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phoenix |
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<HTML
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><HEAD
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><TITLE
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>Board: PC</TITLE
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"><LINK
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REL="HOME"
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TITLE="eCos User Guide"
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HREF="ecos-user-guide.html"><LINK
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REL="UP"
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TITLE="Real-time characterization"
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HREF="real-time-characterization.html"><LINK
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REL="PREVIOUS"
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TITLE="Board: NEC V850 Cosmo Evaluation Board"
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>eCos User Guide</TH
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><TR
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Appendix B. Real-time characterization</TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><H1
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CLASS="SECT1"
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><A
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NAME="RT-I386-PC">Board: PC</H1
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><TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="LITERALLAYOUT"
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>Board: PC
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CPU: 433MHz Celeron
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Startup, main stack : stack used 124 size 2912
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Startup : Interrupt stack used 280 size 4108
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Startup : Idlethread stack used 62 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 8 'ticks' overhead
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... this value will be factored out of all other measurements
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Clock interrupt took 6.75 microseconds (8 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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3.93 1.68 8.38 0.93 68% 3% Create thread
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0.71 0.00 3.35 0.84 59% 59% Yield thread [all suspended]
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0.65 0.00 5.03 0.84 64% 64% Suspend [suspended] thread
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0.63 0.00 1.68 0.79 62% 62% Resume thread
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0.76 0.00 1.68 0.83 54% 54% Set priority
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0.39 0.00 1.68 0.60 76% 76% Get priority
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1.34 0.00 6.70 0.67 73% 25% Kill [suspended] thread
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0.68 0.00 1.68 0.81 59% 59% Yield [no other] thread
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0.92 0.00 1.68 0.83 54% 45% Resume [suspended low prio] thread
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0.63 0.00 1.68 0.79 62% 62% Resume [runnable low prio] thread
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0.84 0.00 1.68 0.84 100% 50% Suspend [runnable] thread
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0.73 0.00 1.68 0.82 56% 56% Yield [only low prio] thread
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0.58 0.00 1.68 0.76 65% 65% Suspend [runnable->not runnable]
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1.26 0.00 3.35 0.67 71% 26% Kill [runnable] thread
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0.86 0.00 3.35 0.86 98% 50% Destroy [dead] thread
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1.44 0.00 1.68 0.40 85% 14% Destroy [runnable] thread
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4.45 3.35 6.70 0.89 53% 40% Resume [high priority] thread
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1.62 0.00 1.68 0.10 96% 3% Thread switch
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0.41 0.00 1.68 0.61 75% 75% Scheduler lock
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0.48 0.00 1.68 0.69 71% 71% Scheduler unlock [0 threads]
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0.59 0.00 1.68 0.76 64% 64% Scheduler unlock [1 suspended]
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0.45 0.00 1.68 0.65 73% 73% Scheduler unlock [many suspended]
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0.45 0.00 1.68 0.65 73% 73% Scheduler unlock [many low prio]
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0.52 0.00 1.68 0.72 68% 68% Init mutex
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0.79 0.00 5.03 0.93 96% 59% Lock [unlocked] mutex
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0.84 0.00 5.03 0.94 96% 56% Unlock [locked] mutex
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0.63 0.00 1.68 0.79 62% 62% Trylock [unlocked] mutex
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0.52 0.00 1.68 0.72 68% 68% Trylock [locked] mutex
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0.58 0.00 1.68 0.76 65% 65% Destroy mutex
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3.40 3.35 5.03 0.10 96% 96% Unlock/Lock mutex
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0.99 0.00 1.68 0.81 59% 40% Create mbox
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0.47 0.00 1.68 0.68 71% 71% Peek [empty] mbox
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0.79 0.00 5.03 0.93 96% 59% Put [first] mbox
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0.42 0.00 1.68 0.63 75% 75% Peek [1 msg] mbox
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0.79 0.00 1.68 0.83 53% 53% Put [second] mbox
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0.37 0.00 1.68 0.57 78% 78% Peek [2 msgs] mbox
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0.73 0.00 3.35 0.87 59% 59% Get [first] mbox
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0.73 0.00 1.68 0.82 56% 56% Get [second] mbox
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0.79 0.00 3.35 0.88 56% 56% Tryput [first] mbox
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0.68 0.00 3.35 0.85 62% 62% Peek item [non-empty] mbox
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0.73 0.00 3.35 0.87 59% 59% Tryget [non-empty] mbox
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0.63 0.00 1.68 0.79 62% 62% Peek item [empty] mbox
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0.68 0.00 1.68 0.81 59% 59% Tryget [empty] mbox
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0.26 0.00 1.68 0.44 84% 84% Waiting to get mbox
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0.63 0.00 1.68 0.79 62% 62% Waiting to put mbox
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0.73 0.00 3.35 0.87 59% 59% Delete mbox
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3.25 1.68 3.35 0.20 93% 6% Put/Get mbox
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0.63 0.00 1.68 0.79 62% 62% Init semaphore
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0.63 0.00 1.68 0.79 62% 62% Post [0] semaphore
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0.63 0.00 1.68 0.79 62% 62% Wait [1] semaphore
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0.52 0.00 1.68 0.72 68% 68% Trywait [0] semaphore
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0.52 0.00 1.68 0.72 68% 68% Trywait [1] semaphore
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0.52 0.00 1.68 0.72 68% 68% Peek semaphore
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0.21 0.00 1.68 0.37 87% 87% Destroy semaphore
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3.30 1.68 3.35 0.10 96% 3% Post/Wait semaphore
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0.79 0.00 3.35 0.88 56% 56% Create counter
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0.42 0.00 1.68 0.63 75% 75% Get counter value
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0.37 0.00 1.68 0.57 78% 78% Set counter value
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0.73 0.00 1.68 0.82 56% 56% Tick counter
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0.63 0.00 1.68 0.79 62% 62% Delete counter
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0.89 0.00 3.35 0.89 96% 50% Create alarm
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0.84 0.00 1.68 0.84 100% 50% Initialize alarm
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0.52 0.00 1.68 0.72 68% 68% Disable alarm
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0.89 0.00 3.35 0.89 96% 50% Enable alarm
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0.58 0.00 1.68 0.76 65% 65% Delete alarm
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0.63 0.00 1.68 0.79 62% 62% Tick counter [1 alarm]
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5.03 3.35 6.70 0.10 93% 3% Tick counter [many alarms]
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0.94 0.00 1.68 0.82 56% 43% Tick & fire counter [1 alarm]
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11.16 10.06 11.73 0.76 65% 34% Tick & fire counters [>1 together]
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5.19 5.03 6.70 0.28 90% 90% Tick & fire counters [>1 separately]
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0.01 0.00 1.68 0.03 99% 99% Alarm latency [0 threads]
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0.13 0.00 1.68 0.24 92% 92% Alarm latency [2 threads]
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0.94 0.00 3.35 0.85 53% 45% Alarm latency [many threads]
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1.75 1.68 6.70 0.15 96% 96% Alarm -> thread resume latency
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41 0 368 (main stack: 1036) Thread stack used (1712 total)
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All done, main stack : stack used 1036 size 2912
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All done : Interrupt stack used 368 size 4108
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All done : Idlethread stack used 288 size 2048
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Timing complete - 28520 ms total
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PASS:<Basic timing OK>
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EXIT:<done> </PRE
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>Board: Hitachi Solution Engine 7751 SH4 (se7751)</TD
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>Board: NEC V850 Cosmo Evaluation Board</TD
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