High interrupt rate on a PF box + performance
Jeremy Chadwick
freebsd at jdc.parodius.com
Thu Jan 27 17:40:39 UTC 2011
On Thu, Jan 27, 2011 at 10:57:14AM +0100, Damien Fleuriot wrote:
> Hello list,
>
> I have a problem with interrupts, network cards, and PF performance.
>
> We have 2 firewalls running FreeBSD 8.0 for the current master and
> FreeBSD 8.1 for the backup host, which I upgraded just yesterday.
>
> [...]
>
> vmstat -i
> ---
> interrupt total rate
> irq14: ata0 36 0
> irq16: mfi0 353244 1
> irq21: uhci0 uhci+ 461504 1
> cpu0: timer 615183815 1996
> irq256: bce0 1015412475 3295
> irq257: igb0 1067318584 3464
> irq258: igb0 695648752 2258
> irq259: igb0 2 0
> irq260: igb1 11503857 37
> irq261: igb1 506598 1
> irq262: igb1 69 0
> irq269: bce1 790820 2
> cpu1: timer 615183757 1996
> cpu2: timer 615197165 1996
> cpu3: timer 615197165 1996
> Total 5252757843 17050
There are changes to the igb(4) driver which are in RELENG_8 (8-STABLE),
and some which will be in the upcoming 8.2-RELEASE, which may address
this. Jack Vogel of Intel would be able to confirm for sure; CC'ing him
here.
Could you please provide output from the following commands?
* pciconf -lvcb (only include igbX entries, thanks)
* sysctl -a | grep msi
Thanks.
I can't help with the CARP-related issues or other stuff you're
experiencing. These issues may all be separate problems, hard to say.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP 4BD6C0CB |
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