📄 rt-vr4300-vrc4373.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: NEC VR4373</TITLE
><meta name="MSSmartTagsPreventParsing" content="TRUE">
<META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="eCos User Guide"
HREF="ecos-user-guide.html"><LINK
REL="UP"
TITLE="Real-time characterization"
HREF="real-time-characterization.html"><LINK
REL="PREVIOUS"
TITLE="Board: Cogent CMA MPC860 (PowerPC) Evaluation "
HREF="rt-ppc-cogent.html"><LINK
REL="NEXT"
TITLE="Board: Intel SA1110 (Assabet)"
HREF="rt-arm-assabet.html"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>eCos User Guide</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="rt-ppc-cogent.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Appendix B. Real-time characterization</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="rt-arm-assabet.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="RT-VR4300-VRC4373">Board: NEC VR4373</H1
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="LITERALLAYOUT"
> Board: NEC VR4373
CPU : NEC VR4300 133MHz
Startup, main stack : stack used 1304 size 3576
Startup : Interrupt stack used 980 size 4096
Startup : Idlethread stack used 494 size 2552
eCos Kernel Timings
Notes: all times are in microseconds (.000001) unless otherwise stated
Reading the hardware clock takes 3 `ticks' overhead
... this value will be factored out of all other measurements
Clock interrupt took 6.49 microseconds (431 raw clock ticks)
Testing parameters:
Clock samples: 32
Threads: 16
Thread switches: 128
Mutexes: 32
Mailboxes: 32
Semaphores: 32
Scheduler operations: 128
Counters: 32
Alarms: 32
Confidence
Ave Min Max Var Ave Min Function
====== ====== ====== ====== ========== ========
17.21 16.18 22.14 0.88 75% 68% Create thread
0.84 0.78 1.29 0.10 81% 81% Yield thread [all suspended]
0.90 0.62 3.20 0.35 87% 87% Suspend [suspended] thread
0.74 0.65 1.16 0.12 81% 68% Resume thread
1.11 0.90 1.70 0.25 75% 68% Set priority
0.11 0.05 0.35 0.09 75% 75% Get priority
2.93 2.24 8.27 0.78 93% 75% Kill [suspended] thread
0.88 0.78 1.92 0.16 93% 81% Yield [no other] thread
1.82 1.20 4.71 0.62 87% 62% Resume [suspended low prio] thread
0.70 0.63 0.86 0.09 68% 68% Resume [runnable low prio] thread
1.21 1.07 1.61 0.13 81% 68% Suspend [runnable] thread
0.86 0.78 1.58 0.13 81% 81% Yield [only low prio] thread
0.69 0.62 0.84 0.09 68% 68% Suspend [runnable->not runnable]
2.64 2.24 4.35 0.43 81% 62% Kill [runnable] thread
1.50 1.07 5.82 0.56 93% 87% Destroy [dead] thread
3.66 2.75 7.74 0.82 50% 56% Destroy [runnable] thread
13.65 8.33 27.88 3.70 50% 43% Resume [high priority] thread
2.04 1.89 3.32 0.15 46% 49% Thread switch
0.19 0.05 0.83 0.13 48% 44% Scheduler lock
0.50 0.41 1.59 0.13 89% 73% Scheduler unlock [0 threads]
0.52 0.41 1.29 0.14 89% 64% Scheduler unlock [1 suspended]
0.56 0.41 1.49 0.15 42% 47% Scheduler unlock [many suspended]
0.56 0.41 1.41 0.15 43% 47% Scheduler unlock [many low prio]
0.57 0.20 2.33 0.27 65% 50% Init mutex
0.89 0.75 3.35 0.20 96% 75% Lock [unlocked] mutex
0.90 0.74 4.38 0.25 96% 93% Unlock [locked] mutex
