search for: _vfio_vs_virtio

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2023 Jan 25
0
[Bridge] Packet loss when ~400 virtual machine connected to a bridge
Hello everyone, We have a physical server that hosts about 400 virtual machines. Each virtual machine has a TAP device connected to a Linux bridge. We tried to use Linux-KVM suggestions for QEMU networking according to this link https://www.linux-kvm.org/page/10G_NIC_performance:_VFIO_vs_virtio Unfortunately, we have a packet loss when pinging virtual machines' IP addresses. Pining the physical server is ok, and there is no packet loss. Would you please guide me on how I should find the root cause of the packet loss? Also, it would be great if you share your experience of connecting...