Re: High Network Perfomance

From: Mike Tancsa <mike_at_sentex.net>
Date: Mon, 08 Aug 2011 12:28:12 -0400
On 8/8/2011 12:21 PM, Victor Detoni wrote:
> Hi Slawa!
> 
> Thanks for the links! That's great links!
> 
> about russian, there is no problem... google translate :)

Yes, excellent links indeed and google translate is awesome!

One further question.  Do you usually set

net.isr.bindthreads=1


	---Mike
> 
> 
> thanks,
> Victor
> 
> On Sun, Aug 7, 2011 at 9:33 AM, Slawa Olhovchenkov <slw_at_zxy.spb.ru> wrote:
> 
>> On Thu, Aug 04, 2011 at 08:39:17PM -0300, Victor Detoni wrote:
>>
>>> Hi Guys,
>>>
>>> I'm trying tunning a FreeBSD 8.2 to high perfomance network with pf. My
>>> server configuration is:
>>>
>>> Dell 1950
>>> CPU: Intel(R) Xeon(R) CPU            5130  _at_ 2.00GHz (1995.03-MHz
>> K8-class
>>> CPU)
>>> 4 x CPU
>>> 2 NIC (<Broadcom NetXtreme II BCM5708 1000Base-T)
>>> 1 NIC (em0: <Intel(R) PRO/1000 Network Connection 7.1.9>)
>>>
>>> I want to reach the high processing of packets per second and use pf as
>>> synproxy and we still processor to handle others packets or flows.
>>>
>>> I know that em drivers has MULTI_QUEUE implementation that helps high
>>> performance for Intel drivers, but I couldn't see more information about.
>> We
>>> can reached 500k pps, but no more traffic was processed by this
>> interface.
>>>
>>> I've already enabled net.isr.direct but with Intel Drivers does not work
>> and
>>> the most processors are in System instead of Interrupts, why? When I
>> enable
>>> net.isr.direct the processing is balanced for on CPU in system and
>> another
>>> in interrupt and I reached 1M pps, but the total perfomance is down, the
>>> load grow up too fast.
>>>
>>> I've changed some parameter in sysctl for intel drivers, but it doesn't
>> have
>>> effect.
>>>
>>> Someone know what I can do to reach more packets performance? I want to
>> use
>>> this FreeBSD as a router/firewall only.
>>
>> FreeBSD (and em) need some tuning for high perfomance.
>>
>> Next links in russian, sorry.
>>
>> http://dadv.livejournal.com/138951.html
>> http://dadv.livejournal.com/139170.html
>> http://dadv.livejournal.com/139366.html
>>
>> --
>> Slawa Olhovchenkov
>>
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> 


-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike_at_sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/
Received on Mon Aug 08 2011 - 14:28:22 UTC

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