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Does docker consume CPU the way VMs do?

Is it normal for compiz to consume 40% of my CPU with no other programs running?Does Ubuntu Touch consume less power than Android?Does it matter what's the base OS is when packing a docker image?Error “Couldn't find hvm kernel” during KVM Guest install of Ubuntu Server 16.04“Cannot connect to the Docker daemon” problem in Docker Ubuntu Containerdocker snap: Cannot connect to the Docker daemon. Is the docker daemon running on this host?How to install the fastlane using dockerCannot connect to the Docker daemon in Ubuntu 17.10does linux docker work better on particular file type?For Docker daemon started with sub-id, can docker-group's member escape the limitation in some way?

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

Apart from looking at docker stats, I want to know how docker consumes physical CPU or where will it be classified between CPU User, CPU System and CPU Guest, etc, stats?

I am collecting metrics using netdata. I am looking at different types of workloads; this means just some prepackaged code that may contain a docker image because that is where some software is installed or databases that other parts of this workload or code in question depend on. Nedata returns a lot of metrics, for example,at the system level for CPU: you will have the following:

netdata.system.cpu.guest
netdata.system.cpu.guest_nice
netdata.system.cpu.idle
netdata.system.cpu.iowait
netdata.system.cpu.irq
netdata.system.cpu.nice
netdata.system.cpu.softirq
netdata.system.cpu.steal
netdata.system.cpu.system
netdata.system.cpu.user

If I am dealing with a VM, I know that the guest operating system cpu ticks values would be recorded as netdata.system.cpu.guest; I am trying to know where those for docker images would be recorded.

I have looked at docker stat and read over articles on the internet but I can't seem to find where these cpu values would be recorded.

This is important to me because I am trying to characterize these workloads, and I want to know things I shouldn't bother looking too much at with respect to characterization if the workloads do not have a docker image

virtualization performance docker benchmarks telemetry

share|improve this question

edited 8 hours ago

Byte Commander♦

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add a comment | 

3

Apart from looking at docker stats, I want to know how docker consumes physical CPU or where will it be classified between CPU User, CPU System and CPU Guest, etc, stats?

I am collecting metrics using netdata. I am looking at different types of workloads; this means just some prepackaged code that may contain a docker image because that is where some software is installed or databases that other parts of this workload or code in question depend on. Nedata returns a lot of metrics, for example,at the system level for CPU: you will have the following:

netdata.system.cpu.guest
netdata.system.cpu.guest_nice
netdata.system.cpu.idle
netdata.system.cpu.iowait
netdata.system.cpu.irq
netdata.system.cpu.nice
netdata.system.cpu.softirq
netdata.system.cpu.steal
netdata.system.cpu.system
netdata.system.cpu.user

If I am dealing with a VM, I know that the guest operating system cpu ticks values would be recorded as netdata.system.cpu.guest; I am trying to know where those for docker images would be recorded.

I have looked at docker stat and read over articles on the internet but I can't seem to find where these cpu values would be recorded.

This is important to me because I am trying to characterize these workloads, and I want to know things I shouldn't bother looking too much at with respect to characterization if the workloads do not have a docker image

virtualization performance docker benchmarks telemetry

share|improve this question

edited 8 hours ago

Byte Commander♦

71.1k2727 gold badges193193 silver badges326326 bronze badges

asked 8 hours ago

MoverMover

1822 bronze badges

New contributor

Mover is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

Apart from looking at docker stats, I want to know how docker consumes physical CPU or where will it be classified between CPU User, CPU System and CPU Guest, etc, stats?

I am collecting metrics using netdata. I am looking at different types of workloads; this means just some prepackaged code that may contain a docker image because that is where some software is installed or databases that other parts of this workload or code in question depend on. Nedata returns a lot of metrics, for example,at the system level for CPU: you will have the following:

netdata.system.cpu.guest
netdata.system.cpu.guest_nice
netdata.system.cpu.idle
netdata.system.cpu.iowait
netdata.system.cpu.irq
netdata.system.cpu.nice
netdata.system.cpu.softirq
netdata.system.cpu.steal
netdata.system.cpu.system
netdata.system.cpu.user

If I am dealing with a VM, I know that the guest operating system cpu ticks values would be recorded as netdata.system.cpu.guest; I am trying to know where those for docker images would be recorded.

