doc/html/user-guide/rt-tx39-jmr3904.html

   1 <!-- 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: Toshiba JMR3904 Evaluation Board</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: Intel IQ80310 XScale Development Kit"
  26 HREF="rt-arm-iq80310.html"><LINK
  27 REL="NEXT"
  28 TITLE="Board: Toshiba REF 4955"
  29 HREF="rt-tx49-ref4955.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-arm-iq80310.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-tx49-ref4955.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-TX39-JMR3904">Board: Toshiba JMR3904 Evaluation Board</H1
  86 ><TABLE
  87 BORDER="5"
  88 BGCOLOR="#E0E0F0"
  89 WIDTH="70%"
  90 ><TR
  91 ><TD
  92 ><PRE
  93 CLASS="LITERALLAYOUT"
  94 >&#13;Board: Toshiba JMR3904 Evaluation Board
  95
  96 CPU  : TMPR3904F 50MHz
  97
  98
  99 eCOS Kernel Timings
 100 Note: all times are in microseconds (.000001) unless otherwise stated
 101
 102 Reading the hardware clock takes 0 'ticks' overhead
 103 ... this value will be factored out of all other measurements
 104 Clock interrupt took   29.68 microseconds (45 raw clock ticks)
 105
 106 Testing parameters:
 107    Clock samples:          32
 108    Threads:                24
 109    Thread switches:       128
 110    Mutexes:                32
 111    Mailboxes:              32
 112    Semaphores:             32
 113    Scheduler operations:  128
 114    Counters:               32
 115    Alarms:                 32
 116
 117
 118                                  Confidence
 119      Ave     Min     Max     Var  Ave  Min  Function
 120   ======  ======  ======  ====== ========== ========
 121    13.62   11.72   27.99    1.51   79%  54% Create thread
 122     2.77    2.60    3.91    0.26   79%  79% Yield thread [all suspended]
 123     3.31    2.60    6.51    0.27   83%  12% Suspend [suspended] thread
 124     2.58    1.95    7.81    0.47   58%  37% Resume thread
 125     4.94    4.56   11.07    0.60   95%  79% Set priority
 126     0.71    0.65    1.95    0.10   95%  95% Get priority
 127    14.97   14.32   25.39    0.87   95%  95% Kill [suspended] thread
 128     2.25    1.95    9.11    0.57   95%  95% Yield [no other] thread
 129     7.27    6.51   12.37    0.42   79%  16% Resume [suspended low prio] thread
 130     2.28    1.95    7.16    0.51   95%  79% Resume [runnable low prio] thread
 131     4.31    3.26   12.37    0.75   87%  79% Suspend [runnable] thread
 132     2.17    1.95    7.16    0.42   95%  95% Yield [only low prio] thread
 133     2.39    1.95    6.51    0.51   95%  58% Suspend [runnable-&#62;not runnable]
 134    13.43   12.37   22.79    0.80   91%  91% Kill [runnable] thread
 135    22.30   20.83   37.76    1.76   91%  91% Resume [high priority] thread
 136     4.62    4.56   11.07    0.13   98%  98% Thread switch
 137
 138     1.51    1.30    2.60    0.29   68%  68% Scheduler lock
 139     2.36    1.95    3.26    0.31   61%  37% Scheduler unlock [0 threads]
 140     2.39    1.95    5.21    0.32   62%  36% Scheduler unlock [1 suspended]
 141     2.38    1.95    4.56    0.32   61%  37% Scheduler unlock [many suspended]
 142     2.38    1.95    5.21    0.32   61%  37% Scheduler unlock [many low prio]
 143
 144     0.90    0.65    3.26    0.35   71%  71% Init mutex
 145     2.48    1.95    8.46    0.50   50%  46% Lock [unlocked] mutex
 146     2.83    2.60    9.11    0.42   93%  93% Unlock [locked] mutex
 147     2.30    1.95    6.51    0.45   96%  65% Trylock [unlocked] mutex
 148     1.99    1.30    5.86    0.24   84%  12% Trylock [locked] mutex
 149     0.04    0.00    1.30    0.08   96%  96% Destroy mutex
 150    42.40   42.32   44.92    0.16   96%  96% Unlock/Lock mutex
 151
 152     1.44    1.30    5.86    0.28   96%  96% Create mbox
 153     0.51    0.00    1.30    0.25   71%  25% Peek [empty] mbox
 154     2.93    2.60    9.11    0.51   96%  78% Put [first] mbox
 155     0.51    0.00    1.30    0.25   71%  25% Peek [1 msg] mbox
 156     4.19    3.91    5.21    0.34   59%  59% Put [second] mbox
