Re: 10GE Click performance

Some more interesting tidbits of data.  If I run release 1.8, I get the 
speed I need.  However, after release 2.0, the problem starts to 
manifest itself.

Roman

On 01.18.2012 15:05, rchertov wrote:
> Ok, I got some numbers finally.
> I have two dual socket quad core Intel(R) Xeon(R) CPU E5450  @ 
> 3.00GHz
> boxes with Myricom 10GE cards
> using SR transceivers running patched linux 2.6.24.7.  The myricom
> driver is the one included in the 2.6.24.7 kernel.
>
> Topology:
> Src -> Dst;
>
> Source config:
> src1 :: RatedSource(LENGTH 2112, RATE 400000, LIMIT 24000000)
>      -> UDPIPEncap(SRC 10.1.1.4, SPORT 6667, DST 10.1.1.2, DPORT 
> 6667)
>      -> EtherEncap(0x0800, 00:60:DD:47:94:2A, 00:15:17:7C:E4:A1)
>      -> ctr :: AverageCounter
>      -> ToDevice(eth2, BURST 16);
>
> Destination config:
>  FromDevice(eth2, PROMISC true, BURST 512) -> ctr :: AverageCounter 
> ->
> Discard;
>
>
> Source 2.0.1 Destination 2.0.1 (its actually from yesterday's git 
> pull)
> Src rate: 204364 count 24000000
> Dst rate: 204364 count 23977282
>
> Source 1.7.0rc1 Destination 2.0.1
> Src rate: 400000 count 24000000
> Dst rate: 264502 count 15869088
>
> Source 1.7.0rc1 Destination 1.7.0rc1
> Src rate: 400000 count 24000000
> Dst rate: 400000 count 23999893
>
> Source 2.0.1 Destination 1.7.0rc1
> Src rate: 400000 count 24000000
> Dst rate: 400000 count 23999750
>
> So based on the runs, it appears the issue is with packet reception 
> in
> the current version of Click compared to 1.7.0rc1.  It is also not 
> clear
> to me as to why the sending rate is reduced when both machines run 
> 2.0.1
> click.
>
> Roman
>
> On 01.18.2012 08:02, Eddie Kohler wrote:
>> Well, shoot. This performance degradation is unfortunate.
>>
>> There are two questions:
>> 1. Why is performance low (~300Kpps or less)?
>> 2. Why has performance gotten worse (300->200)?
>>
>> Let's attack #2 first.
>>
>> Has a non-Device configuration, such as InfiniteSource->Idle, slowed
>> down?
>>
>> Eddie
>>
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