Higher than expected ip forwarding latency
Issue
- We are observing high latencies on the client device, and high CPU usage on the VM (software interrupts).
- When running tcpdump/tshark, the CPU spikes to 100% (software interrupts).
- When bypassing the VM the latencies are back to normal.
- Average latency (5000 concurrent connections) on RHEL 8.3 is 2.5 - 4.5ms, when customer bypass this its around 0.5ms with the same number of connections.
Environment
Red Hat Enterprise Linux
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