[Disksim-users] Saturation in DISKSIM_malloc()

[Greg Ganger]

Just to add a bit of color: DiskSim (the simulator) doesn't have a problem
with large numbers of requests, but early on we learned that an exploding
number of outstanding requests indicates something wrong -- either an input
trace with an arrival rate far higher than the storage system can serve or
a misconfiguration that results in NO requests completing.  So, we put in
a saturation threshold to avoid extremely long runs with no meaningful
output.

Greg


On Thu, 12 Aug 2010, Tyler Clemons wrote:

> This happens when your request are arriving too soon.  For example, you may issue a large number of requests in a small time interval.  Disksim can't handle all of these requests so the simulation is halted.  A solution would be to increase the time between the requests.
>
> On Aug 12, 2010, at 2:37 AM, yue wrote:
>
>> Hello,
>>         Recently I use the disksim simulation tool' cachedev function, but I confront the error"Stopping simulation because of saturation", so I write to you ask if you handle out your problem and find  the reason.
>>         Hoping  for your reply!
>>         Best regards!
>>
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>