| RT-MIGRATE-TEST(8) | System Manager's Manual | RT-MIGRATE-TEST(8) |
NAME
rt-migrate-test - real-time task migration program
SYNOPSIS
rt-migrate-test [-c|--check] [-D|--duration TIME] [-e|--equal] [-h|--help] [--json FILENAME] [-l|--loops LOOPS] [-m|--maxerr TIME] [-p|--prio PRIO] [-r|--run-time TIME] [-s|--sleep-time TIME] [NR_TASKS]
DESCRIPTION
Test real-time multiprocessor scheduling of tasks to ensure the highest priority tasks are running on all available CPUs
OPTIONS
This program follows the usual GNU command line syntax, with long
options starting with two dashes ('--').
- In the summary of options, a value in brackets (), indicates a default value
-
- -c, --check
- Stop if lower prio task is quicker than higher (off)
- -D, --duration=TIME
- Specify a length for the test run.
Append 'm', 'h', or 'd' to specify minutes, hours or days. - -e, --equal
- Use equal prio for #CPU-1 tasks (requires > 2 CPUS)
- -h, --help
- Display usage
- --json=FILENAME
- Write final results into FILENAME, JSON formatted.
- -l --loops=LOOPS
- Number of iterations to run (50)
- -m, --maxerr=TIME
- Max allowed error (microsecs)
- -p, --prio=PRIO
- base priority to start RT tasks with (2)
- -r, --run-time=TIME
- Run time (ms) to busy loop the threads (20)
- -s, --sleep-time=TIME
- Sleep time (ms) between intervals (100)
- [NR_TASKS]
- number of tasks to run (number of cpus + 1)
AUTHOR
rt-migrate-test was written by Steven Rostedt <srostedt@redhat.com>
| September 18, 2020 |