| 1 |
1254 |
phoenix |
<!-- Copyright (C) 2003 Red Hat, Inc. -->
|
| 2 |
|
|
<!-- This material may be distributed only subject to the terms -->
|
| 3 |
|
|
<!-- and conditions set forth in the Open Publication License, v1.0 -->
|
| 4 |
|
|
<!-- or later (the latest version is presently available at -->
|
| 5 |
|
|
<!-- http://www.opencontent.org/openpub/). -->
|
| 6 |
|
|
<!-- Distribution of the work or derivative of the work in any -->
|
| 7 |
|
|
<!-- standard (paper) book form is prohibited unless prior -->
|
| 8 |
|
|
<!-- permission is obtained from the copyright holder. -->
|
| 9 |
|
|
<HTML
|
| 10 |
|
|
><HEAD
|
| 11 |
|
|
><TITLE
|
| 12 |
|
|
>Board: Hitachi EDK7708</TITLE
|
| 13 |
|
|
><meta name="MSSmartTagsPreventParsing" content="TRUE">
|
| 14 |
|
|
<META
|
| 15 |
|
|
NAME="GENERATOR"
|
| 16 |
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
|
| 17 |
|
|
"><LINK
|
| 18 |
|
|
REL="HOME"
|
| 19 |
|
|
TITLE="eCos User Guide"
|
| 20 |
|
|
HREF="ecos-user-guide.html"><LINK
|
| 21 |
|
|
REL="UP"
|
| 22 |
|
|
TITLE="Real-time characterization"
|
| 23 |
|
|
HREF="real-time-characterization.html"><LINK
|
| 24 |
|
|
REL="PREVIOUS"
|
| 25 |
|
|
TITLE="Board: Motorola MBX"
|
| 26 |
|
|
HREF="rt-ppc-mbx860.html"><LINK
|
| 27 |
|
|
REL="NEXT"
|
| 28 |
|
|
TITLE="Board: CQ CqREEK SH3 Evaluation Board (cq7708)"
|
| 29 |
|
|
HREF="rt-sh-cq7708.html"></HEAD
|
| 30 |
|
|
><BODY
|
| 31 |
|
|
CLASS="SECT1"
|
| 32 |
|
|
BGCOLOR="#FFFFFF"
|
| 33 |
|
|
TEXT="#000000"
|
| 34 |
|
|
LINK="#0000FF"
|
| 35 |
|
|
VLINK="#840084"
|
| 36 |
|
|
ALINK="#0000FF"
|
| 37 |
|
|
><DIV
|
| 38 |
|
|
CLASS="NAVHEADER"
|
| 39 |
|
|
><TABLE
|
| 40 |
|
|
SUMMARY="Header navigation table"
|
| 41 |
|
|
WIDTH="100%"
|
| 42 |
|
|
BORDER="0"
|
| 43 |
|
|
CELLPADDING="0"
|
| 44 |
|
|
CELLSPACING="0"
|
| 45 |
|
|
><TR
|
| 46 |
|
|
><TH
|
| 47 |
|
|
COLSPAN="3"
|
| 48 |
|
|
ALIGN="center"
|
| 49 |
|
|
>eCos User Guide</TH
|
| 50 |
|
|
></TR
|
| 51 |
|
|
><TR
|
| 52 |
|
|
><TD
|
| 53 |
|
|
WIDTH="10%"
|
| 54 |
|
|
ALIGN="left"
|
| 55 |
|
|
VALIGN="bottom"
|
| 56 |
|
|
><A
|
| 57 |
|
|
HREF="rt-ppc-mbx860.html"
|
| 58 |
|
|
ACCESSKEY="P"
|
| 59 |
|
|
>Prev</A
|
| 60 |
|
|
></TD
|
| 61 |
|
|
><TD
|
| 62 |
|
|
WIDTH="80%"
|
| 63 |
|
|
ALIGN="center"
