Re: [PATCH] bitbake.conf: set BB_NICE_LEVEL to lower task prios

[Jan Kiszka <jan.kiszka@siemens.com>]

On 22.08.19 14:03, [ext] Henning Schild wrote:
> Am Thu, 22 Aug 2019 13:24:11 +0200
> schrieb Baurzhan Ismagulov <ibr@radix50.net>:
> 
>> On Thu, Aug 22, 2019 at 01:15:21PM +0200, Henning Schild wrote:
>>>>> +BB_NICE_LEVEL ?= "10"
>>>>
>>>> Not set by OE by default. Isn't that something for local tuning?
>>>
>>> I know. But we either carry it in all kas files or centrally in the
>>> bitbake.conf. This could also be a default for kas local.conf
>>> creation ... Just wanted to propose it and hear the feedback.
>>
>> I also think kas could be a better candidate. Performance is the
>> last, but important goal of Isar, why reduce it by default for new
>> users if more experienced users can easily do it locally.
> 
> If you are not doing anything else on your machine the niceness will
> not decrease the performance.

BTW, I never experience major issues with running full load like this in 
parallel to editors or browsers. Of course, if you have a time sensitive 
application running, multimedia etc., you feel the difference. Then I'm usually 
just doing "docker update <build_container> --cpus <maxcpus-X>". And I suspect 
"--cpu-shares <share>" will do similar things as this nice level, just never tried.

Jan

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