# SPDX-License-Identifier: GPL-2.0-only
NAME
cyclicdeadline - This program is used to test the deadline scheduler (SCHED_DEADLINE) using a cyclictest style program
SYNOPSIS
cyclicdeadline [-a [CPUSET]] [-D TIME] [-h] [-i INTV] [--json FILENAME] [-s STEP] [-t NUM] [-q]
DESCRIPTION
cyclicdeadline is a cyclictest style program for testing the deadline scheduler
OPTIONS
- -a --affinity [CPUSET]
-
Comma / hypen separated list of CPUs to run deadline tasks on
- -D --duration TIME
-
Specify a length for the test to run Append 'm', 'h', or 'd' to specify minutes, hours, or days
- -h --help
-
Show this help menu
- -i --interval INTV
-
The shortest deadline for the tasks in us. (default 1000us)
- --json=FILENAME
-
Write final results into FILENAME, JSON formatted.
- -s --step STEP
-
The amount to increase the deadline for each task in us. (default 500us)
- -t --threads NUM
-
The number of threads to run as deadline (default 1)
- -q, --quiet
-
Print a summary only on exit. Useful for automated tests, where only the summary output needs to be captured.
- -b, --breaktrace=USEC
-
Send break trace command when latency > USEC
- --tracemark
-
write a trace mark when -b latency is exceeded.
AUTHOR
cyclicdeadline was written by Steven Rostedt <[email protected]>
This manual page was written by John Kacur <[email protected]>