|
| 64 |
|
|
VALIGN="bottom"
|
| 65 |
|
|
>Appendix B. Real-time characterization</TD
|
| 66 |
|
|
><TD
|
| 67 |
|
|
WIDTH="10%"
|
| 68 |
|
|
ALIGN="right"
|
| 69 |
|
|
VALIGN="bottom"
|
| 70 |
|
|
><A
|
| 71 |
|
|
HREF="rt-sh-cq7708.html"
|
| 72 |
|
|
ACCESSKEY="N"
|
| 73 |
|
|
>Next</A
|
| 74 |
|
|
></TD
|
| 75 |
|
|
></TR
|
| 76 |
|
|
></TABLE
|
| 77 |
|
|
><HR
|
| 78 |
|
|
ALIGN="LEFT"
|
| 79 |
|
|
WIDTH="100%"></DIV
|
| 80 |
|
|
><DIV
|
| 81 |
|
|
CLASS="SECT1"
|
| 82 |
|
|
><H1
|
| 83 |
|
|
CLASS="SECT1"
|
| 84 |
|
|
><A
|
| 85 |
|
|
NAME="RT-SH-EDK7708">Board: Hitachi EDK7708</H1
|
| 86 |
|
|
><TABLE
|
| 87 |
|
|
BORDER="5"
|
| 88 |
|
|
BGCOLOR="#E0E0F0"
|
| 89 |
|
|
WIDTH="70%"
|
| 90 |
|
|
><TR
|
| 91 |
|
|
><TD
|
| 92 |
|
|
><PRE
|
| 93 |
|
|
CLASS="LITERALLAYOUT"
|
| 94 |
|
|
>
|
| 95 |
|
|
Board: Hitachi EDK7708
|
| 96 |
|
|
|
| 97 |
|
|
CPU: Hitachi SH3/7708 60MHz
|
| 98 |
|
|
|
| 99 |
|
|
|
| 100 |
|
|
|
| 101 |
|
|
Startup, main stack : stack used 444 size 4112
|
| 102 |
|
|
Startup : Interrupt stack used 76 size 4096
|
| 103 |
|
|
Startup : Idlethread stack used 96 size 2048
|
| 104 |
|
|
|
| 105 |
|
|
eCos Kernel Timings
|
| 106 |
|
|
Notes: all times are in microseconds (.000001) unless otherwise stated
|
| 107 |
|
|
|
| 108 |
|
|
Reading the hardware clock takes 2 `ticks' overhead
|
| 109 |
|
|
... this value will be factored out of all other measurements
|
| 110 |
|
|
Clock interrupt took 14.75 microseconds (55 raw clock ticks)
|
| 111 |
|
|
|
| 112 |
|
|
Testing parameters:
|
| 113 |
|
|
Clock samples: 32
|
| 114 |
|
|
Threads: 16
|
| 115 |
|
|
Thread switches: 128
|
| 116 |
|
|
Mutexes: 32
|
| 117 |
|
|
Mailboxes: 32
|
| 118 |
|
|
Semaphores: 32
|
| 119 |
|
|
Scheduler operations: 128
|
| 120 |
|
|
Counters: 32
|
| 121 |
|
|
Alarms: 32
|
| 122 |
|
|
|
| 123 |
|
|
|
| 124 |
|
|
Confidence
|
| 125 |
|
|
Ave Min Max Var Ave Min Function
|
| 126 |
|
|
====== ====== ====== ====== ========== ========
|
| 127 |
|
|
15.43 13.60 24.00 1.29 62% 50% Create thread
|
| 128 |
|
|
3.33 3.20 4.27 0.18 93% 68% Yield thread [all suspended]
|
| 129 |
|
|
2.90 2.40 5.33 0.36 81% 62% Suspend [suspended] thread
|
| 130 |
|
|
2.93 2.67 4.80 0.27 93% 87% Resume thread
|
| 131 |
|
|
4.30 3.73 10.13 0.73 93% 93% Set priority
