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<!-- Copyright (C) 2003 Red Hat, Inc. --><!-- This material may be distributed only subject to the terms --><!-- and conditions set forth in the Open Publication License, v1.0 --><!-- or later (the latest version is presently available at --><!-- http://www.opencontent.org/openpub/). --><!-- Distribution of the work or derivative of the work in any --><!-- standard (paper) book form is prohibited unless prior --><!-- permission is obtained from the copyright holder. --><HTML><HEAD><TITLE>Board: Cogent CMA MPC860 (PowerPC) Evaluation </TITLE><meta name="MSSmartTagsPreventParsing" content="TRUE"><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="eCos User Guide"HREF="ecos-user-guide.html"><LINKREL="UP"TITLE="Real-time characterization"HREF="real-time-characterization.html"><LINKREL="PREVIOUS"TITLE="Board: Fujitsu SPARClite Evaluation Board"HREF="rt-sparclite-sleb.html"><LINKREL="NEXT"TITLE="Board: NEC VR4373"HREF="rt-vr4300-vrc4373.html"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">eCos User Guide</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="rt-sparclite-sleb.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Appendix B. Real-time characterization</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="rt-vr4300-vrc4373.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="RT-PPC-COGENT">Board: Cogent CMA MPC860 (PowerPC) Evaluation</H1><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="LITERALLAYOUT">Board: Cogent CMA MPC860 (PowerPC) Evaluation CPU : MPC860, revision A3 33MHzeCOS Kernel TimingsNote: all times are in microseconds (.000001) unless otherwise statedReading the hardware clock takes 0 'ticks' overhead... this value will be factored out of all other measurementsClock interrupt took 14.46 microseconds (30 raw clock ticks)Testing parameters: Clock samples: 32 Threads: 24 Thread switches: 128 Mutexes: 32 Mailboxes: 32 Semaphores: 32 Scheduler operations: 128 Counters: 32 Alarms: 32 Confidence Ave Min Max Var Ave Min Function ====== ====== ====== ====== ========== ======== 26.78 23.52 41.76 1.97 66% 37% Create thread 4.00 3.84 4.80 0.23 70% 70% Yield thread [all suspended] 3.78 3.36 7.68 0.38 50% 45% Suspend [suspended] thread 3.56 3.36 7.68 0.37 95% 91% Resume thread 5.28 4.32 12.96 0.76 83% 66% Set priority 0.84 0.48 3.84 0.39 91% 54% Get priority 11.76 10.08 32.16 1.70 95% 95% Kill [suspended] thread 4.14 3.84 8.64 0.45 95% 75% Yield [no other] thread 7.14 5.76 17.76 1.07 79% 70% Resume [suspended low prio] thread 3.60 3.36 8.16 0.42 95% 87% Resume [runnable low prio] thread 6.10 5.28 14.88 0.80 62% 70% Suspend [runnable] thread 4.00 3.84 5.76 0.25 79% 79% Yield [only low prio] thread 3.66 3.36 8.64 0.47 95% 79% Suspend [runnable->not runnable] 11.66 10.08 30.24 1.58 79% 91% Kill [runnable] thread 31.12 27.84 53.28 2.35 87% 50% Resume [high priority] thread 7.52 7.20 15.84 0.30 50% 48% Thread switch 1.00 0.48 2.88 0.21 63% 14% Scheduler lock 2.57 2.40 3.84 0.23 65% 65% Scheduler unlock [0 threads] 2.58 2.40 4.32 0.23 64% 64% Scheduler unlock [1 suspended] 2.59 2.40 4.32 0.24 62% 62% Scheduler unlock [many suspended] 2.59 2.40 