| 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: Cogent CMA MPC860 (PowerPC) Evaluation </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: Fujitsu SPARClite Evaluation Board"
|
| 26 |
|
|
HREF="rt-sparclite-sleb.html"><LINK
|
| 27 |
|
|
REL="NEXT"
|
| 28 |
|
|
TITLE="Board: NEC VR4373"
|
| 29 |
|
|
HREF="rt-vr4300-vrc4373.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-sparclite-sleb.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-vr4300-vrc4373.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-PPC-COGENT">Board: Cogent CMA MPC860 (PowerPC) Evaluation</H1
|
| 86 |
|
|
><TABLE
|
| 87 |
|
|
BORDER="5"
|
| 88 |
|
|
BGCOLOR="#E0E0F0"
|
| 89 |
|
|
WIDTH="70%"
|
| 90 |
|
|
><TR
|
| 91 |
|
|
><TD
|
| 92 |
|
|
><PRE
|
| 93 |
|
|
CLASS="LITERALLAYOUT"
|
| 94 |
|
|
>Board: Cogent CMA MPC860 (PowerPC) Evaluation
|
| 95 |
|
|
CPU : MPC860, revision A3 33MHz
|
| 96 |
|
|
|
| 97 |
|
|
|
| 98 |
|
|
eCOS Kernel Timings
|
| 99 |
|
|
Note: all times are in microseconds (.000001) unless otherwise stated
|
| 100 |
|
|
|
| 101 |
|
|
Reading the hardware clock takes 0 'ticks' overhead
|
| 102 |
|
|
... this value will be factored out of all other measurements
|
| 103 |
|
|
Clock interrupt took 14.46 microseconds (30 raw clock ticks)
|
| 104 |
|
|
|
| 105 |
|
|
Testing parameters:
|
| 106 |
|
|
Clock samples: 32
|
| 107 |
|
|
Threads: 24
|
| 108 |
|
|
Thread switches: 128
|
| 109 |
|
|
Mutexes: 32
|
| 110 |
|
|
Mailboxes: 32
|
| 111 |
|
|
Semaphores: 32
|
| 112 |
|
|
Scheduler operations: 128
|
| 113 |
|
|
Counters: 32
|
| 114 |
|
|
Alarms: 32
|
| 115 |
|
|
|
| 116 |
|
|
|
| 117 |
|
|
|
| 118 |
|
|
|
| 119 |
|
|
|
| 120 |
|
|
Confidence
|
| 121 |
|
|
Ave Min Max Var Ave Min Function
|
| 122 |
|
|
====== ====== ====== ====== ========== ========
|
| 123 |
|
|
26.78 23.52 41.76 1.97 66% 37% Create thread
|
| 124 |
|
|
4.00 3.84 4.80 0.23 70% 70% Yield thread [all suspended]
|
| 125 |
|
|
3.78 3.36 7.68 0.38 50% 45% Suspend [suspended] thread
|
| 126 |
|
|
3.56 3.36 7.68 0.37 95% 91% Resume thread
|
| 127 |
|
|
5.28 4.32 12.96 0.76 83% 66% Set priority
|
| 128 |
|
|
0.84 0.48 3.84 0.39 91% 54% Get priority
|
| 129 |
|
|
11.76 10.08 32.16 1.70 95% 95% Kill [suspended] thread
|
| 130 |
|
|
4.14 3.84 8.64 0.45 95% 75% Yield [no other] thread
|
| 131 |
|
|
7.14 5.76 17.76 1.07 79% 70% Resume [suspended low prio] thread
|
| 132 |
|
|
3.60 3.36 8.16 0.42 95% 87% Resume [runnable low prio] thread
|
| 133 |
|
|
6.10 5.28 14.88 0.80 62% 70% Suspend [runnable] thread
|
| 134 |
|
|
4.00 3.84 5.76 0.25 79% 79% Yield [only low prio] thread
|
| 135 |
|
|
3.66 3.36 8.64 0.47 95% 79% Suspend [runnable->not runnable]
|
| 136 |
|
|
11.66 10.08 30.24 1.58 79% 91% Kill [runnable] thread
|
| 137 |
|
|
31.12 27.84 53.28 2.35 87% 50% Resume [high priority] thread
|
| 138 |
|
|
