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>Board: ARM PID Evaluation Board</TITLE
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NAME="RT-ARM-PID">Board: ARM PID Evaluation Board</H1
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NAME="AEN4506">CPU : ARM 7TDMI 20 MHz</H2
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>Board: ARM PID Evaluation Board
CPU : ARM 7TDMI 20 MHz
Startup, main stack : stack used 404 size 2400
Startup : Interrupt stack used 136 size 4096
Startup : Idlethread stack used 84 size 2048
eCos Kernel Timings
Notes: all times are in microseconds (.000001) unless otherwise stated
Reading the hardware clock takes 6 'ticks' overhead
... this value will be factored out of all other measurements
Clock interrupt took 120.74 microseconds (150 raw clock ticks)
Testing parameters:
Clock samples: 32
Threads: 50
Thread switches: 128
Mutexes: 32
Mailboxes: 32
Semaphores: 32
Scheduler operations: 128
Counters: 32
Alarms: 32
Confidence
Ave Min Max Var Ave Min Function
====== ====== ====== ====== ========== ========
99.01 68.00 129.60 15.62 50% 26% Create thread
21.60 21.60 21.60 0.00 100% 100% Yield thread [all suspended]
15.65 15.20 16.00 0.39 56% 44% Suspend [suspended] thread
15.79 15.20 16.00 0.31 74% 26% Resume thread
23.65 23.20 24.00 0.39 56% 44% Set priority
2.26 1.60 2.40 0.24 82% 18% Get priority
51.39 51.20 52.00 0.29 76% 76% Kill [suspended] thread
21.60 21.60 21.60 0.00 100% 100% Yield [no other] thread
29.47 28.00 29.60 0.22 86% 2% Resume [suspended low prio] thread
15.60 15.20 16.00 0.40 100% 50% Resume [runnable low prio] thread
27.73 24.00 28.00 0.40 74% 2% Suspend [runnable] thread
21.60 21.60 21.60 0.00 100% 100% Yield [only low prio] thread
15.65 15.20 16.00 0.39 56% 44% Suspend [runnable->not runnable]
51.39 51.20 52.00 0.29 76% 76% Kill [runnable] thread
27.66 27.20 28.80 0.41 54% 44% Destroy [dead] thread
68.93 64.80 69.60 0.35 72% 2% Destroy [runnable] thread
91.26 90.40 107.20 0.64 66% 32% Resume [high priority] thread
49.14 48.80 49.60 0.39 57% 57% Thread switch
2.20 1.60 2.40 0.30 75% 25% Scheduler lock
10.20 9.60 10.40 0.30 75% 25% Scheduler unlock [0 threads]
10.20 9.60 10.40 0.30 75% 25% Scheduler unlock [1 suspended]
10.20 9.60 10.40 0.30 75% 25% Scheduler unlock [many suspended]
10.20 9.60 10.40 0.30 75% 25% Scheduler unlock [many low prio]
6.85 6.40 7.20 0.39 56% 43% Init mutex
18.40 18.40 18.40 0.00 100% 100% Lock [unlocked] mutex
19.57 19.20 20.00 0.40 53% 53% Unlock [locked] mutex
16.55 16.00 16.80 0.34 68% 31% Trylock [unlocked] mutex
14.55 14.40 15.20 0.24 81% 81% Trylock [locked] mutex
3.55 3.20 4.00 0.39 56% 56% Destroy mutex
119.85 119.20 120.00 0.24 81% 18% Unlock/Lock mutex
12.85 12.80 13.60 0.09 93% 93% Create mbox
1.65 1.60 2.40 0.09 93% 93% Peek [empty] mbox
20.70 20.00 20.80 0.17 87% 12% Put [first] mbox
1.65 1.60 2.40 0.09 93% 93% Peek [1 msg] mbox
20.70 20.00 20.80 0.17 87% 12% Put [second] mbox
1.65 1.60 2.40 0.09 93% 93% Peek [2 msgs] mbox
20.85 20.80 21.60 0.09 93% 93% Get [first] mbox
20.85 20.80 21.60 0.09 93% 93% Get [second] mbox
19.90 19.20 20.00 0.17 87% 12% Tryput [first] mbox
17.60 17.60 17.60 0.00 100% 100% Peek item [non-empty] mbox
20.90 20.80 21.60 0.17 87% 87% Tryget [non-empty] mbox
16.80 16.80 16.80 0.00 100% 100% Peek item [empty] mbox
17.65 17.60 18.40 0.09 93% 93% Tryget [empty] mbox
1.85 1.60 2.40 0.34 68% 68% Waiting to get mbox
1.85 1.60 2.40 0.34 68% 68% Waiting to put mbox
19.40 19.20 20.00 0.30 75% 75% Delete mbox
65.05 64.80 65.60 0.34 68% 68% Put/Get mbox
7.05 6.40 7.20 0.24 81% 18% Init semaphore
15.55 15.20 16.00 0.39 56% 56% Post [0] semaphore
17.35 16.80 17.60 0.34 68% 31% Wait [1] semaphore
14.60 14.40 15.20 0.30 75% 75% Trywait [0] semaphore
14.20 13.60 14.40 0.30 75% 25% Trywait [1] semaphore
4.55 4.00 4.80 0.34 68% 31% Peek semaphore
3.75 3.20 4.00 0.34 68% 31% Destroy semaphore
70.85 70.40 71.20 0.39 56% 43% Post/Wait semaphore
6.05 5.60 6.40 0.39 56% 43% Create counter
2.25 1.60 2.40 0.24 81% 18% Get counter value
2.25 1.60 2.40 0.24 81% 18% Set counter value
19.70 19.20 20.00 0.37 62% 37% Tick counter
3.45 3.20 4.00 0.34 68% 68% Delete counter
9.05 8.80 9.60 0.34 68% 68% Create alarm
29.60 29.60 29.60 0.00 100% 100% Initialize alarm
2.15 1.60 2.40 0.34 68% 31% Disable alarm
29.35 28.80 29.60 0.34 68% 31% Enable alarm
5.10 4.80 5.60 0.37 62% 62% Delete alarm
23.20 23.20 23.20 0.00 100% 100% Tick counter [1 alarm]
138.00 137.60 138.40 0.40 100% 50% Tick counter [many alarms]
40.40 40.00 40.80 0.40 100% 50% Tick & fire counter [1 alarm]
704.25 697.60 804.00 12.47 93% 93% Tick & fire counters [>1 together]
155.20 155.20 155.20 0.00 100% 100% Tick & fire counters [>1 separately]
105.20 104.80 151.20 0.76 99% 94% Alarm latency [0 threads]
117.57 104.80 149.60 7.13 57% 25% Alarm latency [2 threads]
117.49 104.80 148.80 7.10 58% 26% Alarm latency [many threads]
192.59 177.60 316.00 1.93 98% 0% Alarm -> thread resume latency
22.10 21.60 24.00 0.00 Clock/interrupt latency
38.69 32.80 61.60 0.00 Clock DSR latency
297 276 316 (main stack: 752) Thread stack used (1120 total)
All done, main stack : stack used 752 size 2400
All done : Interrupt stack used 288 size 4096
All done : Idlethread stack used 272 size 2048
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