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  12 >Board: Cogent CMA MPC860 (PowerPC) Evaluation </TITLE
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  65 >Appendix B. Real-time characterization</TD
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  85 NAME="RT-PPC-COGENT">Board: Cogent CMA MPC860 (PowerPC) Evaluation</H1
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  92 ><PRE
  93 CLASS="LITERALLAYOUT"
  94 >Board: Cogent CMA MPC860 (PowerPC) Evaluation
  95 CPU  : MPC860, revision A3 33MHz
  96
  97
  98 eCOS Kernel Timings
  99 Note: all times are in microseconds (.000001) unless otherwise stated
 100
 101 Reading the hardware clock takes 0 'ticks' overhead
 102 ... this value will be factored out of all other measurements
 103 Clock interrupt took   14.46 microseconds (30 raw clock ticks)
 104
 105 Testing parameters:
 106    Clock samples:          32
 107    Threads:                24
 108    Thread switches:       128
 109    Mutexes:                32
 110    Mailboxes:              32
 111    Semaphores:             32
 112    Scheduler operations:  128
 113    Counters:               32
 114    Alarms:                 32
 115
 116
 117
 118
 119
 120                                  Confidence
 121      Ave     Min     Max     Var  Ave  Min  Function
 122   ======  ======  ======  ====== ========== ========
 123    26.78   23.52   41.76    1.97   66%  37% Create thread
 124     4.00    3.84    4.80    0.23   70%  70% Yield thread [all suspended]
 125     3.78    3.36    7.68    0.38   50%  45% Suspend [suspended] thread
 126     3.56    3.36    7.68    0.37   95%  91% Resume thread
 127     5.28    4.32   12.96    0.76   83%  66% Set priority
 128     0.84    0.48    3.84    0.39   91%  54% Get priority
 129    11.76   10.08   32.16    1.70   95%  95% Kill [suspended] thread
 130     4.14    3.84    8.64    0.45   95%  75% Yield [no other] thread
 131     7.14    5.76   17.76    1.07   79%  70% Resume [suspended low prio] thread
 132     3.60    3.36    8.16    0.42   95%  87% Resume [runnable low prio] thread
 133     6.10    5.28   14.88    0.80   62%  70% Suspend [runnable] thread
 134     4.00    3.84    5.76    0.25   79%  79% Yield [only low prio] thread
 135     3.66    3.36    8.64    0.47   95%  79% Suspend [runnable-&#62;not runnable]
 136    11.66   10.08   30.24    1.58   79%  91% Kill [runnable] thread
 137    31.12   27.84   53.28    2.35   87%  50% Resume [high priority] thread
 138     7.52    7.20   15.84    0.30   50%  48% Thread switch
 139
 140     1.00    0.48    2.88    0.21   63%  14% Scheduler lock
 141     2.57    2.40    3.84    0.23   65%  65% Scheduler unlock [0 threads]
 142     2.58    2.40    4.32    0.23   64%  64% Scheduler unlock [1 suspended]
 143     2.59    2.40    4.32    0.24   62%  62% Scheduler unlock [many suspended]
 144     2.59    2.40    4.32    0.24   61%  61% Scheduler unlock [many low prio]
 145
 146     1.69    1.44    5.76    0.37   96%  71% Init mutex
 147     4.15    3.84   10.56    0.47   96%  75% Lock [unlocked] mutex
 148     5.82    5.28   10.56    0.38   62%  28% Unlock [locked] mutex
 149     3.70    3.36    8.64    0.41   96%  59% Trylock [unlocked] mutex
 150     3.42    2.88    6.72    0.26   75%  15% Trylock [locked] mutex
 151     0.36    0.00    1.92    0.25   62%  34% Destroy mutex
