[mythtv-users] "Nice" recommendations

[Jan Ceuleers]

On 31/10/17 15:19, Nick Morrott wrote:
> On 31 October 2017 at 14:14, Ozzy Lash <ozzy.lash at gmail.com> wrote:
> 
>> Isn't a negative nice value giving the process a HIGHER priority?  I think
>> you mean "nice 19"  correct?
> 
> Correct. A lower nice value gives the process a higher priority.
> 
> +ve (1 - 19): lower priority
> 0: default priority
> -ve (-1 - -20): high priority

Although this is true you need to experiment with your implementation of
"nice" as to how to feed it the desired niceness value.

Start by noting that nice without parameters returns the current
niceness value.

Then experiment with different syntactic options and values:

root at hobbiton:~# nice nice
10
root at hobbiton:~# nice -19 nice
19
root at hobbiton:~# nice --19 nice
-19
root at hobbiton:~# nice -n 19 nice
19

So as you can see, if you feed it a niceness value it needs to be either
preceded by a dash or by "-n ". If you want to specify a negative value
then it needs two dashes (or "-n -").

HTH, Jan