I run multiple VM with Linux, Windows on a HP DL380P G8 host, and i have problem with network speed. The iperf test between VM and host is good, over 1,5GB/s, but the internet speedtest is bad.
I have 1000/1000 Mbit/s wan connection. The speed is ok, if I connect a pc in to the ISP's device, but the VM network speed is much less.
Made an ubuntu VM with 4GB RAM, and 1 CPU with virtio NIC and this setup can reach 700/700 Mbit/s with speedtest and 1,5GB/s LAN speed between host. If I add 4 CPU this VM, the internet speed test is go down around 500/300 Mbit/s, and the LAN speed decrease 1,1 GB/s.
Win10 VM is same. It's internet speed 800/400 Mbit/s. The download speed is roughly acceptable, but upload not.
I spent a week with this situation, but don't find working solutions.
I have 1000/1000 Mbit/s wan connection. The speed is ok, if I connect a pc in to the ISP's device, but the VM network speed is much less.
Made an ubuntu VM with 4GB RAM, and 1 CPU with virtio NIC and this setup can reach 700/700 Mbit/s with speedtest and 1,5GB/s LAN speed between host. If I add 4 CPU this VM, the internet speed test is go down around 500/300 Mbit/s, and the LAN speed decrease 1,1 GB/s.
Win10 VM is same. It's internet speed 800/400 Mbit/s. The download speed is roughly acceptable, but upload not.
I spent a week with this situation, but don't find working solutions.
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