[asterisk-users] Terrible dahdi_test results

[Mike Leddy]

Thanks Russ,

I blacklisted wcopenpci, and i noticed an improvement:

# dahdi_test 
Opened pseudo dahdi interface, measuring accuracy...
91.973% 96.242% 94.423% 77.932% 97.654% 87.114% 68.750% 87.417% 
75.768% 95.693% 93.086% 77.936% 87.283% 92.996% 77.942% 77.926% 
77.943% 89.545% 93.949% 87.032% 91.939% 71.877% 90.648% 88.163% 
77.173% 97.651% 77.932% 77.942% 77.929% 76.548% 80.922% 90.292% 
81.977% 89.354% 79.203% 76.665% 77.935% 91.000% 68.182% 95.018%
--- Results after 40 passes ---
Best: 97.654% -- Worst: 68.182% -- Average: 84.673880%
Cummulative Accuracy (not per pass): 86.629

But on examination the /etc/init.d/dahdi start was only loading 
the dahdi module. 

# lsmod | egrep 'wc|dahdi'
dahdi                 192295  0 
crc_ccitt              12347  1 dahdi

After a modprobe wcte11xp the situation is:

# lsmod | egrep 'wc|dahdi'
dahdi_echocan_oslec    12578  30 
echo                   12652  1 dahdi_echocan_oslec
wcte11xp               21535  0 
dahdi                 192295  2 wcte11xp,dahdi_echocan_oslec
crc_ccitt              12347  1 dahdi

The test returns to as it was before:

# dahdi_test 
Opened pseudo dahdi interface, measuring accuracy...
89.100% 89.212% 88.871% 89.078% 89.286% 89.559% 89.358% 89.423% 
89.184% 89.083% 88.931% 89.070% 89.110% 88.818% 88.573% 89.091% 
89.006% 88.978% 89.157% 89.069% 89.112% 88.890% 89.374% 88.900% 
89.042% 89.043% 88.946% 88.786% 88.865% 89.259% 88.951% 88.763% 
88.944% 89.123% 88.956% 88.976% 89.044% 89.040% 88.970% 89.148%
--- Results after 40 passes ---
Best: 89.559% -- Worst: 88.573% -- Average: 89.052215%
Cummulative Accuracy (not per pass): 89.052

Still experimenting..... 

Best regards,

Mike


On Mon, 2014-05-12 at 17:23 -0500, Russ Meyerriecks wrote:
> On Mon, May 12, 2014 at 4:57 PM, Mike Leddy <mike at loop.com.br> wrote:
>         [   39.223031] wcopenpci: Module loaded
>         [   39.751770] wcte1xxp: Setting yellow alarm
>         
>         # dahdi_hardware
>         pci:0000:06:00.0     wcte11xp+    e159:0001 Digium Wildcard
>         TE110P T1/E1 Board
> 
> 
> Mike,
>   This stuff predates my time on this project, but it looks like
> wcopenpci and wcte1xxp might be conflicting on your system because
> they register against the same hardware. I might try blacklisting the
> wcopenpci driver in /etc/modprobe.d/dahdi.blacklist.conf and rebooting
> or reloading dahdi.
> 
> 
> -- 
> Russ Meyerriecks
> Digium, Inc. | Linux Kernel Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> direct: +1 256-428-6025
> Check us out at: www.digium.com & www.asterisk.org