|
| 132 |
|
|
0.65 0.27 2.13 0.28 68% 62% Get priority
|
| 133 |
|
|
9.72 8.53 21.33 1.45 93% 93% Kill [suspended] thread
|
| 134 |
|
|
3.33 3.20 4.53 0.20 93% 75% Yield [no other] thread
|
| 135 |
|
|
5.30 4.80 10.13 0.65 93% 87% Resume [suspended low prio] thread
|
| 136 |
|
|
2.80 2.40 4.53 0.27 81% 75% Resume [runnable low prio] thread
|
| 137 |
|
|
4.82 4.00 8.27 0.49 68% 25% Suspend [runnable] thread
|
| 138 |
|
|
3.32 3.20 4.00 0.16 93% 68% Yield [only low prio] thread
|
| 139 |
|
|
2.82 2.40 4.27 0.25 81% 12% Suspend [runnable->not runnable]
|
| 140 |
|
|
9.45 8.53 19.47 1.25 93% 93% Kill [runnable] thread
|
| 141 |
|
|
5.30 4.53 11.20 0.74 87% 93% Destroy [dead] thread
|
| 142 |
|
|
11.83 10.67 25.07 1.65 93% 93% Destroy [runnable] thread
|
| 143 |
|
|
19.53 17.33 31.20 1.88 75% 75% Resume [high priority] thread
|
| 144 |
|
|
6.70 6.67 11.47 0.07 99% 99% Thread switch
|
| 145 |
|
|
|
| 146 |
|
|
0.33 0.27 0.80 0.10 75% 75% Scheduler lock
|
| 147 |
|
|
1.74 1.60 2.67 0.14 99% 50% Scheduler unlock [0 threads]
|
| 148 |
|
|
1.72 1.60 3.20 0.14 99% 57% Scheduler unlock [1 suspended]
|
| 149 |
|
|
1.81 1.60 3.20 0.10 75% 23% Scheduler unlock [many suspended]
|
| 150 |
|
|
1.86 1.60 3.20 0.02 94% 4% Scheduler unlock [many low prio]
|
| 151 |
|
|
|
| 152 |
|
|
1.22 1.07 3.20 0.20 96% 65% Init mutex
|
| 153 |
|
|
3.21 2.93 5.87 0.17 68% 28% Lock [unlocked] mutex
|
| 154 |
|
|
3.36 2.93 7.47 0.30 84% 75% Unlock [locked] mutex
|
| 155 |
|
|
2.83 2.67 5.33 0.22 96% 65% Trylock [unlocked] mutex
|
| 156 |
|
|
2.53 2.40 2.93 0.14 96% 53% Trylock [locked] mutex
|
| 157 |
|
|
0.28 0.27 0.80 0.03 96% 96% Destroy mutex
|
| 158 |
|
|
20.09 19.73 23.20 0.23 84% 12% Unlock/Lock mutex
|
| 159 |
|
|
|
| 160 |
|
|
2.38 2.13 4.53 0.17 59% 34% Create mbox
|
| 161 |
|
|
0.45 0.27 1.33 0.15 56% 40% Peek [empty] mbox
|
| 162 |
|
|
3.70 3.20 7.20 0.29 84% 59% Put [first] mbox
|
| 163 |
|
|
0.45 0.27 0.80 0.13 62% 34% Peek [1 msg] mbox
|
| 164 |
|
|
3.67 3.20 5.60 0.23 81% 6% Put [second] mbox
|
| 165 |
|
|
0.42 0.27 0.53 0.13 59% 40% Peek [2 msgs] mbox
|
| 166 |
|
|
3.98 3.47 7.47 0.24 59% 9% Get [first] mbox
|
| 167 |
|
|
3.97 3.47 4.80 0.24 59% 12% Get [second] mbox
|
| 168 |
|
|
3.51 3.20 6.67 0.28 56% 78% Tryput [first] mbox
