| 1 |
28 |
unneback |
<!-- 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: CQ CqREEK SH3 Evaluation Board (cq7708)</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: Hitachi EDK7708"
|
| 26 |
|
|
HREF="rt-sh-edk7708.html"><LINK
|
| 27 |
|
|
REL="NEXT"
|
| 28 |
|
|
TITLE="Board: Hitachi HS7729PCI HS7729 SH3"
|
| 29 |
|
|
HREF="rt-sh-hs7729pci.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-sh-edk7708.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-hs7729pci.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-CQ7708">Board: CQ CqREEK SH3 Evaluation Board (cq7708)</H1
|
| 86 |
|
|
><TABLE
|
| 87 |
|
|
BORDER="5"
|
| 88 |
|
|
BGCOLOR="#E0E0F0"
|
| 89 |
|
|
WIDTH="70%"
|
| 90 |
|
|
><TR
|
| 91 |
|
|
><TD
|
| 92 |
|
|
><PRE
|
| 93 |
|
|
CLASS="LITERALLAYOUT"
|
| 94 |
|
|
> Board: CQ CqREEK SH3 Evaluation Board (cq7708)
|
| 95 |
|
|
|
| 96 |
|
|
CPU: Hitachi SH3/7708 60MHz
|
| 97 |
|
|
|
| 98 |
|
|
Startup, main stack : stack used 448 size 4112
|
| 99 |
|
|
Startup : Interrupt stack used 80 size 4096
|
| 100 |
|
|
Startup : Idlethread stack used 96 size 2048
|
| 101 |
|
|
|
| 102 |
|
|
eCos Kernel Timings
|
| 103 |
|
|
Notes: all times are in microseconds (.000001) unless otherwise stated
|
| 104 |
|
|
|
| 105 |
|
|
Reading the hardware clock takes 2 `ticks' overhead
|
| 106 |
|
|
... this value will be factored out of all other measurements
|
| 107 |
|
|
Clock interrupt took 19.17 microseconds (71 raw clock ticks)
|
| 108 |
|
|
|
| 109 |
|
|
Testing parameters:
|
| 110 |
|
|
Clock samples: 32
|
| 111 |
|
|
Threads: 64
|
| 112 |
|
|
Thread switches: 128
|
| 113 |
|
|
Mutexes: 32
|
| 114 |
|
|
Mailboxes: 32
|
| 115 |
|
|
Semaphores: 32
|
| 116 |
|
|
Scheduler operations: 128
|
| 117 |
|
|
Counters: 32
|
| 118 |
|
|
Alarms: 32
|
| 119 |
|
|
|
| 120 |
|
|
|
| 121 |
|
|
Confidence
|
| 122 |
|
|
Ave Min Max Var Ave Min Function
|
| 123 |
|
|
====== ====== ====== ====== ========== ========
|
| 124 |
|
|
20.62 14.40 26.93 3.23 48% 26% Create thread
|
| 125 |
|
|
3.16 2.93 4.27 0.09 78% 20% Yield thread [all suspended]
|
| 126 |
|
|
2.91 2.40 5.87 0.17 57% 1% Suspend [suspended] thread
|
| 127 |
|
|
2.73 2.40 6.40 0.19 64% 15% Resume thread
|
| 128 |
|
|
4.05 3.73 11.47 0.27 62% 90% Set priority
|
| 129 |
|
|
0.82 0.27 2.67 0.17 56% 3% Get priority
|
| 130 |
|
|
9.07 8.53 24.27 0.51 78% 71% Kill [suspended] thread
|
| 131 |
|
|
3.19 2.93 7.20 0.14 70% 28% Yield [no other] thread
|
| 132 |
|
|
