[Disksim-users] Why only few trace(244) were handled when I tried to run 10000 traces.

[leon hsu]

Dear All,
I use the disksim && ssdsim for two months. I try to use them at the same
time. But there is something weired. I use 10'000 traces or synthetic trace
generator to test the system. Only a few traces at the beginning of trace
file, more or less 200, were handled when the simulator stopped. I don't
know why. Does anybody have similar experience? Please let me know. So
appreciate.

I attach the relevant files so that some helper could take a look. Also,
here is the link to my project:
https://www.dropbox.com/sh/nhavksi2jx5zfdg/Y8OFYsO4ux


I write down all the problems on the "readme at first.txt". It is too long,
so I put them into one file according to your suggestion. The folder
HybridDiskSim is the project I am using. And my host operating system is
Ubuntu 12.04 LTS.
link to dropbox:
https://www.dropbox.com/sh/nhavksi2jx5zfdg/Y8OFYsO4ux



 (1) When I use the synthetic trace for SSD, the number of maximum traces
handled is 244. I don't know why.
     the command I used like:
     ./src/disksim example_ssd.parv example_ssd.outv ascii 0 1

     I record the synthetic trace into the file synthetic_ssd.trace.  The
last item in this trace seems weird(Both SSD and HDD).
     It should be 0 or 1, but the value is 400000003

      0.000000    1    31853640    8    3
            0.132504    1    31853648    8    40000003
            0.265008    1    31853656    8    40000003
            0.397512    1    31853664    8    40000003
            0.530016    1    31853672    8    40000003
            0.662520    1    31853680    8    40000003
      ...........................



   also, the ssd statistics is weird. Only 43 requests handled.
Furthermore, all of 43 requests are read. No one write.



           SSD STATISTICS
        ---------------------

        ssd Total Requests handled:    43
        ssd Requests per second:       0.850811
        ssd Completely idle time:      531.769600       0.010522
        ssd Response time average:     0.133301
        ssd Response time std.dev.:    0.001549
        ssd Response time maximum:    0.140120
        ssd Response time distribution
           <  5    < 10    < 20    < 40    < 60    < 90    <120    <150
<200    200+
             43       0       0       0       0       0       0
0       0       0
        ssd Overlaps combined:         0    0.000000
        ssd Read overlaps combined:    0    0.000000    0.000000
        ssd Critical Reads:              43      0.977273
        ssd Critical Read Response time average:     0.133301
        ssd Critical Read Response time std.dev.:    0.001549
        ssd Critical Read Response time maximum:    0.140120
        ssd Critical Read Response time distribution



Leon


<732.789.6683>

Email: liangxiongxu at gmail.com
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