0.77 0.65 2.63 0.17 96% 75% Trylock [unlocked] mutex
0.66 0.59 1.16 0.10 75% 75% Trylock [locked] mutex
0.07 0.00 0.45 0.09 75% 75% Destroy mutex
7.95 7.71 9.49 0.19 50% 46% Unlock/Lock mutex
1.04 0.81 3.44 0.27 93% 68% Create mbox
0.10 0.02 0.57 0.11 71% 68% Peek [empty] mbox
1.15 0.83 4.71 0.31 53% 71% Put [first] mbox
0.10 0.02 0.57 0.12 68% 68% Peek [1 msg] mbox
1.01 0.83 3.83 0.22 93% 75% Put [second] mbox
0.09 0.02 0.57 0.10 71% 71% Peek [2 msgs] mbox
1.03 0.81 5.02 0.27 96% 87% Get [first] mbox
0.93 0.81 1.61 0.14 84% 62% Get [second] mbox
1.07 0.77 4.18 0.23 68% 50% Tryput [first] mbox
0.89 0.72 3.49 0.21 93% 71% Peek item [non-empty] mbox
1.04 0.83 4.09 0.26 90% 81% Tryget [non-empty] mbox
0.79 0.68 1.97 0.15 87% 68% Peek item [empty] mbox
0.84 0.72 2.36 0.17 93% 68% Tryget [empty] mbox
0.13 0.02 0.59 0.13 87% 62% Waiting to get mbox
0.13 0.02 0.90 0.13 90% 62% Waiting to put mbox
0.93 0.77 3.23 0.21 90% 71% Delete mbox
4.74 4.51 8.80 0.32 93% 78% Put/Get mbox
0.50 0.21 1.95 0.29 90% 50% Init semaphore
0.86 0.57 2.87 0.29 93% 56% Post [0] semaphore
1.01 0.74 3.62 0.28 93% 56% Wait [1] semaphore
0.87 0.60 3.17 0.28 90% 59% Trywait [0] semaphore
0.74 0.62 1.70 0.14 93% 56% Trywait [1] semaphore
0.36 0.11 1.11 0.26 65% 56% Peek semaphore
0.25 0.12 1.19 0.14 93% 56% Destroy semaphore
7.85 7.52 8.93 0.21 62% 43% Post/Wait semaphore
0.90 0.44 3.08 0.29 65% 28% Create counter
0.07 0.05 0.89 0.05 96% 96% Get counter value
0.06 0.05 0.33 0.02 96% 96% Set counter value
0.88 0.86 1.62 0.05 96% 96% Tick counter
0.13 0.12 0.41 0.02 96% 96% Delete counter
1.37 0.81 2.95 0.27 62% 25% Create alarm
1.35 1.17 6.03 0.31 96% 93% Initialize alarm
0.11 0.08 0.65 0.05 90% 90% Disable alarm
1.23 1.14 3.05 0.15 93% 87% Enable alarm
0.21 0.18 0.47 0.04 90% 90% Delete alarm
1.03 0.99 2.11 0.07 96% 96% Tick counter [1 alarm]
4.96 4.96 4.96 0.00 100% 100% Tick counter [many alarms]
1.70 1.67 2.51 0.05 96% 96% Tick & fire counter [1 alarm]
26.39 26.38 26.71 0.02 96% 96% Tick & fire counters [>1 together]
5.65 5.64 5.91 0.02 96% 96% Tick & fire counters [>1 separately]
2.55 2.38 9.86 0.19 96% 54% Alarm latency [0 threads]
5.37 3.80 9.73 0.95 50% 34% Alarm latency [2 threads]
8.79 5.83 16.12 1.29 57% 14% Alarm latency [many threads]
5.85 2.26 16.24 0.00 Clock/interrupt latency
1540 1536 1544 (main stack: 1664) Thread stack used (2552 total)
All done, main stack : stack used 1664 size 3576
All done : Interrupt stack used 312 size 4096
All done : Idlethread stack used 1440 size 2552
Timing complete - 23810 ms total
PASS:<Basic timing OK>
EXIT:<done>
</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="rt-ppc-cogent.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ecos-user-guide.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="rt-arm-assabet.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Board: Cogent CMA MPC860 (PowerPC) Evaluation</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="real-time-characterization.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Board: Intel SA1110 (Assabet)</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 + -