Dear linux-mips:
Thanks!
So,Could I think that BCM1250 is not a type of high performance CPU? as in ARM
or Power PC ARCH system,Bogomips is almost equal to CPU clock frequency.Is
there any way to inprove it with software?
Regards!
======= 2004-11-13 22:01:00 您在来信中写道：=======
>
>
>macrohat wrote:
>
>>Hello linux-mips:
>>
>>I have a question to ask you: why BCM1250 CPU Bogomips is so much lower than
>>CPU clock frequency,such as:
>>CPU 700MHz - 465.30 Bogomips, CPU 800MHZ - 532.48 BogoMIPS.And i find out
>>that CPU Bogomips is a fixed value regardless L2 cache open or closed,
>>
>>
>>
>This indicates the ALU ops of that CPU have more than one cycle latency.
>To achieve higher frequency,
>the pipeline is becoming longer...
>
>Bogomips calculation is a short loop which fits well in L1 caches, so L2
>won't affect the performance.
>
>>Enclosed is the log from the console
>>
>>Regards!
>>
>>
>> macrohat
>> emblinux@macrohat.com
>> 2004-11-13
>>
>>
macrohat
emblinux@macrohat.com
2004-11-13
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