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<HTML
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><HEAD
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><TITLE
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>Board: Hitachi HS7729PCI HS7729 SH3</TITLE
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TITLE="Board: Hitachi Solution Engine 7751 SH4 (se7751)"
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>eCos User Guide</TH
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WIDTH="80%"
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VALIGN="bottom"
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>Appendix B. Real-time characterization</TD
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CLASS="SECT1"
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><A
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NAME="RT-SH-HS7729PCI">Board: Hitachi HS7729PCI HS7729 SH3</H1
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><PRE
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CLASS="LITERALLAYOUT"
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> Board: Hitachi HS7729PCI HS7729 SH3
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CPU: Hitachi SH3/7729 132MHz
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Startup, main stack : stack used 464 size 4112
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Startup : Interrupt stack used 92 size 4096
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Startup : Idlethread stack used 94 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 3 'ticks' overhead
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... this value will be factored out of all other measurements
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Clock interrupt took 18.10 microseconds (149 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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18.33 15.52 28.24 1.47 53% 28% Create thread
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3.08 2.91 6.79 0.13 78% 89% Yield thread [all suspended]
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3.23 3.03 6.18 0.16 59% 70% Suspend [suspended] thread
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2.70 2.55 6.18 0.15 54% 82% Resume thread
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4.12 4.00 7.52 0.16 96% 81% Set priority
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0.61 0.48 1.33 0.07 57% 28% Get priority
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9.14 8.61 18.91 0.42 85% 57% Kill [suspended] thread
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3.04 2.91 4.48 0.07 68% 20% Yield [no other] thread
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5.12 4.73 7.88 0.29 60% 53% Resume [suspended low prio] thread
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2.54 2.42 3.03 0.09 39% 40% Resume [runnable low prio] thread
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5.00 4.36 9.45 0.21 75% 1% Suspend [runnable] thread
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3.04 2.91 4.61 0.07 65% 21% Yield [only low prio] thread
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2.91 2.79 3.27 0.08 43% 31% Suspend [runnable->not runnable]
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8.82 8.12 15.39 0.36 68% 29% Kill [runnable] thread
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5.07 4.48 12.73 0.37 76% 50% Destroy [dead] thread
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11.17 10.55 22.91 0.52 78% 67% Destroy [runnable] thread
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22.43 21.45 32.73 0.61 81% 50% Resume [high priority] thread
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7.99 7.88 13.58 0.14 98% 86% Thread switch
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0.37 0.36 1.33 0.02 97% 97% Scheduler lock
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1.74 1.70 2.06 0.06 70% 70% Scheduler unlock [0 threads]
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1.75 1.70 2.06 0.07 92% 64% Scheduler unlock [1 suspended]
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1.71 1.70 2.42 0.03 89% 89% Scheduler unlock [many suspended]
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1.76 1.70 3.64 0.08 96% 64% Scheduler unlock [many low prio]
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4.23 3.88 10.67 0.41 96% 93% Unlock [locked] mutex
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3.12 2.91 6.91 0.29 96% 87% Trylock [unlocked] mutex
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2.54 2.42 2.91 0.11 18% 46% Trylock [locked] mutex
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0.88 0.73 3.15 0.14 65% 96% Destroy mutex
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22.33 22.06 25.94 0.23 81% 62% Unlock/Lock mutex
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1.92 1.82 4.73 0.19 96% 93% Create mbox
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0.61 0.48 1.70 0.15 84% 75% Peek [empty] mbox
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4.00 3.64 9.45 0.36 96% 87% Put [first] mbox
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0.30 0.24 0.73 0.09 84% 75% Peek [1 msg] mbox
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3.82 3.64 6.67 0.22 90% 84% Put [second] mbox
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0.32 0.24 1.33 0.12 81% 81% Peek [2 msgs] mbox
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4.19 3.76 9.21 0.34 84% 50% Get [first] mbox
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3.91 3.76 5.21 0.16 84% 75% Get [second] mbox
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3.51 3.27 8.12 0.34 93% 87% Tryput [first] mbox
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3.25 2.91 7.15 0.30 62% 56% Peek item [non-empty] mbox
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3.86 3.52 8.73 0.37 93% 84% Tryget [non-empty] mbox
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2.87 2.79 3.76 0.12 84% 71% Peek item [empty] mbox
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3.15 3.03 4.24 0.10 46% 40% Tryget [empty] mbox
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0.34 0.24 1.33 0.10 43% 46% Waiting to get mbox
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0.36 0.24 1.45 0.09 53% 37% Waiting to put mbox
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4.49 4.24 10.91 0.41 96% 96% Delete mbox
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12.67 12.36 19.52 0.43 96% 96% Put/Get mbox
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0.87 0.85 1.45 0.05 93% 93% Init semaphore
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2.74 2.55 4.48 0.18 50% 50% Post [0] semaphore
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3.39 3.15 4.24 0.14 78% 50% Wait [1] semaphore
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2.62 2.42 5.33 0.21 96% 65% Trywait [0] semaphore
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2.76 2.67 3.27 0.08 46% 43% Trywait [1] semaphore
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1.09 0.85 2.91 0.19 68% 56% Peek semaphore
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0.97 0.73 3.39 0.17 90% 65% Destroy semaphore
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13.09 12.85 16.12 0.19 84% 65% Post/Wait semaphore
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1.57 1.45 3.88 0.15 96% 93% Create counter
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0.91 0.73 2.18 0.16 46% 68% Get counter value
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0.55 0.48 0.97 0.09 90% 62% Set counter value
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4.19 4.00 5.82 0.13 84% 75% Tick counter
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0.87 0.73 3.15 0.16 93% 93% Delete counter
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2.50 2.30 5.21 0.18 81% 90% Create alarm
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6.16 5.70 12.97 0.47 96% 71% Initialize alarm
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0.50 0.36 1.70 0.11 62% 34% Disable alarm
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5.16 4.85 8.73 0.29 78% 78% Enable alarm
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1.18 1.09 2.30 0.12 84% 65% Delete alarm
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5.22 5.09 7.39 0.14 96% 93% Tick counter [1 alarm]
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52.37 52.12 52.73 0.20 37% 56% Tick counter [many alarms]
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6.73 6.55 8.24 0.13 78% 68% Tick & fire counter [1 alarm]
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108.65 108.61 109.21 0.07 87% 87% Tick & fire counters [>1 together]
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54.25 54.06 54.79 0.11 65% 18% Tick & fire counters [>1 separately]
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17.36 17.09 29.82 0.23 82% 57% Alarm latency [0 threads]
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19.75 17.09 28.00 1.65 46% 40% Alarm latency [2 threads]
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39.02 34.06 50.67 2.00 53% 15% Alarm latency [many threads]
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29.31 28.36 105.09 1.27 98% 97% Alarm -> thread resume latency
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5.08 3.88 11.15 0.00 Clock/interrupt latency
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7.32 5.09 16.73 0.00 Clock DSR latency
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6 0 380 (main stack: 820) Thread stack used (992 total)
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All done, main stack : stack used 820 size 4112
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All done : Interrupt stack used 196 size 4096
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All done : Idlethread stack used 360 size 2048
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Timing complete - 29960 ms total
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PASS:<Basic timing OK>
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EXIT:<done> </PRE
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