Difference between revisions of "Dahdi dummy"

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  provide good timing on systems lacking dahdi hardware.  I've attached strings
 
  provide good timing on systems lacking dahdi hardware.  I've attached strings
 
  of his module and the dummy one I built today, they are virtually identical.
 
  of his module and the dummy one I built today, they are virtually identical.
 
+
 
  Please test this if you have asl1.01 on a rpi.
 
  Please test this if you have asl1.01 on a rpi.
 
+
 
  Simply building this seems to fix any studering on asl 1.01 running on a RPi3:
 
  Simply building this seems to fix any studering on asl 1.01 running on a RPi3:
 
+
 
  bryan@StPeteRpt:~ $ sudo dahdi_test
 
  bryan@StPeteRpt:~ $ sudo dahdi_test
 
  [sudo] password for bryan:
 
  [sudo] password for bryan:
Line 17: Line 17:
 
  Best: 99.638% -- Worst: 98.445% -- Average: 99.390271%
 
  Best: 99.638% -- Worst: 98.445% -- Average: 99.390271%
 
  Cumulative Accuracy (not per pass): 99.967
 
  Cumulative Accuracy (not per pass): 99.967
 
+
 
  After insmod of dummy module.
 
  After insmod of dummy module.
 
+
 
  bryan@StPeteRpt:~ $ sudo dahdi_test
 
  bryan@StPeteRpt:~ $ sudo dahdi_test
 
  Opened pseudo dahdi interface, measuring accuracy...
 
  Opened pseudo dahdi interface, measuring accuracy...
Line 30: Line 30:
 
  Best: 99.992% -- Worst: 99.967% -- Average: 99.990443%
 
  Best: 99.992% -- Worst: 99.967% -- Average: 99.990443%
 
  Cumulative Accuracy (not per pass): 99.990
 
  Cumulative Accuracy (not per pass): 99.990
 
+
 
  Here it is on an intel server running a pci_radio card:
 
  Here it is on an intel server running a pci_radio card:
 
+
 
  root@Itchy:/home/bryan# dahdi_test
 
  root@Itchy:/home/bryan# dahdi_test
 
  Opened pseudo dahdi interface, measuring accuracy...
 
  Opened pseudo dahdi interface, measuring accuracy...
Line 43: Line 43:
 
  Best: 99.997% -- Worst: 99.954% -- Average: 99.989596%
 
  Best: 99.997% -- Worst: 99.954% -- Average: 99.989596%
 
  Cummulative Accuracy (not per pass): 99.992
 
  Cummulative Accuracy (not per pass): 99.992
 
+
 
  It's identical.
 
  It's identical.
 
+
 
  To build as root:
 
  To build as root:
 
  # cd /usr/src/asl-dahdi-linux-2.11.1/linux
 
  # cd /usr/src/asl-dahdi-linux-2.11.1/linux
Line 51: Line 51:
 
  # make
 
  # make
 
  # insmod /usr/src/asl-dahdi-linux-2.11.1/linux/drivers/dahdi/dahdi_dummy.ko
 
  # insmod /usr/src/asl-dahdi-linux-2.11.1/linux/drivers/dahdi/dahdi_dummy.ko
 
+
 
  # lsmod |grep dahdi
 
  # lsmod |grep dahdi
 
  dahdi_dummy            3432  0
 
  dahdi_dummy            3432  0
 
  dahdi                229561  35 dahdi_dummy
 
  dahdi                229561  35 dahdi_dummy
 
  crc_ccitt              1771  1 dahdi
 
  crc_ccitt              1771  1 dahdi
 
+
 
  you will need to do dahdi_genconf and then dahdi_cfg.  ASL1.01 is missing this
 
  you will need to do dahdi_genconf and then dahdi_cfg.  ASL1.01 is missing this
 
  in the service script that starts asterisk.  It needs to be added.
 
  in the service script that starts asterisk.  It needs to be added.
 
