signaltest - Man Page

signal roundtrip test software


signaltest [ -b USEC ] [ -l LOOPS ] [ -p PRIO] [ -q ] [ -t NUM ] [ -m ] [ -v ] [ --help ]


These programs follow the usual GNU command line syntax, with long options starting with two dashes ('--').

-b,  --breaktrace=USEC

Send break trace command when latency > USEC

-D,  --duration=TIME

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

-l,  --loops=LOOPS

Number of loops: default=0 (endless)

-p,  --priority=PRIO

Priority of highest priority thread

-q,  --quiet

print a summary only on exit

-t,  --threads=NUM

number of threads: default=2

-m,  --mlockall

lock current and future memory allocations

-v,  --verbose

output values on stdout for statistics
format: n:c:v n=tasknum c=count v=value in us


display usage information


signaltest was written by Thomas Gleixner <>.

This manual page was originally written by
John Kacur <>

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.  This file is offered as-is, without any warranty.


October 1, 2015