[Disksim-users] The maximum throughput of disk in DiskSim

[Greg Ganger]

Yes, the times can simply be changed to correspond to the appropriate
bus speed.

Greg


On Fri, 13 Jul 2007, ll2 at rice.edu wrote:

>
> Hi everyone :
>
> Recently, I try to find the maximum throughput of a certain kind of disk.
> However, for one kind of disk model, like Cheetah 9LP, which is included in
> DiskSim, there are different kinds of interface for it, leading to different
> inter transfer rate and different maximum throughput.
>
> For Cheetah 9LP,
> if you use SCSI interface, the maximum transfer rate is 5MB/s.
> if you use Ultra2 SCSI interface, the maximum transfer rate is 40MB/s.
>
> I did not find how I can configure the interface for the disk model. At the same
> time, there are three interesting parameters which may affect the throughput of
> disk :
> "bulk sector transfer time" in **.diskspecs file,
> "Read / Write block transfer time" of Bus in **.parv file,
> "Bulk sector transfer time" of Controller in **.parv file.
>
> I think the max of the three time will determine the maximum throughput of disk.
> For example, DiskSim default set the maximum value of them is 0.1ms, so the
> maximum throughput is 512B/0.1ms = 5MB/s. It seems like DiskSim simulate SCSI
> interface, however, if I want to simulate the Ulrta2 SCSI interface to get
> higher throughput, how I can configure it ? Just change the three time value ??
>
> Is there anybody who has some ideas about this issue ?
>
> Thanks a lot for your comments and suggestions !
>
> Lanyue Lu
> Rice University
> _______________________________________________
> Disksim-users mailing list
> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>