4.32 0.24 61% 61% Scheduler unlock [many low prio] 1.69 1.44 5.76 0.37 96% 71% Init mutex 4.15 3.84 10.56 0.47 96% 75% Lock [unlocked] mutex 5.82 5.28 10.56 0.38 62% 28% Unlock [locked] mutex 3.70 3.36 8.64 0.41 96% 59% Trylock [unlocked] mutex 3.42 2.88 6.72 0.26 75% 15% Trylock [locked] mutex 0.36 0.00 1.92 0.25 62% 34% Destroy mutex 43.41 42.72 45.12 0.34 81% 3% Unlock/Lock mutex 3.27 2.88 8.16 0.39 96% 50% Create mbox 0.57 0.00 2.40 0.34 50% 21% Peek [empty] mbox 6.16 5.76 11.04 0.48 87% 87% Put [first] mbox 0.48 0.00 1.92 0.27 50% 28% Peek [1 msg] mbox 5.92 5.28 10.56 0.35 90% 6% Put [second] mbox 0.60 0.00 2.40 0.30 62% 12% Peek [2 msgs] mbox 4.69 4.32 12.00 0.54 93% 93% Get [first] mbox 4.68 4.32 11.52 0.52 93% 93% Get [second] mbox 5.86 5.28 11.04 0.47 62% 31% Tryput [first] mbox 4.00 3.36 9.12 0.38 87% 9% Peek item [non-empty] mbox 4.59 3.84 12.48 0.61 71% 75% Tryget [non-empty] mbox 3.75 3.36 7.68 0.34 53% 43% Peek item [empty] mbox 3.93 3.36 9.60 0.45 65% 31% Tryget [empty] mbox 0.63 0.00 2.40 0.28 68% 6% Waiting to get mbox 0.54 0.00 1.92 0.19 75% 9% Waiting to put mbox 4.84 4.32 12.00 0.47 56% 40% Delete mbox 24.18 23.52 29.76 0.66 81% 75% Put/Get mbox 1.72 0.96 3.84 0.33 90% 6% Init semaphore 3.15 2.88 6.24 0.34 96% 62% Post [0] semaphore 3.85 3.36 8.64 0.30 68% 28% Wait [1] semaphore 3.24 2.88 6.24 0.34 46% 46% Trywait [0] semaphore 3.22 2.88 6.24 0.32 50% 46% Trywait [1] semaphore 0.96 0.48 2.88 0.12 84% 12% Peek semaphore 0.99 0.96 1.92 0.06 96% 96% Destroy semaphore 24.71 24.00 28.80 0.40 87% 6% Post/Wait semaphore 2.31 1.44 6.24 0.77 46% 56% Create counter 0.45 0.00 0.96 0.08 87% 9% Get counter value 0.42 0.00 0.96 0.16 75% 18% Set counter value 4.14 3.84 4.80 0.26 50% 43% Tick counter 0.91 0.48 2.40 0.19 71% 21% Delete counter 5.23 4.32 7.68 0.61 65% 53% Create alarm 5.58 4.80 12.96 0.72 68% 84% Initialize alarm 0.75 0.48 1.92 0.30 90% 56% Disable alarm 8.02 7.20 14.40 0.53 84% 68% Enable alarm 1.32 0.96 3.84 0.29 56% 40% Delete alarm 4.63 4.32 6.24 0.28 53% 43% Tick counter [1 alarm] 23.67 23.52 25.44 0.23 78% 78% Tick counter [many alarms] 7.24 6.72 10.56 0.21 84% 12% Tick & fire counter [1 alarm] 106.83 106.56 110.40 0.35 96% 65% Tick & fire counters [>1 together] 26.18 25.44 29.76 0.46 81% 9% Tick & fire counters [>1 separately] 10.79 10.08 29.28 0.66 53% 55% Alarm latency [0 threads] 17.20 13.92 35.52 1.48 67% 21% Alarm latency [2 threads] 29.69 22.56 47.04 3.58 57% 17% Alarm latency [many threads] 7.66 3.84 19.20 0.00 Clock/interrupt latencyTiming complete - 23530 ms totalPASS:<Basic timing OK>EXIT:<done> </PRE></TD></TR></TABLE></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="rt-sparclite-sleb.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="ecos-user-guide.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="rt-vr4300-vrc4373.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Board: Fujitsu SPARClite Evaluation Board</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="real-time-characterization.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Board: NEC VR4373</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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