|
| 169 |
|
|
3.29 2.93 5.60 0.29 59% 65% Peek item [non-empty] mbox
|
| 170 |
|
|
4.06 3.47 7.20 0.26 68% 3% Tryget [non-empty] mbox
|
| 171 |
|
|
3.03 2.67 5.33 0.19 93% 3% Peek item [empty] mbox
|
| 172 |
|
|
3.36 3.20 4.80 0.18 96% 56% Tryget [empty] mbox
|
| 173 |
|
|
0.57 0.27 1.33 0.09 84% 3% Waiting to get mbox
|
| 174 |
|
|
0.52 0.27 1.07 0.11 62% 21% Waiting to put mbox
|
| 175 |
|
|
3.88 3.47 7.47 0.30 78% 65% Delete mbox
|
| 176 |
|
|
12.04 11.73 17.33 0.33 96% 96% Put/Get mbox
|
| 177 |
|
|
|
| 178 |
|
|
1.17 1.07 2.40 0.16 71% 71% Init semaphore
|
| 179 |
|
|
2.67 2.40 4.27 0.15 62% 25% Post [0] semaphore
|
| 180 |
|
|
3.00 2.67 4.53 0.17 65% 12% Wait [1] semaphore
|
| 181 |
|
|
2.54 2.40 4.80 0.20 96% 71% Trywait [0] semaphore
|
| 182 |
|
|
2.42 2.40 2.93 0.03 96% 96% Trywait [1] semaphore
|
| 183 |
|
|
0.79 0.53 2.13 0.15 59% 28% Peek semaphore
|
| 184 |
|
|
0.77 0.53 1.87 0.12 71% 25% Destroy semaphore
|
| 185 |
|
|
12.64 12.27 17.07 0.28 84% 96% Post/Wait semaphore
|
| 186 |
|
|
|
| 187 |
|
|
1.27 1.07 2.93 0.17 53% 43% Create counter
|
| 188 |
|
|
0.54 0.27 1.33 0.13 59% 21% Get counter value
|
| 189 |
|
|
0.47 0.27 1.60 0.17 46% 43% Set counter value
|
| 190 |
|
|
3.47 3.20 4.80 0.16 53% 28% Tick counter
|
| 191 |
|
|
0.80 0.53 2.13 0.13 62% 25% Delete counter
|
| 192 |
|
|
|
| 193 |
|
|
1.86 1.60 4.00 0.21 43% 40% Create alarm
|
| 194 |
|
|
5.12 4.80 9.07 0.36 93% 75% Initialize alarm
|
| 195 |
|
|
0.44 0.27 1.33 0.19 87% 53% Disable alarm
|
| 196 |
|
|
4.77 4.27 9.60 0.35 87% 62% Enable alarm
|
| 197 |
|
|
1.02 0.80 2.67 0.18 53% 40% Delete alarm
|
| 198 |
|
|
3.56 3.47 5.33 0.15 84% 84% Tick counter [1 alarm]
|
| 199 |
|
|
15.04 14.93 16.27 0.16 71% 71% Tick counter [many alarms]
|
| 200 |
|
|
5.75 5.60 8.00 0.21 96% 68% Tick & fire counter [1 alarm]
|
| 201 |
|
|
79.60 79.47 81.07 0.17 96% 65% Tick & fire counters [>1 together]
|
| 202 |
|
|
17.04 16.80 18.93 0.15 65% 31% Tick & fire counters [>1 separately]
|
| 203 |
|
|
12.44 12.27 29.60 0.31 96% 96% Alarm latency [0 threads]
|
| 204 |
|
|
14.06 12.27 27.20 0.53 82% 4% Alarm latency [2 threads]
|
| 205 |
|
|
19.62 17.07 38.40 1.44 57% 34% Alarm latency [many threads]
|
| 206 |
|
|
|
| 207 |
|
|
2.79 2.40 6.13 0.00 Clock/interrupt latency
