📄 rt-arm-iq80310.html
字号:
<!-- 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: Intel IQ80310 XScale Development Kit</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: ARM PID Evaluation Board"HREF="rt-arm-pid.html"><LINKREL="NEXT"TITLE="Board: Toshiba JMR3904 Evaluation Board"HREF="rt-tx39-jmr3904.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-arm-pid.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-tx39-jmr3904.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="RT-ARM-IQ80310">Board: Intel IQ80310 XScale Development Kit</H1><TABLEBORDER="5"BGCOLOR="#E0E0F0"WIDTH="70%"><TR><TD><PRECLASS="LITERALLAYOUT">Board: Intel IQ80310 XScale Development KitCPU: Intel XScale 600MHzStartup, main stack : stack used 388 size 2400Startup : Interrupt stack used 148 size 4096Startup : Idlethread stack used 76 size 1120eCos Kernel TimingsNotes: all times are in microseconds (.000001) unless otherwise statedReading the hardware clock takes 73 'ticks' overhead... this value will be factored out of all other measurementsClock 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 2400All done : Interrupt stack used 268 size 4096All done : Idlethread stack used 244 size 1120Timing complete - 30300 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-arm-pid.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-tx39-jmr3904.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Board: ARM PID 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: Toshiba JMR3904 Evaluation Board</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -