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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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>Board: Intel SA1100 (Brutus)</TITLE
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>eCos User Guide</TH
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>Prev</A
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><TD
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>Appendix B. Real-time characterization</TD
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NAME="RT-ARM-BRUTUS">Board: Intel SA1100 (Brutus)</H1
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><PRE
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CLASS="LITERALLAYOUT"
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>Board: Intel SA1100 (Brutus)
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CPU :  StrongARM 221.2 MHz
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Microseconds for one run through Dhrystone:     3.3
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Dhrystones per Second:                        306748.5
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VAX MIPS rating =    174.586
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Startup, main stack             : stack used   404 size  2400
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Startup              :  Interrupt stack used   136 size  4096
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Startup              : Idlethread stack used    87 size  2048
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eCos Kernel Timings
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Notes: all times are in microseconds (.000001) unless otherwise stated
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Reading the hardware clock takes 0 `ticks' overhead
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... this value will be factored out of all other measurements
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Clock interrupt took    3.09 microseconds (11 raw clock ticks)
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Testing parameters:
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   Clock samples:            32
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   Threads:                  64
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   Thread switches:         128
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   Mutexes:                  32
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   Mailboxes:                32
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   Semaphores:               32
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   Scheduler operations:    128
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   Counters:                 32
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   Alarms:                   32
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                                 Confidence
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     Ave     Min     Max     Var  Ave  Min  Function
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  ======  ======  ======  ====== ========== ========
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    6.63    5.43   18.99    0.77   70%  37% Create thread
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    0.83    0.81    2.17    0.04   98%  98% Yield thread [all suspended]
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    1.27    0.81    5.15    0.30   68%  73% Suspend [suspended] thread
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    1.25    0.81    5.15    0.25   82%   1% Resume thread
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    1.52    1.09    7.87    0.30   78%  75% Set priority
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    0.97    0.54    2.71    0.28   64%  51% Get priority
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    3.45    2.71   19.53    0.66   84%  76% Kill [suspended] thread
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    0.90    0.81    6.24    0.17   98%  98% Yield [no other] thread
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    1.86    1.36    6.24    0.33   68%  50% Resume [suspended low prio] thread
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    1.25    0.81    5.15    0.25   82%   1% Resume [runnable low prio] thread
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    2.01    1.63   10.04    0.32   70%  84% Suspend [runnable] thread
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    0.90    0.81    6.24    0.17   98%  98% Yield [only low prio] thread
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    1.25    0.81    5.15    0.24   84%   1% Suspend [runnable-&#62;not runnable]
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    2.92    1.90   18.72    0.57   85%  43% Kill [runnable] thread
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    2.45    1.90   10.31    0.33   95%  54% Destroy [dead] thread
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    3.95    2.71   23.60    0.89   68%  54% Destroy [runnable] thread
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    8.55    6.24   19.53    1.15   60%  23% Resume [high priority] thread
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    1.85    1.63   11.94    0.21   49%  49% Thread switch
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    0.25    0.00    1.63    0.05   89%  10% Scheduler lock
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    0.52    0.27    1.90    0.07   85%  13% Scheduler unlock [0 threads]
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    0.51    0.27    1.36    0.06   85%  13% Scheduler unlock [1 suspended]
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    0.51    0.27    1.36    0.06   85%  13% Scheduler unlock [many suspended]
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    0.51    0.27    1.63    0.06   85%  13% Scheduler unlock [many low prio]
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    0.58    0.27    3.53    0.20   71%  21% Init mutex
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    1.07    0.54    5.70    0.35   87%  59% Lock [unlocked] mutex
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    1.14    0.81    6.51    0.40   96%  81% Unlock [locked] mutex
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    0.96    0.54    5.15    0.34   68%  65% Trylock [unlocked] mutex
