getprime
benchmark
This application is used to benchmark processing time using multithreading. Each thread that is spawned will find all prime numbers in the range of 1 to 10,000.
To use getprime
, pass the number of threads you’d like to run as the only
argument. After the threads finish processing, the duration of the test is
printed to the console.
nsh> getprime 3
Set thread priority to 10
Set thread policy to SCHED_RR
Start thread #0
Start thread #1
Start thread #2
thread #0 started, looking for primes < 10000, doing 10 run(s)
thread #1 started, looking for primes < 10000, doing 10 run(s)
thread #2 started, looking for primes < 10000, doing 10 run(s)
thread #0 finished, found 1230 primes, last one was 9973
thread #1 finished, found 1230 primes, last one was 9973
thread #2 finished, found 1230 primes, last one was 9973
Done
getprime took 89040 msec
This program can be used to see performance differences between boards, single-core vs SMP, thread scheduling settings, etc.