zttest(8)
NAME
zttest -- Test if the zaptel timer provides timely response
SYNOPSIS
zttest [ -v ]
DESCRIPTION
zttest zttest runs a timing test in a loop and prints the result of
each loop. The test is as follows:
It reads 8192 bytes from the zaptel timer device (/dev/zap/pseudo).
This should take exactly 8000 ms . It uses calls to gettimeofday(2)
before and after that read to check that indeed exactly 8000ms have
passed.
Values of 100% and 99.99% Are normally considered a definite pass.
Values of 99.98% and 99.97% are probably OK as well.
OPTIONS
- -v
- Be more verbose: print one line per test.
- -c count
- Run for count times instead of running forever.
FILES
/dev/zap/pseudo
The device file used to access the zaptel timer.
SEE ALSO
zttool(8), ztmonitor(8), ztspeed(8), ztcfg(8), asterisk(8). gettimeofday(2)
AUTHOR
This manual page was written by Tzafrir Cohen <tzafrir.cohen@xorcom.com> Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU General Public License, Version 2
any later version published by the Free Software Foundation.
- On Debian systems, the complete text of the GNU General Public License
can be found in /usr/share/common-licenses/GPL.