|dahdi_test(8)||System Manager's Manual||dahdi_test(8)|
dahdi_test — Test if the DAHDI timer provides timely response
dahdi_test [ -v ]
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 (/dev/dahdi/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.
/dev/dahdi/pseudoThe device file used to access the DAHDI timer.
This manual page was written by Tzafrir Cohen <email@example.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.