[LITMUS^RT] high miss ratio for low task utilization

[jp walters]

It looks like our emails crossed.



Make sure you give the tool all
> per-CPU files together to analyze the complete trace. The data below looks
> like per-CPU data (huge gaps in the job sequence numbers).
>

Okay, that was my first issue.  Redoing this using all of the per-CPU files
I also see no tardiness or deadline misses, but I also don't get any of the
names, periods, or costs:

root at ubuntu-qemu:~/simple# grep "NAME=" trace_output
# task NAME=<unknown> PID=3974 COST=0 PERIOD=0 CPU=-1
# task NAME=<unknown> PID=3973 COST=0 PERIOD=0 CPU=-1
# task NAME=<unknown> PID=3972 COST=0 PERIOD=0 CPU=-1

JP





> # Task,   Job,     Period,   Response, DL Miss?,   Lateness,  Tardiness
> # task NAME=<unknown> PID=3802 COST=0 PERIOD=0 CPU=-1
>   3802,     9,          0,   30657540,        0,  -29342460,          0
>   3802,    13,          0,   32616504,        0,  -27383496,          0
>   3802,    39,          0,   30793032,        0,  -29206968,          0
>   3802,    89,          0,   29259038,        0,  -30740962,          0
>   3802,    93,          0,   29860287,        0,  -30139713,          0
>   3802,    97,          0,   29485435,        0,  -30514565,          0
>   3802,   101,          0,   30333923,        0,  -29666077,          0
>   3802,   131,          0,   30122722,        0,  -29877278,          0
>   3802,   135,          0,   30649661,        0,  -29350339,          0
> # task NAME=<unknown> PID=3801 COST=0 PERIOD=0 CPU=-1
>
>
> This looks totally ok. All jobs in this trace have zero tardiness /
> negative lateness and met their deadlines. I don't see a problem here.
>
> - Björn
>
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>
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