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@xxxxxxxxxxxx >> 2004-11-13 >> >> macrohat emblinux@xxxxxxxxxxxx 2004-11-13
