MPC8313 performance evaluation

Lutz Jaenicke ljaenicke at
Fri Aug 7 17:48:01 EST 2009

On Thu, Aug 06, 2009 at 02:16:55PM -0500, Kumar Gala wrote:
> On Aug 6, 2009, at 1:00 PM, Lutz Jaenicke wrote:
>> With the MPC8343 at 400MHz I get a throughput of approx. 24500 frames/s
>> using the predefined firewall rules.

>> With the MPC8313 I get a significantly lower value:
>> MPC8313 at 250MHz          12500fps
>> MPC8313 at 333MHz          14500fps
>> MPC8313 at 416MHz          15500fps      (333MHz type, overclocked)

> What DDR frequencies (and width) are you running the 8343 vs 8313 at.   
> This can have a significant impact on performance.

The 8343 is running DDR2 32bit at 266MHz (CSB 266MHz)
The 8313 is running DDR2 32bit at 333MHz (CSB 166MHz)

The test were performed with 128byte frames so that the overall
bandwidth needed is far below even 100Mbit/s.

Best regards,
Dr.-Ing. Lutz Jänicke
Innominate Security Technologies AG  /protecting industrial networks/
tel: +49.30.921028-200
fax: +49.30.921028-020
Rudower Chaussee 13
D-12489 Berlin, Germany

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