OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [doc/] [html/] [user-guide/] [real-time-characterization.html] - Blame information for rev 728

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
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
>Real-time characterization</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="Appendixes"
23
HREF="appendices.html"><LINK
24
REL="PREVIOUS"
25
TITLE="i386/Linux Synthetic Target Setup"
26
HREF="setup-synth-i386linux.html"><LINK
27
REL="NEXT"
28
TITLE="Board: Atmel AT91/EB40"
29
HREF="rt-at91-eb40.html"></HEAD
30
><BODY
31
CLASS="APPENDIX"
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="setup-synth-i386linux.html"
58
ACCESSKEY="P"
59
>Prev</A
60
></TD
61
><TD
62
WIDTH="80%"
63
ALIGN="center"
64
VALIGN="bottom"
65
></TD
66
><TD
67
WIDTH="10%"
68
ALIGN="right"
69
VALIGN="bottom"
70
><A
71
HREF="rt-at91-eb40.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="APPENDIX"
82
><H1
83
><A
84
NAME="REAL-TIME-CHARACTERIZATION">Appendix B. Real-time characterization</H1
85
><DIV
86
CLASS="TOC"
87
><DL
88
><DT
89
><B
90
>Table of Contents</B
91
></DT
92
><DT
93
><A
94
HREF="real-time-characterization.html#RT-ARM-AEB1"
95
>Board: ARM AEB-1 Revision B Evaluation Board</A
96
></DT
97
><DT
98
><A
99
HREF="rt-at91-eb40.html"
100
>Board: Atmel AT91/EB40</A
101
></DT
102
><DT
103
><A
104
HREF="rt-arm-ebsa285.html"
105
>Board: Intel StrongARM EBSA-285 Evaluation Board</A
106
></DT
107
><DT
108
><A
109
HREF="rt-arm-ep7211.html"
110
>Board: Cirrus Logic EDB7111-2 Development Board</A
111
></DT
112
><DT
113
><A
114
HREF="rt-arm-pid.html"
115
>Board: ARM PID Evaluation Board</A
116
></DT
117
><DT
118
><A
119
HREF="rt-arm-iq80310.html"
120
>Board: Intel IQ80310 XScale Development Kit</A
121
></DT
122
><DT
123
><A
124
HREF="rt-tx39-jmr3904.html"
125
>Board: Toshiba JMR3904 Evaluation Board</A
126
></DT
127
><DT
128
><A
129
HREF="rt-tx49-ref4955.html"
130
>Board: Toshiba REF 4955</A
131
></DT
132
><DT
133
><A
134
HREF="rt-mn10300-stdeval1.html"
135
>Board: Matsushita STDEVAL1 Board</A
136
></DT
137
><DT
138
><A
139
HREF="rt-sparclite-sleb.html"
140
>Board: Fujitsu SPARClite Evaluation Board</A
141
></DT
142
><DT
143
><A
144
HREF="rt-ppc-cogent.html"
145
>Board: Cogent CMA MPC860 (PowerPC) Evaluation</A
146
></DT
147
><DT
148
><A
149
HREF="rt-vr4300-vrc4373.html"
150
>Board: NEC VR4373</A
151
></DT
152
><DT
153
><A
154
HREF="rt-arm-assabet.html"
155
>Board: Intel SA1110 (Assabet)</A
156
></DT
157
><DT
158
><A
159
HREF="rt-arm-brutus.html"
160
>Board: Intel SA1100 (Brutus)</A
161
></DT
162
><DT
163
><A
164
HREF="rt-ppc-mbx860.html"
165
>Board: Motorola MBX</A
166
></DT
167
><DT
168
><A
169
HREF="rt-sh-edk7708.html"
170
>Board: Hitachi EDK7708</A
171
></DT
172
><DT
173
><A
174
HREF="rt-sh-cq7708.html"
175
>Board: CQ CqREEK SH3 Evaluation Board (cq7708)</A
176
></DT
177
><DT
178
><A
179
HREF="rt-sh-hs7729pci.html"
180
>Board: Hitachi HS7729PCI HS7729 SH3</A
181
></DT
182
><DT
183
><A
184
HREF="rt-sh-se7751.html"
185
>Board: Hitachi Solution Engine 7751 SH4 (se7751)</A
186
></DT
187
><DT
188
><A
189
HREF="rt-i386-pc.html"
190
>Board: PC</A
191
></DT
192
><DT
193
><A
194
HREF="rt-v850-cebsa1.html"
195
>Board: NEC V850 Cosmo Evaluation Board</A
196
></DT
197
><DT
198
><A
199
HREF="rt-v850-cebsb1.html"
200
>Board: NEC V850 Cosmo Evaluation Board</A
201
></DT
202
></DL
203
></DIV
204
><P
205
>For a discussion of real-time performance measurement for eCos, see the eCos
206
Users' Guide.</P
207
><DIV
208
CLASS="CAUTION"
209
><P
210
></P
211
><TABLE
212
CLASS="CAUTION"
213
BORDER="1"
214
WIDTH="100%"
215
><TR
216
><TD
217
ALIGN="CENTER"
218
><B
219
>Caution</B
220
></TD
221
></TR
222
><TR
223
><TD
224
ALIGN="LEFT"
225
><P
226
>As with the target setup descriptions in the previous appendix, this
227
information will eventually be merged into per-target documents.</P
228
></TD
229
></TR
230
></TABLE
231
></DIV
232
><P
233
>       Sample numbers:
234
      </P
235
><DIV
236
CLASS="SECT1"
237
><H1
238
CLASS="SECT1"
239
><A
240
NAME="RT-ARM-AEB1">Board: ARM AEB-1 Revision B Evaluation Board</H1
241
><TABLE
242
BORDER="5"
243
BGCOLOR="#E0E0F0"
244
WIDTH="70%"
245
><TR
246
><TD
247
><PRE
248
CLASS="LITERALLAYOUT"
249
>&#13;Board: ARM AEB-1 Revision B Evaluation Board
250
 