7.52 7.20 15.84 0.30 50% 48% Thread switch
|
| 139 |
|
|
|
| 140 |
|
|
1.00 0.48 2.88 0.21 63% 14% Scheduler lock
|
| 141 |
|
|
2.57 2.40 3.84 0.23 65% 65% Scheduler unlock [0 threads]
|
| 142 |
|
|
2.58 2.40 4.32 0.23 64% 64% Scheduler unlock [1 suspended]
|
| 143 |
|
|
2.59 2.40 4.32 0.24 62% 62% Scheduler unlock [many suspended]
|
| 144 |
|
|
2.59 2.40 4.32 0.24 61% 61% Scheduler unlock [many low prio]
|
| 145 |
|
|
|
| 146 |
|
|
1.69 1.44 5.76 0.37 96% 71% Init mutex
|
| 147 |
|
|
4.15 3.84 10.56 0.47 96% 75% Lock [unlocked] mutex
|
| 148 |
|
|
5.82 5.28 10.56 0.38 62% 28% Unlock [locked] mutex
|
| 149 |
|
|
3.70 3.36 8.64 0.41 96% 59% Trylock [unlocked] mutex
|
| 150 |
|
|
3.42 2.88 6.72 0.26 75% 15% Trylock [locked] mutex
|
| 151 |
|
|
0.36 0.00 1.92 0.25 62% 34% Destroy mutex
|
| 152 |
|
|
43.41 42.72 45.12 0.34 81% 3% Unlock/Lock mutex
|
| 153 |
|
|
|
| 154 |
|
|
3.27 2.88 8.16 0.39 96% 50% Create mbox
|
| 155 |
|
|
0.57 0.00 2.40 0.34 50% 21% Peek [empty] mbox
|
| 156 |
|
|
6.16 5.76 11.04 0.48 87% 87% Put [first] mbox
|
| 157 |
|
|
0.48 0.00 1.92 0.27 50% 28% Peek [1 msg] mbox
|
| 158 |
|
|
5.92 5.28 10.56 0.35 90% 6% Put [second] mbox
|
| 159 |
|
|
0.60 0.00 2.40 0.30 62% 12% Peek [2 msgs] mbox
|
| 160 |
|
|
4.69 4.32 12.00 0.54 93% 93% Get [first] mbox
|
| 161 |
|
|
4.68 4.32 11.52 0.52 93% 93% Get [second] mbox
|
| 162 |
|
|
5.86 5.28 11.04 0.47 62% 31% Tryput [first] mbox
|
| 163 |
|
|
4.00 3.36 9.12 0.38 87% 9% Peek item [non-empty] mbox
|
| 164 |
|
|
4.59 3.84 12.48 0.61 71% 75% Tryget [non-empty] mbox
|
| 165 |
|
|
3.75 3.36 7.68 0.34 53% 43% Peek item [empty] mbox
|
| 166 |
|
|
3.93 3.36 9.60 0.45 65% 31% Tryget [empty] mbox
|
| 167 |
|
|
0.63 0.00 2.40 0.28 68% 6% Waiting to get mbox
|
| 168 |
|
|
0.54 0.00 1.92 0.19 75% 9% Waiting to put mbox
|
| 169 |
|
|
4.84 4.32 12.00 0.47 56% 40% Delete mbox
|
| 170 |
|
|
24.18 23.52 29.76 0.66 81% 75% Put/Get mbox
|
| 171 |
|
|
|
| 172 |
|
|
1.72 0.96 3.84 0.33 90% 6% Init semaphore
|
| 173 |
|
|
3.15 2.88 6.24 0.34 96% 62% Post [0] semaphore
|
| 174 |
|
|
3.85 3.36 8.64 0.30 68% 28% Wait [1] semaphore
|
| 175 |
|
|
3.24 2.88 6.24 0.34 46% 46% Trywait [0] semaphore
|
| 176 |
|
|
3.22 2.88 6.24 0.32 50% 46% Trywait [1] semaphore
|
| 177 |
|
|
0.96 0.48 2.88 0.12 84% 12% Peek semaphore
|
| 178 |
|
|
0.99 0.96 1.92 0.06 96% 96% Destroy semaphore
|
| 179 |
|
|
24.71 24.00 28.80 0.40 87% 6% Post/Wait semaphore
|
| 180 |
|
|
|
| 181 |
|
|
2.31 1.44 6.24 0.77 46% 56% Create counter
|
| 182 |
|
|
0.45 0.00 0.96 0.08 87% 9% Get counter value
|
| 183 |
|
|
0.42 0.00 0.96 0.16 75% 18% Set counter value
|
| 184 |
|
|
4.14 3.84 4.80 0.26 50% 43% Tick counter
|
| 185 |
|
|
0.91 0.48 2.40 0.19 71% 21% Delete counter
|
| 186 |
|
|
|
| 187 |
|
|
5.23 4.32 7.68 0.61 65% 53% Create alarm
|
| 188 |
|
|
5.58 4.80 12.96 0.72 68% 84% Initialize alarm
