[Skimmertalk] Trying to optimize CPU while skimming - More FT8 questions

W3OA w3oa at roadrunner.com
Thu Jul 11 20:10:55 EDT 2019


Hi Andy -

Check your setting on the WSJT-X "Save" menu.  If it's not "None" WSJT-X 
will be saving a lot of audio files.

73 - Dick, W3OA


Subject: [Skimmertalk] Trying to optimize CPU while skimming - More FT8 
questions

From: Andy KU7T <ku7t at ku7t.org>
Date: 7/11/2019, 6:36 PM
To: 'SkimmerTalk Reflector' <skimmertalk at contesting.com>

My computer is running pretty heavy and I was taking a closer look in 
order to optimize the resources needed by skimming on 8 bands for FT8 
and 16 on CW. A couple of things that I do not understand:

Why are there 1 GB of data collected in WAV files by the WSJT-X 
instances (see screen shot at https://photos.app.goo.gl/8tvXLn5JSWEoizWm8)?


And each FT8 band causes 3 processes to run:
Wsjt-X.exe                     1 - 2 % CPU
jt9.exe                            1 % with spike at 20%, presumably 
when decoding happens?
cwsl_ssbwave.exe       1 - 3 % CPU

Is that adequate? Seems pretty power hungry. Is there anything that can 
be optimized?  Remember, I am running CW Skimmer as well, which also 
need 10 - 20 % of CPU.


I am running the computer with the Performance power profile.
Would it help to optimize for background services or foreground apps?

Thanks
Andy
KU7T


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