251
CPU : Sharp LH77790A 24MHz
252
 
253
 
254
 
255
Startup, main stack             : stack used   404 size  2400
256
Startup              :  Interrupt stack used   128 size  2048
257
Startup              : Idlethread stack used    80 size  2048
258
 
259
eCos Kernel Timings
260
Notes: all times are in microseconds (.000001) unless otherwise stated
261
 
262
Reading the hardware clock takes 13 'ticks' overhead
263
... this value will be factored out of all other measurements
264
Clock interrupt took  193.49 microseconds (290 raw clock ticks)
265
 
266
Testing parameters:
267
   Clock samples:            32
268
   Threads:                   7
269
   Thread switches:         128
270
   Mutexes:                  32
271
   Mailboxes:                32
272
   Semaphores:               32
273
   Scheduler operations:    128
274
   Counters:                 32
275
   Alarms:                   32
276
 
277
 
278
                                 Confidence
279
     Ave     Min     Max     Var  Ave  Min  Function
280
  ======  ======  ======  ====== ========== ========
281
  110.19  104.67  116.00    3.26   42%  28% Create thread
282
   34.00   34.00   34.00    0.00  100% 100% Yield thread [all suspended]
283
   24.67   24.67   24.67    0.00  100% 100% Suspend [suspended] thread
284
   25.05   24.67   25.33    0.33   57%  42% Resume thread
285
   37.14   36.67   37.33    0.27   71%  28% Set priority
286
    3.81    3.33    4.00    0.27   71%  28% Get priority
287
   80.00   80.00   80.00    0.00  100% 100% Kill [suspended] thread
288
   33.90   33.33   34.00    0.16   85%  14% Yield [no other] thread
289
   45.90   44.00   46.67    0.54   57%  14% Resume [suspended low prio] thread
290
   24.57   24.00   24.67    0.16   85%  14% Resume [runnable low prio] thread
291
   42.29   36.67   43.33    1.61   85%  14% Suspend [runnable] thread
292
   33.90   33.33   34.00    0.16   85%  14% Yield [only low prio] thread
293
   24.67   24.67   24.67    0.00  100% 100% Suspend [runnable-&#62;not runnable]
294
   80.00   80.00   80.00    0.00  100% 100% Kill [runnable] thread
295
   43.33   43.33   43.33    0.00  100% 100% Destroy [dead] thread
296
  106.29  101.33  107.33    1.41   85%  14% Destroy [runnable] thread
297
  144.95  141.33  166.00    6.01   85%  85% Resume [high priority] thread
298
   78.31   76.67  254.67    2.75   99%  99% Thread switch
299
 
