Linux Mint process ID for FreeDV

[C Root]

I'm trying to experiment with various ways to get better QSO intelligibility with FreeDV. At the moment conversations fade in and out even when the SNR is strong )+10, +15, etc.)  

One idea was that my CPU is underpowered for running FreeDV, and so the decoding suffers. TO check this, I want to run the Linux "nice" command to raise the FreeeDV process priority.  But I can't seem to find the actual name of the process FreeDV uses.   I can run htop and see a process called " /tmp/.mount FreeDV00AciA/usr/bin/freedv".  However, when entering that (or reasonable parts of it like /usr/bin/freedv) the nice command doesn't find the file or process. 

What process name can I use (ideally a persistent pro ess name that will be the same during each instantiation)?

[Mooneer Salem]

If you have rtkit installed on your system (most distros do include it), FreeDV should already be requesting that the audio processing threads be bumped up to the highest non-real time priority available. You can confirm this by running "top -H" and looking for "FDV txThread" and "FDV rxThread". However, to answer your question, I wonder if trying "FDV GUI" (the name of the main thread in the app) will work for the nice command.

-Mooneer K6AQ

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[C Root]

htop shows freedDV has low-ranked priorities -- 5 and 20 (not sure why there are two processes).  -20 is the top priority. 
Also, when I try "renice -n -20 'FDV GUI'" I get "renice: bad process ID value: FDV GUI".  Same with double quotes or no quotes. 

[Mooneer Salem]

Not sure about the process name but a nice level of -15 does indicate that the system properly raised the priority of the audio threads. For example, I took this screenshot just after pushing Start:

(Also, for me, pushing F4 to filter on "freedv" seems to hide everything except stuff with FreeDV in the name.)

-Mooneer K6AQ

To view this discussion visit https://groups.google.com/d/msgid/digitalvoice/d29602ae-8ee5-4344-af61-cbbcf8a755a6n%40googlegroups.com.