[Disksim-users] Scheduling Algorithm

[Lanyue Lu]

Hi,

cheetah4LP disk only has on-disk queue length 1, so no matter what 
scheduling algorithm used, the performance is the same.

You can observe different performance by changing the on-disk maximal 
queue length in diskspecs file.

best,

Lanyue Lu


Raul wrote:
> Hello,
>
> I´m testing Disk response Time with cheetah4LP.
>
> By default the scheduling algorithm in diskspecs is 1 FCFS, I changed 
> this value to 7 to test SSTF Disk response TIme but the results are 
> the same:
>
> 100 consecutive requests , read size = 1blk ===> Disk response Time = 
> 0.224548
> 100 non consecutive requests, read size = 1blk ===> Disk Response Time 
> = 1.245206
>
>
> is It correct?
>
> must I change de size if request to see changes in times??
>
> thank you
>
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