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    0.94    0.54    4.88    0.34   65%  65% Trylock [locked] mutex
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    0.33    0.27    2.17    0.11   96%  96% Destroy mutex
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    4.21    3.80   10.85    0.41   71%  96% Unlock/Lock mutex
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    0.76    0.54    4.07    0.25   96%  56% Create mbox
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    0.75    0.54    1.90    0.20   84%  50% Peek [empty] mbox
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    1.56    1.09    6.78    0.39   68%  59% Put [first] mbox
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    0.75    0.54    1.90    0.20   84%  50% Peek [1 msg] mbox
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    1.55    1.09    6.78    0.40   68%  62% Put [second] mbox
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    0.77    0.54    1.63    0.17   46%  37% Peek [2 msgs] mbox
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    1.67    1.09    6.24    0.31   87%  34% Get [first] mbox
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    1.63    1.09    6.24    0.31   75%  34% Get [second] mbox
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    1.50    1.09    6.51    0.40   56%  62% Tryput [first] mbox
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    1.58    1.09    5.43    0.37   68%  53% Peek item [non-empty] mbox
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    1.79    1.09    7.05    0.43   71%  25% Tryget [non-empty] mbox
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    1.29    1.09    5.15    0.32   87%  87% Peek item [empty] mbox
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    1.33    1.09    5.97    0.37   96%  84% Tryget [empty] mbox
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    0.73    0.54    1.90    0.21   84%  56% Waiting to get mbox
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    0.76    0.54    1.90    0.19   40%  43% Waiting to put mbox
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    1.47    1.09    6.78    0.39   59%  84% Delete mbox
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    2.70    2.17   12.75    0.63   96%  96% Put/Get mbox
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    0.47    0.27    2.71    0.20   96%  50% Init semaphore
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    0.89    0.54    4.88    0.33   56%  75% Post [0] semaphore
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    0.96    0.54    5.15    0.33   71%  75% Wait [1] semaphore
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    0.86    0.54    4.88    0.32   96%  81% Trywait [0] semaphore
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    0.69    0.54    3.26    0.22   96%  75% Trywait [1] semaphore
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    0.49    0.27    3.26    0.28   84%  84% Peek semaphore
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    0.39    0.27    2.44    0.19   96%  78% Destroy semaphore
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    2.83    2.44   11.66    0.55   96%  96% Post/Wait semaphore
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    0.52    0.27    3.26    0.20   56%  40% Create counter
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    0.59    0.00    2.71    0.34   81%  46% Get counter value
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    0.36    0.00    2.44    0.21   81%   9% Set counter value
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    1.13    0.81    2.98    0.26   59%  37% Tick counter
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    0.39    0.27    1.90    0.19   90%  78% Delete counter
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    0.86    0.54    4.07    0.24   65%  31% Create alarm
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    1.86    1.36    9.77    0.54   96%  90% Initialize alarm
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    0.77    0.54    2.71    0.23   84%  50% Disable alarm
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    1.86    1.36    9.22    0.51   96%  75% Enable alarm
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    0.89    0.54    3.26    0.25   65%  21% Delete alarm
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    0.99    0.81    3.26    0.21   96%  59% Tick counter [1 alarm]
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    4.22    4.07    6.78    0.22   96%  71% Tick counter [many alarms]
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    1.51    1.36    4.61    0.24   96%  78% Tick &#38; fire counter [1 alarm]
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   20.29   20.07   23.33    0.23   96%  53% Tick &#38; fire counters [&#62;1 together]
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    4.71    4.61    7.87    0.20   96%  96% Tick &#38; fire counters [&#62;1 separately]
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    2.88    2.71   23.87    0.33   99%  99% Alarm latency [0 threads]
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    3.24    2.71   17.36    0.40   79%  58% Alarm latency [2 threads]
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   15.71   12.48   27.40    1.47   53%  17% Alarm latency [many threads]
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    5.95    5.43   64.56    1.02   97%  97% Alarm -&#62; thread resume latency
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    3.25    0.81   14.11    0.00            Clock/interrupt latency
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    2.68    1.09   12.75    0.00            Clock DSR latency
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   29       0     316  (main stack:   764)  Thread stack used (1120 total)
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All done, main stack            : stack used   764 size  2400
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All done             :  Interrupt stack used   288 size  4096
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All done             : Idlethread stack used   260 size  2048
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Timing complete - 30280 ms total
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        </PRE
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>Board: Intel SA1110 (Assabet)</TD
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>Board: Motorola MBX</TD
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