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1107d4183c
Added documentation for `getprime` example as part of #11081. Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
30 lines
1.1 KiB
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30 lines
1.1 KiB
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======================
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``getprime`` benchmark
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======================
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This application is used to benchmark processing time using multithreading. Each
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thread that is spawned will find all prime numbers in the range of 1 to 10,000.
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To use ``getprime``, pass the number of threads you'd like to run as the only
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argument. After the threads finish processing, the duration of the test is
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printed to the console.
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.. code:: console
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nsh> getprime 3
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Set thread priority to 10
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Set thread policy to SCHED_RR
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Start thread #0
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Start thread #1
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Start thread #2
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thread #0 started, looking for primes < 10000, doing 10 run(s)
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thread #1 started, looking for primes < 10000, doing 10 run(s)
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thread #2 started, looking for primes < 10000, doing 10 run(s)
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thread #0 finished, found 1230 primes, last one was 9973
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thread #1 finished, found 1230 primes, last one was 9973
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thread #2 finished, found 1230 primes, last one was 9973
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Done
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getprime took 89040 msec
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This program can be used to see performance differences between boards,
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single-core vs SMP, thread scheduling settings, etc.
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