virtio problems (was: pf deadly slow)

[Stephane D'Alu]

Now that I switched from virtio to 82545EM all my networking problems
disappeared.

Appart from pf, I had also some other small networking problems that I
thought were apache/php related, but were in fact due to virtio.

virtio is clearly the culprit, but I can't say if it is FreeBSD or
VirtualBox related

Guest: FreeBSD 9.2 amd64
Host : FreeBSD 9.2 amd64
VM   : VirtualBox 4.2.18

I can provide more information, if you tell me what to look for.



On 10/04/13 17:28, 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)
> 
>>  
>>  
>> OpenBSD  is currently completly rewriting the queing system
>> and improving performance.
>>  
>>  
>>
>>
>> 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?
>>
>>
>>     PS:
>>     - I have the same kind of configuration FreeBSD 9.2, pf + ALTQ
>>     and real firewall rules on a non virtualized server and everything
>>     is fine.
>>     - I will try to remove ALTQ and use em driver instead, to see if there
>>     is a performance improvement
>>
>>     Sincerly
>>     --
>>     Stephane D'Alu -- Ingenieur Recherche
>>     Laboratoire CITI / INSA-Lyon
>>     Tel: +33 47243 6483 <tel:%2B33%2047243%206483>
>>     _______________________________________________
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>>
>>
>>
>>
>> -- 
>> ---------------------------------------------------------------------------------------------------------------------
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> 
> 


-- 
Stephane D'Alu -- Ingenieur Recherche
Laboratoire CITI / INSA-Lyon
Tel: +33 47243 6483