[App_rpt-users] dadhi_test results.

[Pierre Martel]

So you are telling me that since I had a few small result below 99.95% there will be problem?


De : David McGough
Envoyé le :22 juin 2018 13:28
À : Users of Asterisk app_rpt
Objet :Re: [App_rpt-users] dadhi_test results.


If your dahdi_test results ever fall below about 99.95, you're going to
get some "call quality" issues. Stuttering, pops, clicks, bad timer
results, audio delays, etc. This is most significant on heavily loaded
hubs and when you're transcoding between different CODECs. How frequently
you see problems depends on how bad the timing jitter is.

Google: "bad dahdi_test"  ....This has been discussed forever about
Asterisk PBXs. You must remember that the way AllStar uses Asterisk,
it's effectively an Asterisk conference call using the conf/bridge
software in dahdi.

These numbers MUST be spot-on if you want GREAT results. There is no way 
around this constraint in the current software.


73, David KB4FXC





On Fri, 22 Jun 2018, Mike wrote:

> Looks good Pierre,
> 
> What is your hardware arrangement cpu&speed/mem
> 
> ...mike/kb8jnm
> 
> 
> On 6/22/2018 6:52 AM, Pierre Martel wrote:
> > did a test on a vps I have on linode. was wondering if this sounds 
> > good for you
> >
> > :[/usr/sbin]: sudo ./dahdi_test
> > Opened pseudo dahdi interface, measuring accuracy...
> > 99.997% 99.993% 99.997% 99.997% 99.984% 99.998% 99.991% 99.607%
> > 99.993% 99.603% 99.608% 99.990% 99.613% 99.995% 99.998% 99.613%
> > 99.992% 99.997% 99.988% 99.995% 99.999% 99.991% 99.985% 99.603%
> > 99.996% 99.995% 99.998% 99.999% 99.995% 99.995% 99.612% 99.999%
> > 99.893% 99.643% 99.525% 99.998% 99.994% 99.594% 99.999% 99.991%
> > 99.998% 99.999% 99.615% 99.995% 99.996% 99.998% 99.996% 99.994%
> > 99.995% 99.997% 99.980% 99.993% 99.999% 99.984% 99.999% 99.993%
> > 99.998% 99.992% 99.985% 99.997% 99.999% 99.603% 100.000% 99.996%
> > 99.996% 99.611% 99.998% 99.994% 99.994% 99.995% 99.996% 99.994%
> > 99.605% 99.998% 99.999% 99.994% 99.997% 99.991% 99.997% 99.992%
> > 99.996% 99.995% 99.999% 99.997% 99.980% 99.996% 99.999% 99.994%
> > 99.996% 99.995% 99.996% 99.604% 99.998% 99.993% ^C
> > --- Results after 94 passes ---
> > Best: 100.000% -- Worst: 99.525% -- Average: 99.931304%
> > Cumulative Accuracy (not per pass): 100.000
> >
> > this was while connected to another  2 node and some activity on the 
> > repeaters.
> >
> > IS this a keeper? I am also planning to use that vps as an xlxD server 
> > and running an ambed server at home (got 3 trancoding channel 
> > possibility here.)
> >
> > If it is possible to link from allstar dstar and dmr that would make a 
> > nice bridge between all those mode.. I just need a second pair of 
> > dongle to also get fusion.
> >
> > If anyone have experience in such thing let me know. I will need some 
> > hint. Dont need to be taken by the hand...
> >
> >
> >
> > _______________________________________________
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