I have a packet filtering bridge running on PF and OpenBSD 6.8. My
hardware is a SuperMicro Atom D525 service with dual Intel Gigabit
Nics. I've added a second dual Intel card in a PCIe slot.
When I run iPerf across this bridge, I max out at about 550Mbit/s. I'm
running systat on the bridge. At peak load, I'm seeing 1500 ~ 1700
interrupts per second for each interface in the bridge via systat.
I'm noticing similar limitations from another OpenBSD 6.8 firewall
that I run. This is an Atom C2758 machine. And in this case, I'm
getting about 650 ~ 700 Mbit/s from the slightly faster hardware.
My questions are:
* Where should I be looking for the bottleneck on this problem?
* Is it possible with tuning to forward packets over this hardware
at full gigabit speeds, ~950 Mbit/s?
Thanks for any help you can give,
-- Chris
--
Chris
__o "All I was trying to do was get home from work."
_`\<,_ -Rosa Parks
___(*)/_(*)____.___o____..___..o...________ooO..._____________________
Christopher Sean Hilton [chris/at/vindaloo/dot/com]
