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Hardware and Performance / opnsense & proxmox (kvm)
« on: March 25, 2017, 07:57:17 pm »
Hi all,
I have been comparing FreeBSD and opnsense network performance inside proxmox with virtio nics. Using iperf, I can push 4-5 Gbits from/to FreeBSD (vanilla install) to a Linux host. Doing the same with opnsense, and for that matter pfsense, gets me at best 300-500 Mbits. Routing performance is consistent with the latter number.
While iperf is running the intr{irqxxx, virtio} thread is taking ~50% and the kernel{virtio} thread another ~30 of a single core. I believe I disabled pf and it didn't seem to make a difference. In contrast, I am only seeing ~40% in the intr{} thread on FreeBSD.
Does anyone have a guess what might be going on?
I have been comparing FreeBSD and opnsense network performance inside proxmox with virtio nics. Using iperf, I can push 4-5 Gbits from/to FreeBSD (vanilla install) to a Linux host. Doing the same with opnsense, and for that matter pfsense, gets me at best 300-500 Mbits. Routing performance is consistent with the latter number.
While iperf is running the intr{irqxxx, virtio} thread is taking ~50% and the kernel{virtio} thread another ~30 of a single core. I believe I disabled pf and it didn't seem to make a difference. In contrast, I am only seeing ~40% in the intr{} thread on FreeBSD.
Does anyone have a guess what might be going on?