|
| 208 |
|
|
|
| 209 |
|
|
376 376 376 (main stack: 764) Thread stack used (992 total)
|
| 210 |
|
|
All done, main stack : stack used 764 size 4112
|
| 211 |
|
|
All done : Interrupt stack used 176 size 4096
|
| 212 |
|
|
All done : Idlethread stack used 352 size 2048
|
| 213 |
|
|
|
| 214 |
|
|
Timing complete - 23860 ms total
|
| 215 |
|
|
|
| 216 |
|
|
PASS:<Basic timing OK>
|
| 217 |
|
|
EXIT:<done>
|
| 218 |
|
|
|
| 219 |
|
|
</PRE
|
| 220 |
|
|
></TD
|
| 221 |
|
|
></TR
|
| 222 |
|
|
></TABLE
|
| 223 |
|
|
></DIV
|
| 224 |
|
|
><DIV
|
| 225 |
|
|
CLASS="NAVFOOTER"
|
| 226 |
|
|
><HR
|
| 227 |
|
|
ALIGN="LEFT"
|
| 228 |
|
|
WIDTH="100%"><TABLE
|
| 229 |
|
|
SUMMARY="Footer navigation table"
|
| 230 |
|
|
WIDTH="100%"
|
| 231 |
|
|
BORDER="0"
|
| 232 |
|
|
CELLPADDING="0"
|
| 233 |
|
|
CELLSPACING="0"
|
| 234 |
|
|
><TR
|
| 235 |
|
|
><TD
|
| 236 |
|
|
WIDTH="33%"
|
| 237 |
|
|
ALIGN="left"
|
| 238 |
|
|
VALIGN="top"
|
| 239 |
|
|
><A
|
| 240 |
|
|
HREF="rt-ppc-mbx860.html"
|
| 241 |
|
|
ACCESSKEY="P"
|
| 242 |
|
|
>Prev</A
|
| 243 |
|
|
></TD
|
| 244 |
|
|
><TD
|
| 245 |
|
|
WIDTH="34%"
|
| 246 |
|
|
ALIGN="center"
|
| 247 |
|
|
VALIGN="top"
|
| 248 |
|
|
><A
|
| 249 |
|
|
HREF="ecos-user-guide.html"
|
| 250 |
|
|
ACCESSKEY="H"
|
| 251 |
|
|
>Home</A
|
| 252 |
|
|
></TD
|
| 253 |
|
|
><TD
|
| 254 |
|
|
WIDTH="33%"
|
| 255 |
|
|
ALIGN="right"
|
| 256 |
|
|
VALIGN="top"
|
| 257 |
|
|
><A
|
| 258 |
|
|
HREF="rt-sh-cq7708.html"
|
| 259 |
|
|
ACCESSKEY="N"
|
| 260 |
|
|
>Next</A
|
| 261 |
|
|
></TD
|
| 262 |
|
|
></TR
|
| 263 |
|
|
><TR
|
| 264 |
|
|
><TD
|
| 265 |
|
|
WIDTH="33%"
|
| 266 |
|
|
ALIGN="left"
|
| 267 |
|
|
VALIGN="top"
|
| 268 |
|
|
>Board: Motorola MBX</TD
|
| 269 |
|
|
><TD
|
| 270 |
|
|
WIDTH="34%"
|
| 271 |
|
|
ALIGN="center"
|
| 272 |
|
|
VALIGN="top"
|
| 273 |
|
|
><A
|
| 274 |
|
|
HREF="real-time-characterization.html"
|
| 275 |
|
|
ACCESSKEY="U"
|
| 276 |
|
|
>Up</A
|
| 277 |
|
|
></TD
|
| 278 |
|
|
><TD
|
| 279 |
|
|
WIDTH="33%"
|
| 280 |
|
|
ALIGN="right"
|
| 281 |
|
|
VALIGN="top"
|
| 282 |
|
|
>Board: CQ CqREEK SH3 Evaluation Board (cq7708)</TD
|
| 283 |
|
|
></TR
|
| 284 |
|
|
></TABLE
|
| 285 |
|
|
></DIV
|
| 286 |
|
|
></BODY
|
| 287 |
|
|
></HTML
|
| 288 |
|
|
>
|