 157     0.45    0.00    0.65    0.28   68%  31% Peek [2 msgs] mbox
 158     3.28    2.60   10.42    0.45   65%  31% Get [first] mbox
 159     3.34    2.60    9.77    0.40   78%  18% Get [second] mbox
 160     2.69    1.95    9.11    0.40   78%  18% Tryput [first] mbox
 161     2.75    1.95    7.81    0.32   93%   3% Peek item [non-empty] mbox
 162     3.15    2.60    9.11    0.48   53%  43% Tryget [non-empty] mbox
 163     2.22    1.95    6.51    0.41   96%  78% Peek item [empty] mbox
 164     2.40    1.95    5.86    0.42   50%  46% Tryget [empty] mbox
 165     0.47    0.00    0.65    0.26   71%  28% Waiting to get mbox
 166     0.59    0.00    1.30    0.15   84%  12% Waiting to put mbox
 167     4.01    3.26   10.42    0.40   81%  15% Delete mbox
 168    26.18   26.04   30.60    0.28   96%  96% Put/Get mbox
 169
 170     0.92    0.65    3.91    0.38   71%  71% Init semaphore
 171     2.24    1.95    6.51    0.43   96%  75% Post [0] semaphore
 172     2.32    1.95    7.16    0.48   96%  65% Wait [1] semaphore
 173     2.03    1.30    5.86    0.24   90%   6% Trywait [0] semaphore
 174     1.91    1.30    4.56    0.23   78%  18% Trywait [1] semaphore
 175     0.77    0.00    1.95    0.30   65%   9% Peek semaphore
 176     0.61    0.00    1.95    0.15   84%  12% Destroy semaphore
 177    22.62   22.14   30.60    0.61   96%  62% Post/Wait semaphore
 178
 179     0.92    0.65    3.91    0.38   71%  71% Create counter
 180     0.69    0.65    1.95    0.08   96%  96% Get counter value
 181     0.41    0.00    1.30    0.33   56%  40% Set counter value
 182     3.21    2.60    5.86    0.27   71%  21% Tick counter
 183     0.65    0.00    3.26    0.16   84%  12% Delete counter
 184
 185     1.57    1.30    4.56    0.38   71%  71% Create alarm
 186     4.52    3.91   13.02    0.57   50%  46% Initialize alarm
 187     0.61    0.00    1.95    0.15   84%  12% Disable alarm
 188     4.43    3.91    9.11    0.43   56%  40% Enable alarm
 189     0.87    0.65    2.60    0.32   71%  71% Delete alarm
 190     2.93    2.60    6.51    0.43   96%  65% Tick counter [1 alarm]
 191    14.83   14.32   22.79    0.60   96%  59% Tick counter [many alarms]
 192     4.88    4.56   11.07    0.51   96%  78% Tick &#38; fire counter [1 alarm]
 193    83.25   82.03  102.86    1.23   96%  93% Tick &#38; fire counters [&#62;1 together]
 194    17.58   16.93   27.34    0.61   50%  46% Tick &#38; fire counters [&#62;1 separately]
 195    26.18   24.74   40.36    0.30   97%   0% Alarm latency [0 threads]
 196    33.88   29.30   56.64    1.70   85%   6% Alarm latency [2 threads]
 197    36.37   29.30   61.20    3.25   53%  24% Alarm latency [many threads]
 198
 199     7.85    6.51   14.97    0.00            Clock/interrupt latency
 200
 201 Timing complete - 23540 ms total
 202
 203 PASS:&lt;Basic timing OK&#62;
 204 EXIT:&lt;done&#62;
 205
 206         </PRE
 207 ></TD
 208 ></TR
 209 ></TABLE
 210 ></DIV
 211 ><DIV
 212 CLASS="NAVFOOTER"
 213 ><HR
 214 ALIGN="LEFT"
 215 WIDTH="100%"><TABLE
 216 SUMMARY="Footer navigation table"
 217 WIDTH="100%"
 218 BORDER="0"
 219 CELLPADDING="0"
 220 CELLSPACING="0"
 221 ><TR
 222 ><TD
 223 WIDTH="33%"
 224 ALIGN="left"
 225 VALIGN="top"
 226 ><A
 227 HREF="rt-arm-iq80310.html"
 228 ACCESSKEY="P"
 229 >Prev</A
 230 ></TD
 231 ><TD
 232 WIDTH="34%"
 233 ALIGN="center"
 234 VALIGN="top"
 235 ><A
 236 HREF="ecos-user-guide.html"
 237 ACCESSKEY="H"
 238 >Home</A
 239 ></TD
 240 ><TD
 241 WIDTH="33%"
 242 ALIGN="right"
 243 VALIGN="top"
 244 ><A
 245 HREF="rt-tx49-ref4955.html"
 246 ACCESSKEY="N"
 247 >Next</A
 248 ></TD
 249 ></TR
 250 ><TR
 251 ><TD
 252 WIDTH="33%"
 253 ALIGN="left"
 254 VALIGN="top"
 255 >Board: Intel IQ80310 XScale Development Kit</TD
 256 ><TD
 257 WIDTH="34%"
 258 ALIGN="center"
 259 VALIGN="top"
 260 ><A
 261 HREF="real-time-characterization.html"
 262 ACCESSKEY="U"
 263 >Up</A
 264 ></TD
 265 ><TD
 266 WIDTH="33%"
 267 ALIGN="right"
 268 VALIGN="top"
 269 >Board: Toshiba REF 4955</TD
 270 ></TR
 271 ></TABLE
 272 ></DIV
 273 ></BODY
 274 ></HTML
 275 >