doc/html/user-guide/rt-arm-ebsa285.html

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  12 >Board: Intel StrongARM EBSA-285 Evaluation Board</TITLE
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  65 >Appendix B. Real-time characterization</TD
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  85 NAME="RT-ARM-EBSA285">Board: Intel StrongARM EBSA-285 Evaluation Board</H1
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  93 CLASS="LITERALLAYOUT"
  94 >Board: Intel StrongARM EBSA-285 Evaluation Board
  95
  96 CPU   : Intel StrongARM SA-110 228MHz
  97
  98
  99 Startup, main stack             : stack used   404 size  2400
 100 Startup              :  Interrupt stack used   136 size  4096
 101 Startup              : Idlethread stack used    80 size  2048
 102
 103 eCos Kernel Timings
 104 Notes: all times are in microseconds (.000001) unless otherwise stated
 105
 106 Reading the hardware clock takes 1 'ticks' overhead
 107 ... this value will be factored out of all other measurements
 108 Clock interrupt took    4.61 microseconds (16 raw clock ticks)
 109
 110 Testing parameters:
 111    Clock samples:            32
 112    Threads:                  64
 113    Thread switches:         128
 114    Mutexes:                  32
 115    Mailboxes:                32
 116    Semaphores:               32
 117    Scheduler operations:    128
 118    Counters:                 32
 119    Alarms:                   32
 120
 121
 122                                  Confidence
 123      Ave     Min     Max     Var  Ave  Min  Function
 124   ======  ======  ======  ====== ========== ========
 125     4.97    3.26    7.34    0.60   50%   4% Create thread
 126     0.73    0.54    2.17    0.14   60%  37% Yield thread [all suspended]
 127     0.98    0.82    2.99    0.23   81%  68% Suspend [suspended] thread
 128     0.54    0.27    1.63    0.03   92%   6% Resume thread
 129     0.83    0.54    1.90    0.10   73%  14% Set priority
 130     0.21    0.00    0.54    0.21   25%  48% Get priority
 131     2.25    1.90   10.05    0.37   96%  67% Kill [suspended] thread
 132     0.70    0.54    1.09    0.14   53%  45% Yield [no other] thread
 133     0.96    0.82    1.36    0.14   50%  48% Resume [suspended low prio] thread
 134     0.53    0.27    0.82    0.03   92%   6% Resume [runnable low prio] thread
 135     0.90    0.82    1.63    0.13   70%  70% Suspend [runnable] thread
 136     0.70    0.54    0.82    0.13   57%  42% Yield [only low prio] thread
 137     0.55    0.54    0.82    0.01   98%  98% Suspend [runnable-&#62;not runnable]
 138     1.64    1.63    2.17    0.02   98%  98% Kill [runnable] thread
 139     0.97    0.82    4.62    0.20   98%  64% Destroy [dead] thread
 140     2.17    1.90    2.17    0.01   98%   1% Destroy [runnable] thread
 141     6.06    5.16   10.60    0.53   59%  31% Resume [high priority] thread
 142     1.69    1.63    5.98    0.11   90%  90% Thread switch
 143
 144     0.14    0.00    1.36    0.14   99%  50% Scheduler lock
 145     0.37    0.27    0.54    0.13   62%  62% Scheduler unlock [0 threads]
 146     0.38    0.27    0.54    0.13   60%  60% Scheduler unlock [1 suspended]
 147     0.37    0.27    0.54    0.13   63%  63% Scheduler unlock [many suspended]
 148     0.37    0.27    0.54    0.13   63%  63% Scheduler unlock [many low prio]
 149
 150     0.34    0.00    1.90    0.15   78%   6% Init mutex
 151     0.88    0.54    4.62    0.37   93%  71% Lock [unlocked] mutex
 152     0.79    0.54    4.35    0.26   93%  53% Unlock [locked] mutex
 153     0.59    0.27    2.17    0.10   93%   3% Trylock [unlocked] mutex
 154     0.50    0.27    0.82    0.09   78%  18% Trylock [locked] mutex
 155     0.18    0.00    0.54    0.13   59%  37% Destroy mutex
