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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: CQ CqREEK SH3 Evaluation Board (cq7708)</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: Hitachi EDK7708"HREF="rt-sh-edk7708.html"><LINKREL="NEXT"TITLE="Board: Hitachi HS7729PCI HS7729 SH3"HREF="rt-sh-hs7729pci.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-sh-edk7708.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-sh-hs7729pci.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="RT-SH-CQ7708">Board: CQ CqREEK SH3 Evaluation Board (cq7708)</H1><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="LITERALLAYOUT"> Board: CQ CqREEK SH3 Evaluation Board (cq7708)CPU: Hitachi SH3/7708 60MHzStartup, main stack : stack used 448 size 4112Startup : Interrupt stack used 80 size 4096Startup : Idlethread stack used 96 size 2048eCos Kernel TimingsNotes: all times are in microseconds (.000001) unless otherwise statedReading the hardware clock takes 2 `ticks' overhead... this value will be factored out of all other measurementsClock interrupt took 19.17 microseconds (71 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 ====== ====== ====== ====== ========== ======== 20.62 14.40 26.93 3.23 48% 26% Create thread 3.16 2.93 4.27 0.09 78% 20% Yield thread [all suspended] 2.91 2.40 5.87 0.17 57% 1% Suspend [suspended] thread 2.73 2.40 6.40 0.19 64% 15% Resume thread 4.05 3.73 11.47 0.27 62% 90% Set priority 0.82 0.27 2.67 0.17 56% 3% Get priority 9.07 8.53 24.27 0.51 78% 71% Kill [suspended] thread 3.19 2.93 7.20 0.14 70% 28% Yield [no other] thread 5.45 4.53 17.87 0.49 78% 17% Resume [suspended low prio] thread 2.67 2.40 5.07 0.15 56% 28% Resume [runnable low prio] thread 4.95 4.27 11.47 0.28 82% 14% Suspend [runnable] thread 3.15 2.93 4.53 0.11 73% 25% Yield [only low prio] thread 2.82 2.40 5.60 0.21 84% 10% Suspend [runnable->not runnable] 8.92 8.00 24.27 0.51 84% 14% Kill [runnable] thread 5.10 4.53 12.00 0.27 59% 39% Destroy [dead] thread 11.81 10.93 37.33 0.81 87% 95% Destroy [runnable] thread 22.15 20.80 54.67 1.27 92% 92% Resume [high priority] thread 6.85 6.67 13.60 0.19 99% 50% Thread switch 0.27 0.27 1.07 0.01 99% 99% Scheduler lock 1.74 1.60 2.67 0.14 99% 50% Scheduler unlock [0 threads] 1.74 1.60 2.93 0.14 99% 50% Scheduler unlock [1 suspended] 1.81 1.60 4.27 0.11 72% 26% Scheduler unlock [many suspended] 1.75 1.60 4.00 0.15 50% 49% Scheduler unlock [many low prio] 1.22 1.07 4.27 0.23 96% 78% Init mutex 3.18 2.93 7.20 0.27 96% 53% Lock [unlocked] mutex 3.40 3.20 8.00 0.31 96% 96% Unlock [locked] mutex 2.77 2.40 5.87 0.22 87% 9% Trylock [unlocked] mutex 2.35 2.13 3.47 0.14 65% 31% Trylock [locked] mutex 0.78 0.53 2.67 0.14 68% 28% Destroy mutex 22.80 22.40 28.80 0.51 96% 71% Unlock/Lock mutex 2.61 2.40 6.13 0.26 96% 62% Create mbox 0.52 0.27 1.60 0.19 40% 37% Peek [empty] mbox 3.54 3.20 7.73 0.35 93% 78% Put [first] mbox 0.50 0.27 1.60 0.17 46% 37% Peek [1 msg] mbox 3.62 3.20 6.93 0.34 59% 65% Put [second] mbox 0.52 0.27 2.13 0.23 31% 43% Peek [2 msgs] mbox 3.93 3.47 10.13 0.43 65% 65% Get [first] mbox 3.92 3.47 7.47 0.40 56% 56% Get [second] mbox 3.37 2.93 6.93 0.36 59% 68% Tryput [first] mbox 3.30 2.67 6.93 0.38 84% 40% Peek item [non-empty] mbox 3.93 3.47 9.33 0.44 65% 71% Tryget [non-empty] mbox 2.94 2.67 6.13 0.25 43% 43% Peek item [empty] mbox 3.23 2.93 6.67 0.27 56% 84% Tryget [empty] mbox 0.58 0.27 2.67 0.20 62% 21% Waiting to get mbox 0.55 0.27 1.87 0.14 62% 21% Waiting to put mbox 3.82 3.47 9.87 0.39 96% 93% Delete mbox 13.35 12.80 21.33 0.50 87% 78% Put/Get mbox 1.22 1.07 2.93 0.19 96% 59% Init semaphore 2.42 2.13 4.27 0.12 81% 15% Post [0] semaphore 2.96 2.67 5.07 0.16 68% 21% Wait [1] semaphore 2.37 2.13 4.53 0.17 62% 34% Trywait [0] semaphore 2.29 2.13 3.47 0.17 96% 53% Trywait [1] semaphore 0.66 0.53 2.13 0.17 96% 68% Peek semaphore 0.81 0.53 2.93 0.13 75% 21% Destroy semaphore 14.47 14.13 21.33 0.43 96% 96% Post/Wait semaphore 1.44 1.07 3.47 0.29 56% 71% Create counter 0.62 0.27 1.07 0.14 62% 3% Get counter value 0.56 0.27 1.60 0.17 50% 25% Set counter value 3.39 3.20 4.27 0.16 53% 40% Tick counter 0.83 0.53 1.87 0.14 68% 15% Delete counter 2.02 1.87 4.00 0.21 93% 68% Create alarm 5.06 4.27 11.73 0.46 78% 18% Initialize alarm 0.73 0.27 2.40 0.22 84% 3% Disable alarm 4.82 4.27 11.47 0.48 81% 65% Enable alarm 1.19 0.80 3.47 0.22 87% 9% Delete alarm 3.63 3.47 5.60 0.20 96% 59% Tick counter [1 alarm] 15.01 14.93 16.53 0.13 87% 87% Tick counter [many alarms] 5.50 5.33 8.00 0.22 96% 65% Tick & fire counter [1 alarm] 74.27 74.13 76.80 0.21 96% 78% Tick & fire counters [>1 together] 16.90 16.53 19.47 0.23 81% 15% Tick & fire counters [>1 separately] 16.70 16.53 36.27 0.33 98% 98% Alarm latency [0 threads] 17.85 16.53 34.40 0.47 73% 0% Alarm latency [2 threads] 63.26 58.40 80.00 2.64 52% 32% Alarm latency [many threads] 30.37 29.33 124.80 1.68 98% 97% Alarm -> thread resume latency 7.37 5.07 17.87 0.00 Clock/interrupt latency 9.00 4.53 26.93 0.00 Clock DSR latency 106 0 376 (main stack: 764) Thread stack used (992 total)All done, main stack : stack used 764 size 4112All done : Interrupt stack used 176 size 4096All done : Idlethread stack used 352 size 2048Timing complete - 30310 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-sh-edk7708.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-sh-hs7729pci.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Board: Hitachi EDK7708</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="real-time-characterization.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Board: Hitachi HS7729PCI HS7729 SH3</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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