Bhyve bridges are inefficient: every packet traverses NIC → CPU → bridge → VM, adding unnecessary copies that kill throughput. Switching to SR-IOV eliminated that overhead and I saturated the 10 GbE link.

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Veserv 6 hours ago | parent | next [-]

I do not see how that follows. Memory bandwidth is measured in the hundreds of Gb/s. You can issue tens of unnecessary full memory copies before you bottleneck at a paltry 10 Gb/s.

It is much more likely there is something else terribly wrong in a network stack if it can not even drive a measly 10 Gb/s.

	▲	stingraycharles 6 hours ago \| parent [-]
		That assumes memory bandwidth is the issue, and not latency and/or CPU.

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kev009 3 hours ago | parent | prev | next [-]

It would benefit from a batching mechanism.

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assimpleaspossi 7 hours ago | parent | prev | next [-]

You used the new optimized bridges on FreeBSD 15?

	▲	crest 40 minutes ago \| parent [-]
		The bridge driver gained features (vlan filtering) not performance.

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gigatexal 6 hours ago | parent | prev [-]

On Linux?