Are [kthreadd] and [rcu_gp] commands?
I want to learn from the output from command ps
usr@host:~$ ps -ef | head -5
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 16:43 ? 00:00:04 /sbin/init splash
root 2 0 0 16:43 ? 00:00:00 [kthreadd]
root 3 2 0 16:43 ? 00:00:00 [rcu_gp]
root 4 2 0 16:43 ? 00:00:00 [rcu_par_gp]
/sbin/init is not hard to follow, utility init start a big bang to splash elements, it is a command.
when it comes to [kthreadd], [rcu_gp], I do not find such utilities or command from the entire file system.
Are they commands?
init
asked Jan 18 at 14:45
JawSawJawSaw
443314
add a comment |
I want to learn from the output from command ps
usr@host:~$ ps -ef | head -5
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 16:43 ? 00:00:04 /sbin/init splash
root 2 0 0 16:43 ? 00:00:00 [kthreadd]
root 3 2 0 16:43 ? 00:00:00 [rcu_gp]
root 4 2 0 16:43 ? 00:00:00 [rcu_par_gp]
/sbin/init is not hard to follow, utility init start a big bang to splash elements, it is a command.
when it comes to [kthreadd], [rcu_gp], I do not find such utilities or command from the entire file system.
Are they commands?
init
asked Jan 18 at 14:45
JawSawJawSaw
443314
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57
add a comment |
I want to learn from the output from command ps
usr@host:~$ ps -ef | head -5
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 16:43 ? 00:00:04 /sbin/init splash
root 2 0 0 16:43 ? 00:00:00 [kthreadd]
root 3 2 0 16:43 ? 00:00:00 [rcu_gp]
root 4 2 0 16:43 ? 00:00:00 [rcu_par_gp]
/sbin/init is not hard to follow, utility init start a big bang to splash elements, it is a command.
when it comes to [kthreadd], [rcu_gp], I do not find such utilities or command from the entire file system.
Are they commands?
init
asked Jan 18 at 14:45
JawSawJawSaw
443314
I want to learn from the output from command ps
usr@host:~$ ps -ef | head -5
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 16:43 ? 00:00:04 /sbin/init splash
root 2 0 0 16:43 ? 00:00:00 [kthreadd]
root 3 2 0 16:43 ? 00:00:00 [rcu_gp]
root 4 2 0 16:43 ? 00:00:00 [rcu_par_gp]
/sbin/init is not hard to follow, utility init start a big bang to splash elements, it is a command.
when it comes to [kthreadd], [rcu_gp], I do not find such utilities or command from the entire file system.
Are they commands?
init
init
asked Jan 18 at 14:45
JawSawJawSaw
443314
asked Jan 18 at 14:45
JawSawJawSaw
443314
asked Jan 18 at 14:45
JawSawJawSaw
443314
asked Jan 18 at 14:45
JawSawJawSaw
443314
asked Jan 18 at 14:45
JawSawJawSaw
443314
443314
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57
add a comment |
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57
add a comment |
0
active
oldest
votes
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%2f1110899%2fare-kthreadd-and-rcu-gp-commands%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
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%2f1110899%2fare-kthreadd-and-rcu-gp-commands%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
I believe those are bits inside the Linux Kernel, and not utilities or commands that are executed in userspace.
– Thomas Ward♦
Jan 18 at 14:52
They are kernel processes, this would help: stackoverflow.com/questions/17988526 Or this unix.stackexchange.com/questions/83322
– Aaron Shang
Jan 18 at 14:57