5.45 4.53 17.87 0.49 78% 17% Resume [suspended low prio] thread
|
| 133 |
|
|
2.67 2.40 5.07 0.15 56% 28% Resume [runnable low prio] thread
|
| 134 |
|
|
4.95 4.27 11.47 0.28 82% 14% Suspend [runnable] thread
|
| 135 |
|
|
3.15 2.93 4.53 0.11 73% 25% Yield [only low prio] thread
|
| 136 |
|
|
2.82 2.40 5.60 0.21 84% 10% Suspend [runnable->not runnable]
|
| 137 |
|
|
8.92 8.00 24.27 0.51 84% 14% Kill [runnable] thread
|
| 138 |
|
|
5.10 4.53 12.00 0.27 59% 39% Destroy [dead] thread
|
| 139 |
|
|
11.81 10.93 37.33 0.81 87% 95% Destroy [runnable] thread
|
| 140 |
|
|
22.15 20.80 54.67 1.27 92% 92% Resume [high priority] thread
|
| 141 |
|
|
6.85 6.67 13.60 0.19 99% 50% Thread switch
|
| 142 |
|
|
|
| 143 |
|
|
0.27 0.27 1.07 0.01 99% 99% Scheduler lock
|
| 144 |
|
|
1.74 1.60 2.67 0.14 99% 50% Scheduler unlock [0 threads]
|
| 145 |
|
|
1.74 1.60 2.93 0.14 99% 50% Scheduler unlock [1 suspended]
|
| 146 |
|
|
1.81 1.60 4.27 0.11 72% 26% Scheduler unlock [many suspended]
|
| 147 |
|
|
1.75 1.60 4.00 0.15 50% 49% Scheduler unlock [many low prio]
|
| 148 |
|
|
|
| 149 |
|
|
1.22 1.07 4.27 0.23 96% 78% Init mutex
|
| 150 |
|
|
3.18 2.93 7.20 0.27 96% 53% Lock [unlocked] mutex
|
| 151 |
|
|
3.40 3.20 8.00 0.31 96% 96% Unlock [locked] mutex
|
| 152 |
|
|
2.77 2.40 5.87 0.22 87% 9% Trylock [unlocked] mutex
|
| 153 |
|
|
2.35 2.13 3.47 0.14 65% 31% Trylock [locked] mutex
|
| 154 |
|
|
0.78 0.53 2.67 0.14 68% 28% Destroy mutex
|
| 155 |
|
|
22.80 22.40 28.80 0.51 96% 71% Unlock/Lock mutex
|
| 156 |
|
|
|
| 157 |
|
|
2.61 2.40 6.13 0.26 96% 62% Create mbox
|
| 158 |
|
|
0.52 0.27 1.60 0.19 40% 37% Peek [empty] mbox
|
| 159 |
|
|
3.54 3.20 7.73 0.35 93% 78% Put [first] mbox
|
| 160 |
|
|
0.50 0.27 1.60 0.17 46% 37% Peek [1 msg] mbox
|
| 161 |
|
|
3.62 3.20 6.93 0.34 59% 65% Put [second] mbox
|
| 162 |
|
|
0.52 0.27 2.13 0.23 31% 43% Peek [2 msgs] mbox
|
| 163 |
|
|
3.93 3.47 10.13 0.43 65% 65% Get [first] mbox
|
| 164 |
|
|
3.92 3.47 7.47 0.40 56% 56% Get [second] mbox
|
| 165 |
|
|
3.37 2.93 6.93 0.36 59% 68% Tryput [first] mbox
|
| 166 |
|
|
3.30 2.67 6.93 0.38 84% 40% Peek item [non-empty] mbox
|
| 167 |
|
|
3.93 3.47 9.33 0.44 65% 71% Tryget [non-empty] mbox
|
| 168 |
|
|
2.94 2.67 6.13 0.25 43% 43% Peek item [empty] mbox
|
| 169 |
|
|
3.23 2.93 6.67 0.27 56% 84% Tryget [empty] mbox
|
| 170 |
|
|
0.58 0.27 2.67 0.20 62% 21% Waiting to get mbox
|
| 171 |
|
|
0.55 0.27 1.87 0.14 62% 21% Waiting to put mbox
|
| 172 |
|
|
3.82 3.47 9.87 0.39 96% 93% Delete mbox
|
