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Set ring buffers to hardware max on network-{throughput,latency} #660

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jcpunk opened this issue Jul 12, 2024 · 1 comment
Open

Set ring buffers to hardware max on network-{throughput,latency} #660

jcpunk opened this issue Jul 12, 2024 · 1 comment

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@jcpunk
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jcpunk commented Jul 12, 2024

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/monitoring_and_managing_system_status_and_performance/tuning-the-network-performance_monitoring-and-managing-system-status-and-performance#increasing-the-ring-buffers-to-reduce-a-high-packet-drop-rate_tuning-network-adapter-settings

It would be helpful if the network profiles were able to set the hardware ring buffers to match the hardware max of the network cards. I'm aware of the existing setting you can use to manually set the buffers. I was hopeful for some sort of auto value.

@techiesaurus
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This makes perfect sense to me for throughput for receive packet buffers, throughput & max. transmit buffers not always good idea--in particular when still seeing some receive-side drops after max. receive buffer applied.
Some latency-sensitive systems are short distance and loss tolerant--this is not what those systems need.

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