|
| 189 |
|
|
0.75 0.48 1.92 0.30 90% 56% Disable alarm
|
| 190 |
|
|
8.02 7.20 14.40 0.53 84% 68% Enable alarm
|
| 191 |
|
|
1.32 0.96 3.84 0.29 56% 40% Delete alarm
|
| 192 |
|
|
4.63 4.32 6.24 0.28 53% 43% Tick counter [1 alarm]
|
| 193 |
|
|
23.67 23.52 25.44 0.23 78% 78% Tick counter [many alarms]
|
| 194 |
|
|
7.24 6.72 10.56 0.21 84% 12% Tick & fire counter [1 alarm]
|
| 195 |
|
|
106.83 106.56 110.40 0.35 96% 65% Tick & fire counters [>1 together]
|
| 196 |
|
|
26.18 25.44 29.76 0.46 81% 9% Tick & fire counters [>1 separately]
|
| 197 |
|
|
10.79 10.08 29.28 0.66 53% 55% Alarm latency [0 threads]
|
| 198 |
|
|
17.20 13.92 35.52 1.48 67% 21% Alarm latency [2 threads]
|
| 199 |
|
|
29.69 22.56 47.04 3.58 57% 17% Alarm latency [many threads]
|
| 200 |
|
|
|
| 201 |
|
|
7.66 3.84 19.20 0.00 Clock/interrupt latency
|
| 202 |
|
|
|
| 203 |
|
|
Timing complete - 23530 ms total
|
| 204 |
|
|
|
| 205 |
|
|
PASS:<Basic timing OK>
|
| 206 |
|
|
EXIT:<done>
|
| 207 |
|
|
|
| 208 |
|
|
</PRE
|
| 209 |
|
|
></TD
|
| 210 |
|
|
></TR
|
| 211 |
|
|
></TABLE
|
| 212 |
|
|
></DIV
|
| 213 |
|
|
><DIV
|
| 214 |
|
|
CLASS="NAVFOOTER"
|
| 215 |
|
|
><HR
|
| 216 |
|
|
ALIGN="LEFT"
|
| 217 |
|
|
WIDTH="100%"><TABLE
|
| 218 |
|
|
SUMMARY="Footer navigation table"
|
| 219 |
|
|
WIDTH="100%"
|
| 220 |
|
|
BORDER="0"
|
| 221 |
|
|
CELLPADDING="0"
|
| 222 |
|
|
CELLSPACING="0"
|
| 223 |
|
|
><TR
|
| 224 |
|
|
><TD
|
| 225 |
|
|
WIDTH="33%"
|
| 226 |
|
|
ALIGN="left"
|
| 227 |
|
|
VALIGN="top"
|
| 228 |
|
|
><A
|
| 229 |
|
|
HREF="rt-sparclite-sleb.html"
|
| 230 |
|
|
ACCESSKEY="P"
|
| 231 |
|
|
>Prev</A
|
| 232 |
|
|
></TD
|
| 233 |
|
|
><TD
|
| 234 |
|
|
WIDTH="34%"
|
| 235 |
|
|
ALIGN="center"
|
| 236 |
|
|
VALIGN="top"
|
| 237 |
|
|
><A
|
| 238 |
|
|
HREF="ecos-user-guide.html"
|
| 239 |
|
|
ACCESSKEY="H"
|
| 240 |
|
|
>Home</A
|
| 241 |
|
|
></TD
|
| 242 |
|
|
><TD
|
| 243 |
|
|
WIDTH="33%"
|
| 244 |
|
|
ALIGN="right"
|
| 245 |
|
|
VALIGN="top"
|
| 246 |
|
|
><A
|
| 247 |
|
|
HREF="rt-vr4300-vrc4373.html"
|
| 248 |
|
|
ACCESSKEY="N"
|
| 249 |
|
|
>Next</A
|
| 250 |
|
|
></TD
|
| 251 |
|
|
></TR
|
| 252 |
|
|
><TR
|
| 253 |
|
|
><TD
|
| 254 |
|
|
WIDTH="33%"
|
| 255 |
|
|
ALIGN="left"
|
| 256 |
|
|
VALIGN="top"
|
| 257 |
|
|
>Board: Fujitsu SPARClite Evaluation Board</TD
|
| 258 |
|
|
><TD
|
| 259 |
|
|
WIDTH="34%"
|
| 260 |
|
|
ALIGN="center"
|
| 261 |
|
|
VALIGN="top"
|
| 262 |
|
|
><A
|
| 263 |
|
|
HREF="real-time-characterization.html"
|
| 264 |
|
|
ACCESSKEY="U"
|
| 265 |
|
|
>Up</A
|
| 266 |
|
|
></TD
|
| 267 |
|
|
><TD
|
| 268 |
|
|
WIDTH="33%"
|
| 269 |
|
|
ALIGN="right"
|
| 270 |
|
|
VALIGN="top"
|
| 271 |
|
|
>Board: NEC VR4373</TD
|
| 272 |
|
|
></TR
|
| 273 |
|
|
></TABLE
|
| 274 |
|
|
></DIV
|
| 275 |
|
|
></BODY
|
| 276 |
|
|
></HTML
|
| 277 |
|
|
>
|