300
    4.00    4.00    4.00    0.00  100% 100% Scheduler lock
301
   16.37   16.00   16.67    0.33   56%  43% Scheduler unlock [0 threads]
302
   16.37   16.00   16.67    0.33   56%  43% Scheduler unlock [1 suspended]
303
   16.37   16.00   16.67    0.33   56%  43% Scheduler unlock [many suspended]
304
   16.37   16.00   16.67    0.33   56%  43% Scheduler unlock [many low prio]
305
 
306
   10.67   10.67   10.67    0.00  100% 100% Init mutex
307
   28.67   28.67   28.67    0.00  100% 100% Lock [unlocked] mutex
308
   30.44   30.00   31.33    0.33   59%  37% Unlock [locked] mutex
309
   25.42   25.33   26.00    0.15   87%  87% Trylock [unlocked] mutex
310
   22.50   22.00   22.67    0.25   75%  25% Trylock [locked] mutex
311
    5.75    5.33    6.00    0.31   62%  37% Destroy mutex
312
  185.33  185.33  185.33    0.00  100% 100% Unlock/Lock mutex
313
 
314
   20.17   20.00   20.67    0.25   75%  75% Create mbox
315
    2.92    2.67    3.33    0.31   62%  62% Peek [empty] mbox
316
   32.42   32.00   32.67    0.31   62%  37% Put [first] mbox
317
    3.00    2.67    3.33    0.33  100%  50% Peek [1 msg] mbox
318
   32.50   32.00   32.67    0.25   75%  25% Put [second] mbox
319
    2.92    2.67    3.33    0.31   62%  62% Peek [2 msgs] mbox
320
   32.83   32.67   33.33    0.25   75%  75% Get [first] mbox
321
   32.67   32.67   32.67    0.00  100% 100% Get [second] mbox
322
   31.33   31.33   31.33    0.00  100% 100% Tryput [first] mbox
323
   27.58   27.33   28.00    0.31   62%  62% Peek item [non-empty] mbox
324
   32.83   32.67   33.33    0.25   75%  75% Tryget [non-empty] mbox
325
   26.50   26.00   26.67    0.25   75%  25% Peek item [empty] mbox
326
   28.00   28.00   28.00    0.00  100% 100% Tryget [empty] mbox
327
    3.25    2.67    3.33    0.15   87%  12% Waiting to get mbox
328
    3.25    2.67    3.33    0.15   87%  12% Waiting to put mbox
329
   30.83   30.67   31.33    0.25   75%  75% Delete mbox
330
  101.08  100.67  101.33    0.31   62%  37% Put/Get mbox
331
 
332
   11.17   10.67   11.33    0.25   75%  25% Init semaphore
333
   24.17   24.00   24.67    0.25   75%  75% Post [0] semaphore
334
   27.08   26.67   27.33    0.31   62%  37% Wait [1] semaphore
335
   22.75   22.67   23.33    0.15   87%  87% Trywait [0] semaphore
336
   22.21   22.00   22.67    0.29   68%  68% Trywait [1] semaphore
337
    7.33    7.33    7.33    0.00  100% 100% Peek semaphore
338
    5.92    5.33    6.00    0.15   87%  12% Destroy semaphore
339
  110.04  110.00  110.67    0.08   93%  93% Post/Wait semaphore
340
 
