Docker child processes do not inherit niceness of daemon
I often run a lot of docker containers, which sometimes cause my system to freeze momentarily. To prevent this, I made a service that automatically sets the niceness of docker-containerd a bit higher. I thought that this would cause all new child processes to inherit this niceness, but when I start a new container all processes have a niceness of 0
Here is a screenshot of htop
I'm not sure if this is caused by howDocker works internally or something else (cgroups perhaps?).
Does anybody have an idea how I could automatically give all containers-processes a higher niceness? I don´t want to use the docker-specific features like --cpu-period, since that means I'll have to specify these arguments each time that I create a new container.
docker nice cgroup
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
add a comment |
I often run a lot of docker containers, which sometimes cause my system to freeze momentarily. To prevent this, I made a service that automatically sets the niceness of docker-containerd a bit higher. I thought that this would cause all new child processes to inherit this niceness, but when I start a new container all processes have a niceness of 0
Here is a screenshot of htop
I'm not sure if this is caused by howDocker works internally or something else (cgroups perhaps?).
Does anybody have an idea how I could automatically give all containers-processes a higher niceness? I don´t want to use the docker-specific features like --cpu-period, since that means I'll have to specify these arguments each time that I create a new container.
docker nice cgroup
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
add a comment |
I often run a lot of docker containers, which sometimes cause my system to freeze momentarily. To prevent this, I made a service that automatically sets the niceness of docker-containerd a bit higher. I thought that this would cause all new child processes to inherit this niceness, but when I start a new container all processes have a niceness of 0
Here is a screenshot of htop
I'm not sure if this is caused by howDocker works internally or something else (cgroups perhaps?).
Does anybody have an idea how I could automatically give all containers-processes a higher niceness? I don´t want to use the docker-specific features like --cpu-period, since that means I'll have to specify these arguments each time that I create a new container.
docker nice cgroup
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
I often run a lot of docker containers, which sometimes cause my system to freeze momentarily. To prevent this, I made a service that automatically sets the niceness of docker-containerd a bit higher. I thought that this would cause all new child processes to inherit this niceness, but when I start a new container all processes have a niceness of 0
Here is a screenshot of htop
I'm not sure if this is caused by howDocker works internally or something else (cgroups perhaps?).
Does anybody have an idea how I could automatically give all containers-processes a higher niceness? I don´t want to use the docker-specific features like --cpu-period, since that means I'll have to specify these arguments each time that I create a new container.
docker nice cgroup
docker nice cgroup
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
asked Nov 22 '17 at 10:59
Vinno97Vinno97
164
164
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
its the other way round for me. All my containers inherit the nice level from dockerd. But I want only dockerd to run in higher priority.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f979098%2fdocker-child-processes-do-not-inherit-niceness-of-daemon%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
its the other way round for me. All my containers inherit the nice level from dockerd. But I want only dockerd to run in higher priority.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
add a comment |
its the other way round for me. All my containers inherit the nice level from dockerd. But I want only dockerd to run in higher priority.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
add a comment |
its the other way round for me. All my containers inherit the nice level from dockerd. But I want only dockerd to run in higher priority.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
its the other way round for me. All my containers inherit the nice level from dockerd. But I want only dockerd to run in higher priority.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
answered 10 hours ago
Saravana Kumar PeriyasamySaravana Kumar Periyasamy
1
1
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Saravana Kumar Periyasamy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
add a comment |
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
2
2
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
This is how I would expect it to work, since child processes inherit the niceness of their parent when they get spawned. I made this post over a year ago and I don't remember the specifics. You could try to change the niceness of the daemon after the containers are started. This post does a quite decent job of explaining niceness: unix.stackexchange.com/a/37901/273800
– Vinno97
9 hours ago
add a comment |
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f979098%2fdocker-child-processes-do-not-inherit-niceness-of-daemon%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
