pf deadly slow
Adam McDougall
mcdouga9 at egr.msu.edu
Fri Oct 4 15:40:30 UTC 2013
On 10/04/13 11:28, Stephane D'Alu wrote:
> On 10/04/13 16:48, sven falempin wrote:
>> configure ALTQ (maybe the absence of configurating is not nicely working),
>> i think freebsd has virtio support ,
>
> Yes, since 9.2 virtio drivers are included in base distribution
>
>>
>> i am interested in the result :-)
>
> I switched from virtio to 82545EM (with em driver), and performance are
> back to normal.
>
> Look like a bug / bad interraction between virtio and pf.
> (I don't know if VirtualBox as also a part in it)
>
>> On Fri, Oct 4, 2013 at 9:17 AM, Stephane D'Alu
>> <Stephane.DAlu at insa-lyon.fr <mailto:Stephane.DAlu at insa-lyon.fr>> wrote:
>>
>> I'm running FreeBSD 9.2 inside VirtualBox with virtio for the nework
>> card. pf is compiled with ALTQ support.
>>
>> My pf.conf file is as follow, which do nearly nothing:
>> set skip on lo0
>> set skip on vnet0
>>
>> If pf is enabled, bandwith drop by a 1000 factor!
>> From 10Mb/s to 4Kb/s
>>
>> Any idea, what's going on?
If vnet0 has TSO enabled, can you try disabling it? Possibly with all
other optimizations too. Example: ifconfig vnet0 -tso
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