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>Appendix B. Real-time characterization</TD
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NAME="RT-ARM-IQ80310">Board: Intel IQ80310 XScale Development Kit</H1
NAME="RT-ARM-IQ80310">Board: Intel IQ80310 XScale Development Kit</H1
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>Board: Intel IQ80310 XScale Development Kit
>Board: Intel IQ80310 XScale Development Kit
 
 
CPU: Intel XScale 600MHz
CPU: Intel XScale 600MHz
 
 
 
 
Startup, main stack             : stack used   388 size  2400
Startup, main stack             : stack used   388 size  2400
Startup              :  Interrupt stack used   148 size  4096
Startup              :  Interrupt stack used   148 size  4096
Startup              : Idlethread stack used    76 size  1120
Startup              : Idlethread stack used    76 size  1120
 
 
eCos Kernel Timings
eCos Kernel Timings
Notes: all times are in microseconds (.000001) unless otherwise stated
Notes: all times are in microseconds (.000001) unless otherwise stated
 
 
Reading the hardware clock takes 73 'ticks' overhead
Reading the hardware clock takes 73 'ticks' overhead
... this value will be factored out of all other measurements
... this value will be factored out of all other measurements
Clock interrupt took   12.11 microseconds (399 raw clock ticks)
Clock interrupt took   12.11 microseconds (399 raw clock ticks)
 
 
Testing parameters:
Testing parameters:
   Clock samples:            32
   Clock samples:            32
   Threads:                  64
   Threads:                  64
   Thread switches:         128
   Thread switches:         128
   Mutexes:                  32
   Mutexes:                  32
   Mailboxes:                32
   Mailboxes:                32
   Semaphores:               32
   Semaphores:               32
   Scheduler operations:    128
   Scheduler operations:    128
   Counters:                 32
   Counters:                 32
   Alarms:                   32
   Alarms:                   32
 
 
 
 
                                 Confidence
                                 Confidence
     Ave     Min     Max     Var  Ave  Min  Function
     Ave     Min     Max     Var  Ave  Min  Function
  ======  ======  ======  ====== ========== ========
  ======  ======  ======  ====== ========== ========
    6.53    5.48    8.55    0.50   53%  23% Create thread
    6.53    5.48    8.55    0.50   53%  23% Create thread
    0.37    0.03    3.24    0.18   87%   1% Yield thread [all suspended]
    0.37    0.03    3.24    0.18   87%   1% Yield thread [all suspended]
    0.24    0.00    2.06    0.12   87%   1% Suspend [suspended] thread
    0.24    0.00    2.06    0.12   87%   1% Suspend [suspended] thread
    0.25    0.00    0.73    0.06   71%   1% Resume thread
    0.25    0.00    0.73    0.06   71%   1% Resume thread
    0.36    0.09    0.82    0.10   89%   1% Set priority
    0.36    0.09    0.82    0.10   89%   1% Set priority
    0.03    0.00    0.42    0.05   90%  90% Get priority
    0.03    0.00    0.42    0.05   90%  90% Get priority
    1.07    0.52    6.39    0.18   92%   1% Kill [suspended] thread
    1.07    0.52    6.39    0.18   92%   1% Kill [suspended] thread
    0.33    0.06    0.91    0.08   78%   3% Yield [no other] thread
    0.33    0.06    0.91    0.08   78%   3% Yield [no other] thread
    0.55    0.03    1.06    0.09   85%   1% Resume [suspended low prio] thread
    0.55    0.03    1.06    0.09   85%   1% Resume [suspended low prio] thread
    0.28    0.00    1.79    0.11   84%   4% Resume [runnable low prio] thread
    0.28    0.00    1.79    0.11   84%   4% Resume [runnable low prio] thread
    0.43    0.00    1.00    0.12   76%   1% Suspend [runnable] thread
    0.43    0.00    1.00    0.12   76%   1% Suspend [runnable] thread
    0.31    0.00    1.24    0.09   82%   4% Yield [only low prio] thread
    0.31    0.00    1.24    0.09   82%   4% Yield [only low prio] thread
    0.21    0.00    0.42    0.04   73%   1% Suspend [runnable-&#62;not runnable]
    0.21    0.00    0.42    0.04   73%   1% Suspend [runnable-&#62;not runnable]
    1.00    0.88    1.45    0.04   78%   4% Kill [runnable] thread
    1.00    0.88    1.45    0.04   78%   4% Kill [runnable] thread
    0.59    0.42    3.97    0.13   81%  87% Destroy [dead] thread
    0.59    0.42    3.97    0.13   81%  87% Destroy [dead] thread
    1.43    1.27    1.94    0.07   78%   7% Destroy [runnable] thread
    1.43    1.27    1.94    0.07   78%   7% Destroy [runnable] thread
    3.12    2.58    5.09    0.33   56%  34% Resume [high priority] thread
    3.12    2.58    5.09    0.33   56%  34% Resume [high priority] thread
    0.87    0.36    1.39    0.07   86%   0% Thread switch
    0.87    0.36    1.39    0.07   86%   0% Thread switch
 
