[Click] Click SMP performance

[Brecht Vermeulen]

and do you load the SMP click with something like

insmod click threads=2  (or 4 in your case ;-) )

regards,
Brecht

louati wrote:
> Hi Robert,
> 
> I have installed click SMP (with --enable-multithread) on a multi-processor
> plateform (4 CPU Intel XEON(TM) Processor MP 1.50GHz, 2 G RAM ).
> So, I have really 4 CPU Xeon, and with the Hyper-Threading Technology , i
> can obtain 8 logical processors.
> 
> The Pentium 4 uniprocessor (2,4 GHZ, RAM 2G DDR) is a different machine and
> not the same SMP machine with 3 CPUs.
> 
> 
> I use "Intel PRO/1000 MT Dual Port Server Adapter" gbit cards. They are 64
> bits wide.
> 
> I have installed 2 " Dual Port " gbit cards on each machine (uniprocessor
> and multi-processor). So, each card contains 2 ports Gbit. In the result, I
> obtain 4 cards gbits on each machine.
> 
> The PCI bus of the multi-processor :
> 
>   a.. PCI Bus width : 64 bit
>   b.. PCI Bus Speed : 100 Mhz
> The PCI bus of the uniprocessor :
> 
>   a.. PCI Bus width : 32 bit  =>  So, I have 64 wide card sitting in a 32
> bit slot.
>   b.. PCI Bus Speed : 33 Mhz
> Firstly, i try to use this two machines as a generator source:
> 
> When I run udpgenerator.click on the uniprocessor, I am using click compiled
> for uniprocessor. For the multi-processor I am using click compiled for SMP.
> 
> So, I try to generate 600 000 UDP packets (64 bytes) per second with this
> click configuration :
> 
> // Generated by make-udpgen.pl
> 
> ar :: ARPResponder(157.159.100.30  00:07:E9:1A:B7:CA);
> 
> udph :: UDPIPEncap(157.159.100.30, 1234, 157.159.103.25, 1234, 1);
> 
> ethh :: EtherEncap(0x800, 00:07:E9:1A:B7:CA, 00:07:E9:1A:Ba:dd);
> 
> c0 :: Classifier(12/0806 20/0001, -);
> 
> pd :: PollDevice(eth1);
> 
> td :: ToDevice(eth1);
> 
> out :: Queue(8192) -> td;
> 
> tol :: ToHost;
> 
> pd -> [0]c0;
> 
> c0[0] -> ar -> out;
> 
> c0[1] -> tol;
> 
> rs :: RatedSource(\<00000000111111112222222233333333444444445555>, 600000 ,
> 600000);
> 
> rs  -> udph
> 
>     -> ethh
> 
>      -> AverageCounter
> 
>       -> out;
> 
> // ticket for RatedSoure must be smaller so it won't overflow the queue
> 
> ScheduleInfo(td 1, pd .1, rs .1);
> 
> 
> 
> The maximum throughput it can generate by the multiprocessor is 230 000 p/s
> and i obtain 450 000 p/s for the uniprocessor.
> 
> 
> 
> Now, when i try to use this two machines as a router:
> 
> The Maximum loss-free forwarding rates (MLFFR) of the uniprocessor is : 422
> 000 p/s (64 bytes)   (The source generates 600 000 p/s)
> 
> And the MLFFR of the multiprocessor is : 360 000 p/s (64 bytes) !!!
> 
> 
> 
> what's the problem with my click SMP configuration?
> 
> Thank you very much for your help
> 
> Wajdi
> 
> 
> 
> ----- Original Message -----
> 
> From: "Robert Morris" <rtm at amsterdam.lcs.mit.edu>
> To: "louati" <wajdi.louati at int-evry.fr>
> Cc: <click at amsterdam.lcs.mit.edu>
> Sent: Thursday, November 20, 2003 5:08 PM
> Subject: Re: [Click] Click SMP performance
> 
> 
> 
>>Louati,
>>
>>Can you send us a copy of udpgenerator.click?
>>
>>What kind of Ethernet cards are you using? How many ethernet cards?
>>What kind of PCI -- 64 bit? 66 mHz? What kind of memory system?
>>
>>Is your Pentium 4 uniprocessor the same SMP machine with 3 CPUs
>>disabled, or a different machine?
>>
>>When you run udpgenerator.click on the uniprocessor, are you using
>>click compiled for uniprocessor or SMP? That is, did you compile with
>>--enable-multithread?
>>
>>Why do you believe that you should be able to generate 600,000 UDP
>>packets per second?
>>
>>Thanks,
>>Robert
>>
> 
> 
>>>From: "louati" <wajdi.louati at int-evry.fr>
>>>To: <click at amsterdam.lcs.mit.edu>
>>>Date: Thu, 20 Nov 2003 16:53:54 +0100
>>>Subject: [Click] Click SMP performance
>>>
>>>Hi all,
>>>
>>>I have installed click SMP on a multi-processor plateform (4 CPU Intel =
>>>XEON(TM) Processor MP 1.50GHz).
>>>
>>>I try to generate 600 000 UDP packets per second with a click =
>>>configuration (udpgenerator.click)
>>>
>>>So if i run :
>>>
>>>Click-install -t 4 udpgenerator.click
>>>
>>>The maximum throughput it can generate is 230 000 p/s ! ! !
>>>
>>>When i try to install the same click configuration on Pentium 4 =
>>>Uniprocessor 1,5 GHZ ; it can generate 430 000 p/s (max).
>>>
>>>I think that i have some problemes with Click SMP performance !  =20
>>>
>>>Can you help me !
>>>
>>>Think you very much
>>>
>>>Wajdi
>>>
>>
> 
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