The pdf file that you provided was quite helpful to me. thank you so much.

Regards,
Jungwook Kim.

2011/12/20 Mahmood Naderan <[email protected]>

> Hi,
> In O3CPU, there is a pipeline, with register renaming and some other
> things. so each instruction may take some cycles to complete. However in
> atomic model, all operations are done in one tick for an instruction.
>
> For more information, read
> http://www.gem5.org/dist/tutorials/isca_pres_2011.pdf (section "CPU
> Modeling
> ")
> --
> // Naderan *Mahmood;
>
>
> On Tue, Dec 20, 2011 at 10:52 AM, Jungwook Kim <[email protected]> wrote:
>
>> Hi, all
>> I'm wondering that some result values are different between o3 (detailed)
>> mode and normal (atomic) mode in full system simulation.
>> for example, in stats.txt file,
>> the value of "system.cpu0.icache.overall_miss_rate" is 0.012472 in atomic
>> cpu mode but in detailed mode, the value is 0.071092.
>> also, the value of "system.cpu0.numCycles" is 3646715099 in atomic mode
>> but the value is 2133833981 in detailed mode.
>> which value is correct ?
>> my simulation parameters are as follows.
>> build/ARM_FS/gem5.fast configs/example/fs.py -d -n 2 --caches --l2cache
>> -b bench_name ( detailed mode )
>> build/ARM_FS/gem5.fast configs/example/fs.py -n 2 --caches --l2cache -b
>> bench_name ( normal mode )
>>
>>
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>
>
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