  Restart asterisk
 
  Restart asterisk
 
  #service asterisk restart
 
  #service asterisk restart
 
+
 
  # dahdi_scan
 
  # dahdi_scan
 
  [1]
 
  [1]
Line 74: Line 74:
 
  totchans=0
 
  totchans=0
 
  irq=0
 
  irq=0
 
+
 
  I'm not on the admin list, so unicast if you have a question.
 
  I'm not on the admin list, so unicast if you have a question.

Revision as of 21:52, 28 December 2019

It looks like John David has renamed dummy to hrtimer, dummy is designed to
provide good timing on systems lacking dahdi hardware.   I've attached strings
of his module and the dummy one I built today, they are virtually identical.

Please test this if you have asl1.01 on a rpi.

Simply building this seems to fix any studering on asl 1.01 running on a RPi3:

bryan@StPeteRpt:~ $ sudo dahdi_test
[sudo] password for bryan:
Opened pseudo dahdi interface, measuring accuracy...
99.614% 99.594% 99.608% 99.608% 98.476% 99.638% 99.599% 99.601%
99.600% 98.450% 99.602% 99.600% 99.601% 99.600% 98.445% 99.581%
99.621% 99.605% 99.597% 98.478% 99.630% 99.579% 99.626% 99.601%
98.478% 99.630% 99.602% 99.600% 99.601% 98.446% 99.601% 99.580% ^C
--- Results after 32 passes ---
Best: 99.638% -- Worst: 98.445% -- Average: 99.390271%
Cumulative Accuracy (not per pass): 99.967

After insmod of dummy module.

bryan@StPeteRpt:~ $ sudo dahdi_test
Opened pseudo dahdi interface, measuring accuracy...
99.990% 99.967% 99.991% 99.992% 99.991% 99.992% 99.991% 99.991%
99.991% 99.988% 99.992% 99.991% 99.991% 99.992% 99.991% 99.991%
99.991% 99.990% 99.992% 99.991% 99.991% 99.991% 99.991% 99.991%
99.992% 99.991% 99.991% 99.992% 99.991% 99.991% 99.991% 99.991%
99.991% 99.990% 99.991% 99.992% 99.991% 99.991% 99.991% 99.991% ^C
--- Results after 40 passes ---
Best: 99.992% -- Worst: 99.967% -- Average: 99.990443%
Cumulative Accuracy (not per pass): 99.990

Here it is on an intel server running a pci_radio card:

root@Itchy:/home/bryan# dahdi_test
Opened pseudo dahdi interface, measuring accuracy...
99.993% 99.986% 99.995% 99.992% 99.984% 99.971% 99.993% 99.990%
99.992% 99.992% 99.991% 99.990% 99.996% 99.990% 99.971% 99.954%
99.994% 99.992% 99.991% 99.995% 99.983% 99.993% 99.992% 99.992%
99.997% 99.990% 99.985% 99.995% 99.990% 99.996% 99.989% 99.993%
99.993% 99.989% 99.997% 99.989% 99.994% 99.996% 99.988% 99.993% ^C
--- Results after 40 passes ---
Best: 99.997% -- Worst: 99.954% -- Average: 99.989596%
Cummulative Accuracy (not per pass): 99.992

It's identical.

To build as root:
# cd /usr/src/asl-dahdi-linux-2.11.1/linux
# export MODULES_EXTRA='dahdi_dummy'
# make
# insmod /usr/src/asl-dahdi-linux-2.11.1/linux/drivers/dahdi/dahdi_dummy.ko

# lsmod |grep dahdi
dahdi_dummy             3432  0
dahdi                 229561  35 dahdi_dummy
crc_ccitt               1771  1 dahdi

you will need to do dahdi_genconf and then dahdi_cfg.  ASL1.01 is missing this
in the service script that starts asterisk.  It needs to be added.
Restart asterisk
#service asterisk restart

# dahdi_scan
[1]
active=yes
alarms=UNCONFIGURED
description=DAHDI_DUMMY/1 (source: HRtimer) 1
name=DAHDI_DUMMY/1
manufacturer=
devicetype=DAHDI Dummy Timing
location=
basechan=1
totchans=0
irq=0

I'm not on the admin list, so unicast if you have a question.