| 173 |
|
|
13.35 12.80 21.33 0.50 87% 78% Put/Get mbox
|
| 174 |
|
|
|
| 175 |
|
|
1.22 1.07 2.93 0.19 96% 59% Init semaphore
|
| 176 |
|
|
2.42 2.13 4.27 0.12 81% 15% Post [0] semaphore
|
| 177 |
|
|
2.96 2.67 5.07 0.16 68% 21% Wait [1] semaphore
|
| 178 |
|
|
2.37 2.13 4.53 0.17 62% 34% Trywait [0] semaphore
|
| 179 |
|
|
2.29 2.13 3.47 0.17 96% 53% Trywait [1] semaphore
|
| 180 |
|
|
0.66 0.53 2.13 0.17 96% 68% Peek semaphore
|
| 181 |
|
|
0.81 0.53 2.93 0.13 75% 21% Destroy semaphore
|
| 182 |
|
|
14.47 14.13 21.33 0.43 96% 96% Post/Wait semaphore
|
| 183 |
|
|
|
| 184 |
|
|
1.44 1.07 3.47 0.29 56% 71% Create counter
|
| 185 |
|
|
0.62 0.27 1.07 0.14 62% 3% Get counter value
|
| 186 |
|
|
0.56 0.27 1.60 0.17 50% 25% Set counter value
|
| 187 |
|
|
3.39 3.20 4.27 0.16 53% 40% Tick counter
|
| 188 |
|
|
0.83 0.53 1.87 0.14 68% 15% Delete counter
|
| 189 |
|
|
|
| 190 |
|
|
2.02 1.87 4.00 0.21 93% 68% Create alarm
|
| 191 |
|
|
5.06 4.27 11.73 0.46 78% 18% Initialize alarm
|
| 192 |
|
|
0.73 0.27 2.40 0.22 84% 3% Disable alarm
|
| 193 |
|
|
4.82 4.27 11.47 0.48 81% 65% Enable alarm
|
| 194 |
|
|
1.19 0.80 3.47 0.22 87% 9% Delete alarm
|
| 195 |
|
|
3.63 3.47 5.60 0.20 96% 59% Tick counter [1 alarm]
|
| 196 |
|
|
15.01 14.93 16.53 0.13 87% 87% Tick counter [many alarms]
|
| 197 |
|
|
5.50 5.33 8.00 0.22 96% 65% Tick & fire counter [1 alarm]
|
| 198 |
|
|
74.27 74.13 76.80 0.21 96% 78% Tick & fire counters [>1 together]
|
| 199 |
|
|
16.90 16.53 19.47 0.23 81% 15% Tick & fire counters [>1 separately]
|
| 200 |
|
|
16.70 16.53 36.27 0.33 98% 98% Alarm latency [0 threads]
|
| 201 |
|
|
17.85 16.53 34.40 0.47 73% 0% Alarm latency [2 threads]
|
| 202 |
|
|
63.26 58.40 80.00 2.64 52% 32% Alarm latency [many threads]
|
| 203 |
|
|
30.37 29.33 124.80 1.68 98% 97% Alarm -> thread resume latency
|
| 204 |
|
|
|
| 205 |
|
|
7.37 5.07 17.87 0.00 Clock/interrupt latency
|
| 206 |
|
|
|
| 207 |
|
|
9.00 4.53 26.93 0.00 Clock DSR latency
|
| 208 |
|
|
|
| 209 |
|
|
106 0 376 (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 - 30310 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-sh-edk7708.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-hs7729pci.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: Hitachi EDK7708</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: Hitachi HS7729PCI HS7729 SH3</TD
|
| 283 |
|
|
></TR
|
| 284 |
|
|
></TABLE
|
| 285 |
|
|
></DIV
|
| 286 |
|
|
></BODY
|
| 287 |
|
|
></HTML
|
| 288 |
|
|
>
|
