POV-Ray : Newsgroups : povray.unix : not nice(1) : Re: not nice(1) Server Time
12 Aug 2022 01:52:25 EDT (-0400)
  Re: not nice(1)  
From: dick balaska
Date: 31 Dec 2017 00:39:54
Message: <5a48782a$1@news.povray.org>
On 12/30/2017 10:04 PM, clipka wrote:

 > CPU power ffmpeg makes no use of for any of the above reasons is free
 > for the taking.

Remove ffmpeg from the equation. If povray isn't running, ffmpeg uses 
800%. It was an example.
The place I really see this is: povrayws, which runs at user priority 
under qtpov, gets slightly *less* horsepower than povray, which is 
running at nice -19 under the renderfarm. povrayws should be using close 
to 800%, not 350ish%, while povray should drop to near 0%.

 > (Also, with a niceness of 19 rather than the maximum of 20, the
 > scheduler would still give POV-Ray a bit of CPU time even if ffmpeg
 > would be able to use it all up.)

Sorry. idiomatic.  "nice -19" is the shell command to send a process to 
the floor.  This sets nice to +19, which is the minimum (or the maximum).
"Niceness values range from -20 (most  favorable  to the process) to 19 
(least favorable to the process)."

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