Re: Performance issues with vnet jails + epair + bridge
Sad Clouds <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.net |
|---|---|
| Message-ID | <[email protected]> |
On Fri, 13 Sep 2024 08:08:02 -0400 Mark Saad <[email protected]> wrote: > Sad > Can you go back a bit you mentioned there is a RPi in the mix ? Some of the raspberries have their nic usb attached under the covers . Which will kill the total speed of things. > > Can you cobble together a diagram of what you have on either end ? Hello, I'm not sending data across the network, only between the host and the jails. I'm trying to evaluate how FreeBSD handles TCP data locally within a single host. I understand that vnet jails will have more overhead, compared to a shared TCP/IP stack via localhost. So I'm trying to measure it and see where the bottlenecks are. The Raspberry Pi 4 host has a single vnet jail, exchanging data with the host via epair(4) and if_bridge(4) interfaces. I don't really know what topology FreeBSD is using to represent all this so can't draw any diagrams, but I think all data flows through the kernel internally and never leaves the physical network interface.