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12 >Board: Intel SA1110 (Assabet)</TITLE
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19 TITLE="eCos User Guide"
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22 TITLE="Real-time characterization"
23 HREF="real-time-characterization.html"><LINK
25 TITLE="Board: NEC VR4373"
26 HREF="rt-vr4300-vrc4373.html"><LINK
28 TITLE="Board: Intel SA1100 (Brutus)"
29 HREF="rt-arm-brutus.html"></HEAD
40 SUMMARY="Header navigation table"
57 HREF="rt-vr4300-vrc4373.html"
65 >Appendix B. Real-time characterization</TD
71 HREF="rt-arm-brutus.html"
85 NAME="RT-ARM-ASSABET">Board: Intel SA1110 (Assabet)</H1
94 >Board: Intel SA1110 (Assabet)
96 CPU : StrongARM 221.2 MHz
100 Microseconds for one run through Dhrystone: 3.3
101 Dhrystones per Second: 306748.5
102 VAX MIPS rating = 174.586
104 Startup, main stack : stack used 420 size 2400
105 Startup : Interrupt stack used 136 size 4096
106 Startup : Idlethread stack used 84 size 2048
109 Notes: all times are in microseconds (.000001) unless otherwise stated
111 Reading the hardware clock takes 0 `ticks' overhead
112 ... this value will be factored out of all other measurements
113 Clock interrupt took 3.20 microseconds (11 raw clock ticks)
122 Scheduler operations: 128
128 Ave Min Max Var Ave Min Function
129 ====== ====== ====== ====== ========== ========
130 5.98 4.88 14.38 0.70 57% 35% Create thread
131 0.86 0.81 1.90 0.08 87% 87% Yield thread [all suspended]
132 1.05 0.81 3.53 0.19 46% 39% Suspend [suspended] thread
133 1.07 0.81 3.80 0.18 48% 35% Resume thread
134 1.36 1.09 5.97 0.22 45% 39% Set priority
135 0.73 0.54 1.90 0.19 85% 50% Get priority
136 2.93 2.44 13.56 0.39 79% 70% Kill [suspended] thread
137 0.89 0.81 4.34 0.14 89% 89% Yield [no other] thread
138 1.63 1.36 4.61 0.17 57% 29% Resume [suspended low prio] thread
139 1.03 0.81 3.53 0.19 46% 42% Resume [runnable low prio] thread
140 1.74 1.36 6.51 0.22 87% 6% Suspend [runnable] thread
141 0.93 0.81 4.61 0.18 98% 78% Yield [only low prio] thread
142 1.06 0.81 3.26 0.19 42% 39% Suspend [runnable->not runnable]
143 2.56 1.90 13.02 0.41 87% 34% Kill [runnable] thread
144 2.02 1.63 7.05 0.22 92% 3% Destroy [dead] thread
145 3.09 2.44 15.19 0.51 78% 46% Destroy [runnable] thread
146 6.77 5.43 13.02 0.59 75% 17% Resume [high priority] thread
147 1.81 1.63 7.87 0.18 49% 49% Thread switch
149 0.25 0.00 1.36 0.05 89% 10% Scheduler lock
150 0.51 0.27 1.36 0.06 85% 13% Scheduler unlock [0 threads]
151 0.51 0.27 1.09 0.06 85% 13% Scheduler unlock [1 suspended]
152 0.51 0.27 1.09 0.07 85% 14% Scheduler unlock [many suspended]
153 0.51 0.27 1.09 0.06 85% 13% Scheduler unlock [many low prio]
155 0.52 0.27 2.17 0.15 62% 31% Init mutex
156 0.97 0.54 4.34 0.28 84% 65% Lock [unlocked] mutex
157 1.05 0.81 5.15 0.28 96% 96% Unlock [locked] mutex
158 0.86 0.54 3.26 0.24 65% 31% Trylock [unlocked] mutex
159 0.79 0.54 3.53 0.23 43% 46% Trylock [locked] mutex