I have looked at docker stat and read over articles on the internet but I can't seem to find where these cpu values would be recorded.

This is important to me because I am trying to characterize these workloads, and I want to know things I shouldn't bother looking too much at with respect to characterization if the workloads do not have a docker image

virtualization performance docker benchmarks telemetry

share|improve this question

edited 8 hours ago

Byte Commander♦

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asked 8 hours ago

MoverMover

1822 bronze badges

New contributor

Mover is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

netdata.system.cpu.guest
netdata.system.cpu.guest_nice
netdata.system.cpu.idle
netdata.system.cpu.iowait
netdata.system.cpu.irq
netdata.system.cpu.nice
netdata.system.cpu.softirq
netdata.system.cpu.steal
netdata.system.cpu.system
netdata.system.cpu.user

share|improve this question

edited 8 hours ago

Byte Commander♦

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asked 8 hours ago

MoverMover

1822 bronze badges

New contributor

Mover is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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share|improve this question

edited 8 hours ago

Byte Commander♦

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asked 8 hours ago

MoverMover

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Mover is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 8 hours ago

Byte Commander♦

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edited 8 hours ago

Byte Commander♦

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asked 8 hours ago

MoverMover

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asked 8 hours ago

MoverMover

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1 Answer
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4

Containers are no VMs. Nothing is virtualized, it all just runs as isolated processes on the host. Even the kernel is shared.

So the kind of CPU utilization you can observe from a container process is just the same as from a host process.

share|improve this answer

edited 6 hours ago

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Just a quick clarification, is load the same as utilization in the context of your answer?
  
  – Mover
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yeah, I'm meaning the same. Not sure if using either word 100% technically correct, but close enough, I think.
  
  – Byte Commander♦
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my understanding, load is the number of processes awaiting service at a given point in time while utilisation is the percentage of time the CPU is active running processes. Agree?
  
  – Mover
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sounds reasonable, probably my wording was not optimal then.
  
  – Byte Commander♦
  6 hours ago
  

  
  
  
  

add a comment | 

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4

Containers are no VMs. Nothing is virtualized, it all just runs as isolated processes on the host. Even the kernel is shared.

So the kind of CPU utilization you can observe from a container process is just the same as from a host process.

share|improve this answer

edited 6 hours ago

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Just a quick clarification, is load the same as utilization in the context of your answer?
  
  – Mover
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yeah, I'm meaning the same. Not sure if using either word 100% technically correct, but close enough, I think.
  
  – Byte Commander♦
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my understanding, load is the number of processes awaiting service at a given point in time while utilisation is the percentage of time the CPU is active running processes. Agree?
  
  – Mover
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sounds reasonable, probably my wording was not optimal then.
  
  – Byte Commander♦
  6 hours ago
  

  
  
  
  

add a comment | 

4

Containers are no VMs. Nothing is virtualized, it all just runs as isolated processes on the host. Even the kernel is shared.

So the kind of CPU utilization you can observe from a container process is just the same as from a host process.

share|improve this answer

edited 6 hours ago

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Just a quick clarification, is load the same as utilization in the context of your answer?
  
  – Mover
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yeah, I'm meaning the same. Not sure if using either word 100% technically correct, but close enough, I think.
  
  – Byte Commander♦
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my understanding, load is the number of processes awaiting service at a given point in time while utilisation is the percentage of time the CPU is active running processes. Agree?
  
  – Mover
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sounds reasonable, probably my wording was not optimal then.
  
  – Byte Commander♦
  6 hours ago
  

  
  
  
  

add a comment | 

Containers are no VMs. Nothing is virtualized, it all just runs as isolated processes on the host. Even the kernel is shared.

So the kind of CPU utilization you can observe from a container process is just the same as from a host process.

share|improve this answer

edited 6 hours ago

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

share|improve this answer

edited 6 hours ago

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges

answered 8 hours ago

Byte Commander♦Byte Commander

71.1k2727 gold badges193193 silver badges326326 bronze badges