.TH dahdi_test 8 "2005-06-25" 
.SH "NAME" 
dahdi_test \(em Test if the DAHDI timer provides timely response
.SH "SYNOPSIS" 
.B dahdi_test 
.I [ \-v ]

.SH DESCRIPTION 
.B dahdi_test
dahdi_test 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 DAHDI timer device (\fI/dev/dahdi/pseudo\fR). 
This should take exactly 8000 ms . It uses calls to
.I 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 
.I pass.
Values of 99.98% and 99.97% are probably OK as well.

.SH OPTIONS
.B \-v
.RS
Be more verbose: print one line per test.
.RE

.B \-c 
.I count
.RS
Run for 
.I count
times instead of running forever.
.RE

.SH FILES
.B /dev/dahdi/pseudo
.RS
.RE
The device file used to access the DAHDI timer.

.SH SEE ALSO 
dahdi_tool(8), dahdi_cfg(8), asterisk(8). gettimeofday(2)

.SH 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.