NAME¶

rt-migrate-test - real-time task migration program

SYNOPSIS¶

rt-migrate-test [-ceh] [-p prio] [-r time] [-s time] [-m time] [-l loops] [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

-D, --duration=TIME

Specify a length for the test run.
Append 'm', 'h', or 'd' to specify minutes, hours or days.

-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)

-m, --maxerr=time

Max allowed error (microsecs)

-l --loops=loops

Number of iterations to run (50)

-e

Use equal prio for #CPU-1 tasks (requires > 2 CPUS)

-c, --check

Stop if lower prio task is quicker than higher (off)

-h, --help

Display usage

[nr-tasks]

number of tasks to run (number of cpus + 1)

AUTHOR¶

rt-migrate-test was written by Steven Rostedt <srostedt@redhat.com>

This manual page was written by John Kacur <jkacur@redhat.com>