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wmf
13 days ago
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Intel's make-or-break 18A process node debuts for ...
Usually network namespaces are linked together with a single bridge so you can get lock contention there.
If you have a separate physical NIC for each namespace you probably won't have any contention.
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jeffbee
13 days ago
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I think you could get much of the way there by isolating a single NIC's receive queues, so the kernel doesn't decide to run off and service softirqs for random foreign tasks just because your task called tcp_sendmsg.
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If you have a separate physical NIC for each namespace you probably won't have any contention.