x86


Linux network performance is observed to be significantly slower than expected when utilising network bonding in mode 4 i.e. LACP / 802.3ad.
Despite using 1Gbps or 10Gbps network interface cards (NICs), using dd(1) to create files on an NFS export sees network throughput of around 100-200Mbps only e.g.:

# time dd if=/dev/zero of=/nfs/64gbtestfile bs=16k count=4194304
4194304+0 records in
4194304+0 records out
68719476736 bytes (69 GB) copied, 680.886 seconds, 101 MB/s

real    11m20.905s
user    0m2.795s
sys     3m29.425s


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