Intel ixgbe NIC throughput slow after updating kernel
Issue
- After upgrade from kernel version
3.10.0-862.3.2
to3.10.0-957.12.2
and newer (3.10.0-1062
and3.10.0-1062.1
) we observe significant performance drop. - Using
3.10.0-862.3.2
kernel, our application was able to achieve stable throughput 13,000 TPS, however after upgrade to the latest errata, we hardly achieve 1,000 TPS.
Environment
- Red Hat Enterprise Linux 7.7 (
kernel-3.10.0-1062.el7
series) - Red Hat Enterprise Linux 7.6 (
kernel-3.10.0-957.el7
series) - Intel network interface using
ixgbe
driver
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