160 0.33 0.27 1.63 0.11 90% 90% Destroy mutex
161 4.16 3.80 8.95 0.30 75% 96% Unlock/Lock mutex
163 0.70 0.54 2.98 0.21 96% 65% Create mbox
164 0.59 0.27 1.63 0.14 75% 9% Peek [empty] mbox
165 1.33 1.09 5.70 0.31 96% 93% Put [first] mbox
166 0.61 0.27 1.63 0.13 81% 3% Peek [1 msg] mbox
167 1.35 1.09 5.43 0.31 96% 87% Put [second] mbox
168 0.58 0.27 1.36 0.11 78% 6% Peek [2 msgs] mbox
169 1.38 1.09 4.88 0.25 59% 37% Get [first] mbox
170 1.40 1.09 5.15 0.26 62% 34% Get [second] mbox
171 1.27 0.81 4.88 0.28 90% 65% Tryput [first] mbox
172 1.34 0.81 4.61 0.22 59% 6% Peek item [non-empty] mbox
173 1.47 1.09 5.15 0.27 84% 12% Tryget [non-empty] mbox
174 1.12 0.81 4.34 0.23 59% 31% Peek item [empty] mbox
175 1.14 0.81 4.07 0.24 71% 25% Tryget [empty] mbox
176 0.59 0.27 1.36 0.12 78% 6% Waiting to get mbox
177 0.59 0.27 1.36 0.12 78% 6% Waiting to put mbox
178 1.28 0.81 5.43 0.32 87% 78% Delete mbox
179 2.64 2.17 10.31 0.48 96% 96% Put/Get mbox
181 0.47 0.27 2.17 0.19 46% 46% Init semaphore
182 0.77 0.54 3.80 0.26 90% 56% Post [0] semaphore
183 0.90 0.54 4.07 0.26 75% 21% Wait [1] semaphore
184 0.85 0.54 3.26 0.21 56% 28% Trywait [0] semaphore
185 0.69 0.54 2.17 0.18 96% 62% Trywait [1] semaphore
186 0.44 0.27 2.17 0.19 96% 56% Peek semaphore
187 0.38 0.27 1.90 0.17 96% 75% Destroy semaphore
188 2.74 2.44 9.49 0.42 96% 96% Post/Wait semaphore
190 0.43 0.27 1.90 0.18 96% 56% Create counter
191 0.49 0.00 2.17 0.18 56% 3% Get counter value
192 0.33 0.00 1.63 0.13 78% 6% Set counter value
193 1.03 0.81 2.44 0.22 84% 50% Tick counter
194 0.42 0.27 1.90 0.20 90% 65% Delete counter
196 0.70 0.54 2.44 0.20 93% 62% Create alarm
197 1.65 1.36 6.78 0.40 96% 81% Initialize alarm
198 0.75 0.54 1.63 0.18 43% 43% Disable alarm
199 1.75 1.36 7.05 0.38 65% 81% Enable alarm
200 0.81 0.54 2.44 0.15 62% 28% Delete alarm
201 1.01 0.81 2.17 0.16 56% 40% Tick counter [1 alarm]
202 4.19 4.07 5.43 0.16 96% 68% Tick counter [many alarms]
203 1.48 1.36 3.80 0.20 96% 78% Tick & fire counter [1 alarm]
204 20.23 20.07 22.52 0.21 96% 65% Tick & fire counters [>1 together]
205 4.70 4.61 6.78 0.16 87% 87% Tick & fire counters [>1 separately]
206 2.81 2.71 14.38 0.20 98% 98% Alarm latency [0 threads]
207 3.19 2.71 13.56 0.38 73% 59% Alarm latency [2 threads]
208 9.71 7.87 18.17 1.25 59% 53% Alarm latency [many threads]
209 5.77 5.43 45.57 0.68 97% 97% Alarm -> thread resume latency
211 2.38 0.81 9.49 0.00 Clock/interrupt latency
213 2.02 1.09 7.32 0.00 Clock DSR latency
215 11 0 316 (main stack: 764) Thread stack used (1120 total)
216 All done, main stack : stack used 764 size 2400
217 All done : Interrupt stack used 287 size 4096
218 All done : Idlethread stack used 272 size 2048
220 Timing complete - 30220 ms total
231 SUMMARY="Footer navigation table"
242 HREF="rt-vr4300-vrc4373.html"
251 HREF="ecos-user-guide.html"
260 HREF="rt-arm-brutus.html"
270 >Board: NEC VR4373</TD
276 HREF="real-time-characterization.html"
284 >Board: Intel SA1100 (Brutus)</TD