 152    43.41   42.72   45.12    0.34   81%   3% Unlock/Lock mutex
 153
 154     3.27    2.88    8.16    0.39   96%  50% Create mbox
 155     0.57    0.00    2.40    0.34   50%  21% Peek [empty] mbox
 156     6.16    5.76   11.04    0.48   87%  87% Put [first] mbox
 157     0.48    0.00    1.92    0.27   50%  28% Peek [1 msg] mbox
 158     5.92    5.28   10.56    0.35   90%   6% Put [second] mbox
 159     0.60    0.00    2.40    0.30   62%  12% Peek [2 msgs] mbox
 160     4.69    4.32   12.00    0.54   93%  93% Get [first] mbox
 161     4.68    4.32   11.52    0.52   93%  93% Get [second] mbox
 162     5.86    5.28   11.04    0.47   62%  31% Tryput [first] mbox
 163     4.00    3.36    9.12    0.38   87%   9% Peek item [non-empty] mbox
 164     4.59    3.84   12.48    0.61   71%  75% Tryget [non-empty] mbox
 165     3.75    3.36    7.68    0.34   53%  43% Peek item [empty] mbox
 166     3.93    3.36    9.60    0.45   65%  31% Tryget [empty] mbox
 167     0.63    0.00    2.40    0.28   68%   6% Waiting to get mbox
 168     0.54    0.00    1.92    0.19   75%   9% Waiting to put mbox
 169     4.84    4.32   12.00    0.47   56%  40% Delete mbox
 170    24.18   23.52   29.76    0.66   81%  75% Put/Get mbox
 171
 172     1.72    0.96    3.84    0.33   90%   6% Init semaphore
 173     3.15    2.88    6.24    0.34   96%  62% Post [0] semaphore
 174     3.85    3.36    8.64    0.30   68%  28% Wait [1] semaphore
 175     3.24    2.88    6.24    0.34   46%  46% Trywait [0] semaphore
 176     3.22    2.88    6.24    0.32   50%  46% Trywait [1] semaphore
 177     0.96    0.48    2.88    0.12   84%  12% Peek semaphore
 178     0.99    0.96    1.92    0.06   96%  96% Destroy semaphore
 179    24.71   24.00   28.80    0.40   87%   6% Post/Wait semaphore
 180
 181     2.31    1.44    6.24    0.77   46%  56% Create counter
 182     0.45    0.00    0.96    0.08   87%   9% Get counter value
 183     0.42    0.00    0.96    0.16   75%  18% Set counter value
 184     4.14    3.84    4.80    0.26   50%  43% Tick counter
 185     0.91    0.48    2.40    0.19   71%  21% Delete counter
 186
 187     5.23    4.32    7.68    0.61   65%  53% Create alarm
 188     5.58    4.80   12.96    0.72   68%  84% Initialize alarm
 189     0.75    0.48    1.92    0.30   90%  56% Disable alarm
 190     8.02    7.20   14.40    0.53   84%  68% Enable alarm
 191     1.32    0.96    3.84    0.29   56%  40% Delete alarm
 192     4.63    4.32    6.24    0.28   53%  43% Tick counter [1 alarm]
 193    23.67   23.52   25.44    0.23   78%  78% Tick counter [many alarms]
 194     7.24    6.72   10.56    0.21   84%  12% Tick &#38; fire counter [1 alarm]
 195   106.83  106.56  110.40    0.35   96%  65% Tick &#38; fire counters [&#62;1 together]
 196    26.18   25.44   29.76    0.46   81%   9% Tick &#38; fire counters [&#62;1 separately]
 197    10.79   10.08   29.28    0.66   53%  55% Alarm latency [0 threads]
 198    17.20   13.92   35.52    1.48   67%  21% Alarm latency [2 threads]
 199    29.69   22.56   47.04    3.58   57%  17% Alarm latency [many threads]
 200
 201     7.66    3.84   19.20    0.00            Clock/interrupt latency
 202
 203 Timing complete - 23530 ms total
 204
 205 PASS:&lt;Basic timing OK&#62;
 206 EXIT:&lt;done&#62;
 207
 208         </PRE
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