341
    9.54    9.33   10.00    0.29   68%  68% Create counter
342
    3.92    3.33    4.00    0.15   87%  12% Get counter value
343
    4.00    4.00    4.00    0.00  100% 100% Set counter value
344
   30.92   30.67   31.33    0.31   62%  62% Tick counter
345
    5.75    5.33    6.00    0.31   62%  37% Delete counter
346
 
347
   13.83   13.33   14.00    0.25   75%  25% Create alarm
348
   46.67   46.67   46.67    0.00  100% 100% Initialize alarm
349
    3.67    3.33    4.00    0.33  100%  50% Disable alarm
350
   45.67   45.33   46.00    0.33  100%  50% Enable alarm
351
    8.33    8.00    8.67    0.33  100%  50% Delete alarm
352
   36.33   36.00   36.67    0.33  100%  50% Tick counter [1 alarm]
353
  214.67  214.67  214.67    0.00  100% 100% Tick counter [many alarms]
354
   62.67   62.67   62.67    0.00  100% 100% Tick &#38; fire counter [1 alarm]
355
 1087.04 1075.33 1278.67   21.91   93%  93% Tick &#38; fire counters [&#62;1 together]
356
  246.35  240.67  412.00   10.35   96%  96% Tick &#38; fire counters [&#62;1 separately]
357
  168.01  167.33  237.33    1.08   99%  99% Alarm latency [0 threads]
358
  187.36  168.00  234.67    3.60   86%   1% Alarm latency [2 threads]
359
  187.37  167.33  235.33    3.59   85%   1% Alarm latency [many threads]
360
  303.12  280.00  508.67    3.21   98%   0% Alarm -&#62; thread resume latency
361
 
362
   36.65   36.00   38.67    0.00            Clock/interrupt latency
363
 
364
   65.79   52.00  152.67    0.00            Clock DSR latency
365
 
366
  316     316     316  (main stack:   752)  Thread stack used (1120 total)
367
All done, main stack            : stack used   752 size  2400
368
All done             :  Interrupt stack used   280 size  2048
369
All done             : Idlethread stack used   268 size  2048
370
 
371
Timing complete - 30390 ms total
372
 
373
PASS:&lt;Basic timing OK&#62;
374
EXIT:&lt;done&#62;
375
 
376
        </PRE
377
></TD
378
></TR
379
></TABLE
380
></DIV
381
></DIV
382
><DIV
383
CLASS="NAVFOOTER"
384
><HR
385
ALIGN="LEFT"
386
WIDTH="100%"><TABLE
387
SUMMARY="Footer navigation table"
388
WIDTH="100%"
389
BORDER="0"
390
CELLPADDING="0"
391
CELLSPACING="0"
392
><TR
393
><TD
394
WIDTH="33%"
395
ALIGN="left"
396
VALIGN="top"
397
><A
398
HREF="setup-synth-i386linux.html"
399
ACCESSKEY="P"
400
>Prev</A
401
></TD
402
><TD
403
WIDTH="34%"
404
ALIGN="center"
405
VALIGN="top"
406
><A
407
HREF="ecos-user-guide.html"
408
ACCESSKEY="H"
409
>Home</A
410
></TD
411
><TD
412
WIDTH="33%"
413
ALIGN="right"
414
VALIGN="top"
415
><A
416
HREF="rt-at91-eb40.html"
417
ACCESSKEY="N"
418
>Next</A
419
></TD
420
></TR
421
><TR
422
><TD
423
WIDTH="33%"
424
ALIGN="left"
425
VALIGN="top"
426
>i386/Linux Synthetic Target Setup</TD
427
><TD
428
WIDTH="34%"
429
ALIGN="center"
430
VALIGN="top"
431
><A
432
HREF="appendices.html"
433
ACCESSKEY="U"
434
>Up</A
435
></TD
436
><TD
437
WIDTH="33%"
438
ALIGN="right"
439
VALIGN="top"
440
>Board: Atmel AT91/EB40</TD
441
></TR
442
></TABLE
443
></DIV
444
></BODY
445
></HTML
446
>

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.