1RT-MIGRATE-TEST(8) System Manager's Manual RT-MIGRATE-TEST(8)
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6 rt-migrate-test - real-time task migration program
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9 rt-migrate-test [-c|--check] [-D|--duration TIME] [-e|--equal]
10 [-h|--help] [--json FILENAME] [-l|--loops LOOPS] [-m|--maxerr TIME]
11 [-p|--prio PRIO] [-r|--run-time TIME] [-s|--sleep-time TIME] [NR_TASKS]
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14 Test real-time multiprocessor scheduling of tasks to ensure the highest
15 priority tasks are running on all available CPUs
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18 This program follows the usual GNU command line syntax, with long op‐
19 tions starting with two dashes ('--').
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21 In the summary of options, a value in brackets (), indicates a default
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24 -c, --check
25 Stop if lower prio task is quicker than higher (off)
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27 -D, --duration=TIME
28 Specify a length for the test run.
29 Append 'm', 'h', or 'd' to specify minutes, hours or days.
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31 -e, --equal
32 Use equal prio for #CPU-1 tasks (requires > 2 CPUS)
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34 -h, --help
35 Display usage
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37 --json=FILENAME
38 Write final results into FILENAME, JSON formatted.
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40 -l --loops=LOOPS
41 Number of iterations to run (50)
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43 -m, --maxerr=TIME
44 Max allowed error (microsecs)
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46 -p, --prio=PRIO
47 base priority to start RT tasks with (2)
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49 -r, --run-time=TIME
50 Run time (ms) to busy loop the threads (20)
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52 -s, --sleep-time=TIME
53 Sleep time (ms) between intervals (100)
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55 [NR_TASKS]
56 number of tasks to run (number of cpus + 1)
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59 rt-migrate-test was written by Steven Rostedt <srostedt@redhat.com>
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61 This manual page was written by John Kacur <jkacur@redhat.com>
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65 September 18, 2020 RT-MIGRATE-TEST(8)