Docker Hardware Allocation

[Ryan2207]

Hello

 

Is it possible to set allocated hardware resources to a docker container, extra cores ram etc or will it just take the resources it needs ?

 

Kind Regards

 

Ryan

[lionelhutz]

There is a sticky about pinning a specific core to a docker,  but I think that is about it. They just use the ram they need.

[Squid]

Hello

 

Is it possible to set allocated hardware resources to a docker container, extra cores ram etc or will it just take the resources it needs ?

 

Kind Regards

 

Ryan

You can limit everything.  Cores, memory, etc.

 

To limit cores add to extra parameters:

 

--cpuset-cpus=0

 

to limit memory

 

--memory=4G

 

Additionally you can prioritize one docker app's cpu resources over another.  Google docker run for a complete breakdown of everything possible.

 

Personally, I think its in everyone's best interests to limit the resources of every app with the exception of Plex

[testdasi]

Additionally you can prioritize one docker app's cpu resources over another.  Google docker run for a complete breakdown of everything possible.

I read the docker run reference but still can't figure out how to priority one docker cpu over another. Please can you share how.

 

Is it the --cpu-shares?

 

Just based on the information provided on the reference, I set Handbrake to 128, Plex to 8192 and the rest to 1024.

[Squid]

Additionally you can prioritize one docker app's cpu resources over another.  Google docker run for a complete breakdown of everything possible.

I read the docker run reference but still can't figure out how to priority one docker cpu over another. Please can you share how.

 

Is it the --cpu-shares?

 

Just based on the information provided on the reference, I set Handbrake to 128, Plex to 8192 and the rest to 1024.

Iirc everything is based upon 1024.  Or setting 2 containers to 512 will each allow them to max out at 50% if they both want to run full bore.  If only one wants to run full bore it will max out at 100%  there is no way to prioritize or set a max cpu usage for a container. 

 

Things get more complicated using 3 or more containers but the concept is the same

 

Sent from my LG-D852 using Tapatalk

 

 

[Squid]

Time permitting I'll try and bang together a post explaining exactly how everything is supposed to work.

[rutherford]

by the way: extra parameters are under Docker settings for the specific Docker. Change Basic View to Advanced View toggle in top right.