 
    0.15    0.00    1.39    0.21   81%  81% Scheduler lock
    0.15    0.00    1.39    0.21   81%  81% Scheduler lock
    0.16    0.00    0.64    0.08   85%   7% Scheduler unlock [0 threads]
    0.16    0.00    0.64    0.08   85%   7% Scheduler unlock [0 threads]
    0.16    0.00    0.64    0.08   75%   8% Scheduler unlock [1 suspended]
    0.16    0.00    0.64    0.08   75%   8% Scheduler unlock [1 suspended]
    0.16    0.00    0.70    0.08   78%   6% Scheduler unlock [many suspended]
    0.16    0.00    0.70    0.08   78%   6% Scheduler unlock [many suspended]
    0.16    0.00    0.64    0.07   81%   4% Scheduler unlock [many low prio]
    0.16    0.00    0.64    0.07   81%   4% Scheduler unlock [many low prio]
 
 
    0.45    0.00    1.39    0.34   56%  46% Init mutex
    0.45    0.00    1.39    0.34   56%  46% Init mutex
    0.43    0.18    3.27    0.23   87%  87% Lock [unlocked] mutex
    0.43    0.18    3.27    0.23   87%  87% Lock [unlocked] mutex
    0.48    0.09    3.88    0.26   84%  71% Unlock [locked] mutex
    0.48    0.09    3.88    0.26   84%  71% Unlock [locked] mutex
    0.35    0.21    2.24    0.21   87%  84% Trylock [unlocked] mutex
    0.35    0.21    2.24    0.21   87%  84% Trylock [unlocked] mutex
    0.26    0.00    0.67    0.13   78%   9% Trylock [locked] mutex
    0.26    0.00    0.67    0.13   78%   9% Trylock [locked] mutex
    0.21    0.00    1.27    0.24   78%  75% Destroy mutex
    0.21    0.00    1.27    0.24   78%  75% Destroy mutex
    2.58    2.09    3.09    0.13   75%   9% Unlock/Lock mutex
    2.58    2.09    3.09    0.13   75%   9% Unlock/Lock mutex
 
 
    0.99    0.21    2.48    0.41   65%  28% Create mbox
    0.99    0.21    2.48    0.41   65%  28% Create mbox
    0.04    0.00    0.39    0.07   90%  87% Peek [empty] mbox
    0.04    0.00    0.39    0.07   90%  87% Peek [empty] mbox
    0.47    0.27    3.48    0.29   90%  78% Put [first] mbox
    0.47    0.27    3.48    0.29   90%  78% Put [first] mbox
    0.02    0.00    0.39    0.03   90%  90% Peek [1 msg] mbox
    0.02    0.00    0.39    0.03   90%  90% Peek [1 msg] mbox
    0.29    0.15    0.58    0.04   68%   3% Put [second] mbox
    0.29    0.15    0.58    0.04   68%   3% Put [second] mbox
    0.02    0.00    0.45    0.04   93%  93% Peek [2 msgs] mbox
    0.02    0.00    0.45    0.04   93%  93% Peek [2 msgs] mbox
    0.48    0.21    3.67    0.26   84%  87% Get [first] mbox
    0.48    0.21    3.67    0.26   84%  87% Get [first] mbox
    0.35    0.09    0.82    0.11   75%   3% Get [second] mbox
    0.35    0.09    0.82    0.11   75%   3% Get [second] mbox
    0.50    0.21    3.18    0.33   90%  68% Tryput [first] mbox
    0.50    0.21    3.18    0.33   90%  68% Tryput [first] mbox
    0.39    0.15    1.39    0.19   78%  68% Peek item [non-empty] mbox
    0.39    0.15    1.39    0.19   78%  68% Peek item [non-empty] mbox
    0.43    0.18    3.33    0.23   87%  90% Tryget [non-empty] mbox
    0.43    0.18    3.33    0.23   87%  90% Tryget [non-empty] mbox
    0.28    0.03    0.79    0.06   68%   3% Peek item [empty] mbox
    0.28    0.03    0.79    0.06   68%   3% Peek item [empty] mbox
    0.28    0.21    0.58    0.05   71%  65% Tryget [empty] mbox
    0.28    0.21    0.58    0.05   71%  65% Tryget [empty] mbox
    0.01    0.00    0.36    0.02   96%  90% Waiting to get mbox
    0.01    0.00    0.36    0.02   96%  90% Waiting to get mbox
    0.05    0.00    0.45    0.09   87%  84% Waiting to put mbox
    0.05    0.00    0.45    0.09   87%  84% Waiting to put mbox
    0.42    0.09    2.88    0.20   84%  12% Delete mbox
    0.42    0.09    2.88    0.20   84%  12% Delete mbox
    1.39    1.27    2.39    0.14   87%  87% Put/Get mbox
    1.39    1.27    2.39    0.14   87%  87% Put/Get mbox
 
