[Disksim-users] A question about time-limited request

[Greg Ganger]

Yes, I think you should be able to do that, using the parameters as
described in the guide.  Good luck!

Greg


On Tue, 11 Jun 2013, q q wrote:

> Dear Dr Ganger,
>
> Thank you very much for your prompt response.
>
> This is what I want to do with the synthetic workload generator.
> There are two generators - A and B. Both of them generate
> time-critical requests with probability of 1.0. Generator A generates
> the next request immediately once a request is serviced. Generator B
> waits for 2000 ms to generate the next request after a request is
> serviced. Can I do this using the synthetic workload generator? If
> yes, how?
>
> BTW, I don't think I can do it with the "Think time from request to
> return" option of disksim_synthio because that is a global option for
> all generators.
>
> Looking forward to hearing from you. Thank you very much
>
> On Tue, Jun 11, 2013 at 10:07 PM, Greg Ganger <ganger at ece.cmu.edu> wrote:
>>
>>
>> No.  If it finishes before the time limit, its generator doesn't block
>> waiting on it.  Think of it like a prefetch, for example, where the
>> reader only blocks if the prefetch doesn't finish before the reader
>> actually needs the data.
>>
>> Greg
>>
>>
>>
>> On Tue, 11 Jun 2013, q q wrote:
>>
>>> If a time-limited request is serviced before its time limit, does the
>>> generator process block and wait till the end of the time limit before
>>> generating the next request?
>>>
>>> Thank you.
>>>
>>> On Page 42 of the Disksim 4.0 manual,
>>>
>>> Probability of time-limited request
>>> "This specifies the probability that a generated request is
>>> time-limited. That is, the corresponding generator process “blocks”
>>> and waits for the request to complete (if it is not already complete)
>>> after a given amount of think time (specified by the below “time
>>> limit” parameters) [5, 2]."
>>> _______________________________________________
>>> Disksim-users mailing list
>>> Disksim-users at ece.cmu.edu
>>> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>
>