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+>Board: Intel IQ80310 XScale Development Kit</TITLE
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+>Appendix B. Real-time characterization</TD
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+><A
+NAME="RT-ARM-IQ80310">Board: Intel IQ80310 XScale Development Kit</H1
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+><PRE
+CLASS="LITERALLAYOUT"
+>Board: Intel IQ80310 XScale Development Kit
+
+CPU: Intel XScale 600MHz
+
+
+Startup, main stack : stack used 388 size 2400
+Startup : Interrupt stack used 148 size 4096
+Startup : Idlethread stack used 76 size 1120
+
+eCos Kernel Timings
+Notes: all times are in microseconds (.000001) unless otherwise stated
+
+Reading the hardware clock takes 73 'ticks' overhead
+... this value will be factored out of all other measurements
+Clock interrupt took 12.11 microseconds (399 raw clock ticks)
+
+Testing parameters:
+ Clock samples: 32
+ Threads: 64
+ Thread switches: 128
+ Mutexes: 32
+ Mailboxes: 32
+ Semaphores: 32
+ Scheduler operations: 128
+ Counters: 32
+ Alarms: 32
+
+
+ Confidence
+ Ave Min Max Var Ave Min Function
+ ====== ====== ====== ====== ========== ========
+ 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]
+ 0.24 0.00 2.06 0.12 87% 1% Suspend [suspended] thread
+ 0.25 0.00 0.73 0.06 71% 1% Resume thread
+ 0.36 0.09 0.82 0.10 89% 1% Set 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
+ 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
+ 0.28 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
+ 0.31 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->not runnable]
+ 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
+ 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
+ 0.87 0.36 1.39 0.07 86% 0% Thread switch
+
+ 0.15 0.00 1.39 0.21 81% 81% Scheduler lock
+ 0.16 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 0.70 0.08 78% 6% Scheduler unlock [many suspended]
+ 0.16 0.00 0.64 0.07 81% 4% Scheduler unlock [many low prio]
+
+ 0.45 0.00 1.39 0.34 56% 46% Init mutex
+ 0.43 0.18 3.27 0.23 87% 87% Lock [unlocked] mutex
+ 0.48 0.09 3.88 0.26 84% 71% Unlock [locked] mutex
+ 0.35 0.21 2.24 0.21 87% 84% Trylock [unlocked] mutex
+ 0.26 0.00 0.67 0.13 78% 9% Trylock [locked] 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
+
+ 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
+ 0.47 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
+ 0.29 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
+ 0.48 0.21 3.67 0.26 84% 87% Get [first] mbox
+ 0.35 0.09 0.82 0.11 75% 3% Get [second] mbox
+ 0.50 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
+ 0.43 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 0.21 0.58 0.05 71% 65% Tryget [empty] mbox
+ 0.01 0.00 0.36 0.02 96% 90% Waiting to get mbox
+ 0.05 0.00 0.45 0.09 87% 84% Waiting to put mbox
+ 0.42 0.09 2.88 0.20 84% 12% Delete mbox
+ 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
+ 0.19 0.00 0.45 0.04 81% 3% Post [0] semaphore
+ 0.25 0.21 0.88 0.06 84% 81% Wait [1] semaphore
+ 0.32 0.06 1.79 0.21 78% 68% Trywait [0] semaphore
+ 0.20 0.00 0.52 0.06 62% 3% Trywait [1] semaphore
+ 0.07 0.00 0.45 0.10 84% 81% Peek 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
+
+ 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
+ 0.02 0.00 0.45 0.04 93% 93% Set counter value
+ 0.38 0.12 0.58 0.06 59% 3% Tick counter
+ 0.03 0.00 0.48 0.05 93% 78% Delete counter
+
+ 1.10 0.39 4.30 0.47 62% 53% Create alarm
+ 0.58 0.03 3.12 0.18 87% 3% Initialize alarm
+ 0.04 0.00 0.42 0.07 90% 90% Disable 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
+ 0.50 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]
+ 0.82 0.64 1.36 0.11 78% 43% Tick & fire counter [1 alarm]
+ 14.13 13.85 14.55 0.09 78% 3% Tick & fire counters [>1 together]
+ 5.56 5.45 6.00 0.09 78% 71% Tick & fire counters [>1 separately]
+ 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]
+ 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 -> thread resume latency
+
+ 1.87 1.82 10.42 0.00 Clock/interrupt latency
+
+ 3.02 2.58 7.67 0.00 Clock DSR latency
+
+ 9 0 260 (main stack: 776) Thread stack used (1120 total)
+All done, main stack : stack used 776 size 2400
+All done : Interrupt stack used 268 size 4096
+All done : Idlethread stack used 244 size 1120
+
+Timing complete - 30300 ms total
+
+PASS:<Basic timing OK>
+EXIT:<done>
+
+ </PRE
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