 156     3.85    3.80    5.16    0.08   96%  96% Unlock/Lock mutex
 157
 158     0.64    0.27    3.53    0.24   81%  15% Create mbox
 159     0.61    0.27    2.17    0.21   68%  18% Peek [empty] mbox
 160     0.87    0.54    5.16    0.31   59%  87% Put [first] mbox
 161     0.08    0.00    0.54    0.12   71%  71% Peek [1 msg] mbox
 162     0.71    0.54    1.09    0.14   56%  40% Put [second] mbox
 163     0.08    0.00    0.27    0.12   68%  68% Peek [2 msgs] mbox
 164     0.89    0.54    4.89    0.31   62%  81% Get [first] mbox
 165     0.76    0.54    1.09    0.17   43%  37% Get [second] mbox
 166     0.76    0.54    3.26    0.21   96%  50% Tryput [first] mbox
 167     0.65    0.54    2.45    0.17   81%  81% Peek item [non-empty] mbox
 168     0.76    0.54    2.72    0.19   53%  43% Tryget [non-empty] mbox
 169     0.58    0.54    0.82    0.06   87%  87% Peek item [empty] mbox
 170     0.61    0.54    0.82    0.10   75%  75% Tryget [empty] mbox
 171     0.10    0.00    0.54    0.13   65%  65% Waiting to get mbox
 172     0.10    0.00    0.54    0.13   65%  65% Waiting to put mbox
 173     0.77    0.54    3.26    0.20   53%  43% Delete mbox
 174     2.10    1.90    6.25    0.30   93%  93% Put/Get mbox
 175
 176     0.34    0.27    1.09    0.11   81%  81% Init semaphore
 177     0.60    0.27    1.09    0.12   68%   6% Post [0] semaphore
 178     0.59    0.54    0.82    0.08   81%  81% Wait [1] semaphore
 179     0.59    0.54    2.17    0.10   96%  96% Trywait [0] semaphore
 180     0.48    0.27    0.82    0.11   71%  25% Trywait [1] semaphore
 181     0.24    0.00    0.82    0.09   78%  18% Peek semaphore
 182     0.19    0.00    0.54    0.13   62%  34% Destroy semaphore
 183     2.28    2.17    4.08    0.18   93%  90% Post/Wait semaphore
 184
 185     0.43    0.00    2.72    0.23   90%   6% Create counter
 186     0.40    0.00    1.63    0.25   68%  28% Get counter value
 187     0.13    0.00    0.82    0.15   96%  59% Set counter value
 188     0.71    0.54    1.63    0.16   50%  46% Tick counter
 189     0.16    0.00    0.54    0.14   53%  43% Delete counter
 190
 191     0.47    0.27    1.36    0.15   59%  37% Create alarm
 192     1.58    1.09    7.07    0.44   71%  68% Initialize alarm
 193     0.12    0.00    1.09    0.16   96%  65% Disable alarm
 194     1.01    0.82    2.45    0.17   53%  43% Enable alarm
 195     0.21    0.00    0.27    0.09   78%  21% Delete alarm
 196     0.78    0.54    1.90    0.12   71%  25% Tick counter [1 alarm]
 197     3.90    3.80    4.35    0.13   68%  68% Tick counter [many alarms]
 198     1.25    1.09    1.63    0.14   53%  43% Tick &#38; fire counter [1 alarm]
 199    19.88   19.84   20.11    0.07   84%  84% Tick &#38; fire counters [&#62;1 together]
 200     4.37    4.35    4.62    0.05   90%  90% Tick &#38; fire counters [&#62;1 separately]
 201     3.83    3.80    7.61    0.06   99%  99% Alarm latency [0 threads]
 202     4.46    3.80    7.88    0.27   71%  24% Alarm latency [2 threads]
 203    16.06   13.59   26.36    1.05   54%  10% Alarm latency [many threads]
 204     6.67    6.52   22.83    0.29   98%  98% Alarm -&#62; thread resume latency
 205
 206     1.89    0.82    9.78    0.00            Clock/interrupt latency
 207
 208     2.17    1.09    7.34    0.00            Clock DSR latency
 209
 210    11       0     316  (main stack:   744)  Thread stack used (1120 total)
 211 All done, main stack            : stack used   744 size  2400
 212 All done             :  Interrupt stack used   288 size  4096
 213 All done             : Idlethread stack used   268 size  2048
 214
 215 Timing complete - 30210 ms total
 216
 217 PASS:&lt;Basic timing OK&#62;
 218 EXIT:&lt;done&#62;
 219         </PRE
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