 
    0.35    0.00    1.36    0.45   75%  68% Init semaphore
    0.35    0.00    1.36    0.45   75%  68% Init semaphore
    0.19    0.00    0.45    0.04   81%   3% Post [0] semaphore
    0.19    0.00    0.45    0.04   81%   3% Post [0] semaphore
    0.25    0.21    0.88    0.06   84%  81% Wait [1] semaphore
    0.25    0.21    0.88    0.06   84%  81% Wait [1] semaphore
    0.32    0.06    1.79    0.21   78%  68% Trywait [0] semaphore
    0.32    0.06    1.79    0.21   78%  68% Trywait [0] semaphore
    0.20    0.00    0.52    0.06   62%   3% Trywait [1] semaphore
    0.20    0.00    0.52    0.06   62%   3% Trywait [1] semaphore
    0.07    0.00    0.45    0.10   84%  81% Peek semaphore
    0.07    0.00    0.45    0.10   84%  81% Peek semaphore
    0.06    0.00    0.52    0.06   71%  78% Destroy semaphore
    0.06    0.00    0.52    0.06   71%  78% Destroy semaphore
    1.45    1.42    1.79    0.04   87%  87% Post/Wait semaphore
    1.45    1.42    1.79    0.04   87%  87% Post/Wait semaphore
 
 
    0.70    0.00    2.88    0.47   43%  34% Create counter
    0.70    0.00    2.88    0.47   43%  34% Create counter
    0.05    0.00    0.42    0.09   87%  84% Get counter value
    0.05    0.00    0.42    0.09   87%  84% Get counter value
    0.02    0.00    0.45    0.04   93%  93% Set counter value
    0.02    0.00    0.45    0.04   93%  93% Set counter value
    0.38    0.12    0.58    0.06   59%   3% Tick counter
    0.38    0.12    0.58    0.06   59%   3% Tick counter
    0.03    0.00    0.48    0.05   93%  78% Delete counter
    0.03    0.00    0.48    0.05   93%  78% Delete counter
 
 
    1.10    0.39    4.30    0.47   62%  53% Create alarm
    1.10    0.39    4.30    0.47   62%  53% Create alarm
    0.58    0.03    3.12    0.18   87%   3% Initialize alarm
    0.58    0.03    3.12    0.18   87%   3% Initialize alarm
    0.04    0.00    0.42    0.07   90%  90% Disable alarm
    0.04    0.00    0.42    0.07   90%  90% Disable alarm
    0.54    0.36    1.36    0.12   84%  43% Enable alarm
    0.54    0.36    1.36    0.12   84%  43% Enable alarm
    0.03    0.00    0.70    0.06   84%  84% Delete alarm
    0.03    0.00    0.70    0.06   84%  84% Delete alarm
    0.50    0.24    0.97    0.08   84%   6% Tick counter [1 alarm]
    0.50    0.24    0.97    0.08   84%   6% Tick counter [1 alarm]
    5.30    5.12    5.97    0.14   84%  75% Tick counter [many alarms]
    5.30    5.12    5.97    0.14   84%  75% Tick counter [many alarms]
    0.82    0.64    1.36    0.11   78%  43% Tick &#38; fire counter [1 alarm]
    0.82    0.64    1.36    0.11   78%  43% Tick &#38; fire counter [1 alarm]
   14.13   13.85   14.55    0.09   78%   3% Tick &#38; fire counters [&#62;1 together]
   14.13   13.85   14.55    0.09   78%   3% Tick &#38; fire counters [&#62;1 together]
    5.56    5.45    6.00    0.09   78%  71% Tick &#38; fire counters [&#62;1 separately]
    5.56    5.45    6.00    0.09   78%  71% Tick &#38; fire counters [&#62;1 separately]
    9.69    9.45   12.52    0.22   64%  71% Alarm latency [0 threads]
    9.69    9.45   12.52    0.22   64%  71% Alarm latency [0 threads]
    9.98    9.48   12.76    0.23   69%  14% Alarm latency [2 threads]
    9.98    9.48   12.76    0.23   69%  14% Alarm latency [2 threads]
   10.38    9.48   24.67    0.59   74%  45% Alarm latency [many threads]
   10.38    9.48   24.67    0.59   74%  45% Alarm latency [many threads]
   11.72   11.30   21.33    0.32   81%  58% Alarm -&#62; thread resume latency
   11.72   11.30   21.33    0.32   81%  58% Alarm -&#62; thread resume latency
 
 
    1.87    1.82   10.42    0.00            Clock/interrupt latency
    1.87    1.82   10.42    0.00            Clock/interrupt latency
 
 
    3.02    2.58    7.67    0.00            Clock DSR latency
    3.02    2.58    7.67    0.00            Clock DSR latency
 
 
    9       0     260  (main stack:   776)  Thread stack used (1120 total)
    9       0     260  (main stack:   776)  Thread stack used (1120 total)
All done, main stack            : stack used   776 size  2400
All done, main stack            : stack used   776 size  2400
All done             :  Interrupt stack used   268 size  4096
All done             :  Interrupt stack used   268 size  4096
All done             : Idlethread stack used   244 size  1120
All done             : Idlethread stack used   244 size  1120
 
 
Timing complete - 30300 ms total
Timing complete - 30300 ms total
 
 
PASS:&lt;Basic timing OK&#62;
PASS:&lt;Basic timing OK&#62;
EXIT:&lt;done&#62;
EXIT:&lt;done&#62;
 
 
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