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| From | Adam Stanton <adamstanton1979@gmail.com> |
| Newsgroups | comp.os.linux.misc |
| Subject | Output of pstree -p <pid> shows threads with different pids |
| Date | Wed, 5 Nov 2014 09:44:08 -0800 |
| Organization | A noiseless patient Spider |
| Lines | 24 |
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I ran the program pstree -p 31872 which printed the following output:
ruby(31872)─┬─{ruby}(31906)
└─{ruby}(32372)
The man page for pstree says:
Child threads of a process are found under the parent process and are
shown with the process name in curly braces, e.g.
icecast2---13*[{icecast2}]
(The above is different output because of the missing -p option.
However running pstree 31872 gives:
ruby───2*[{ruby}]
which suggests a ruby process running 2 ruby threads.
My question is, why does the -p option show the threads with different
pids? I would expect them to be the same (31872) as the process. Running
htop also shows the same results.
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Output of pstree -p <pid> shows threads with different pids Adam Stanton <adamstanton1979@gmail.com> - 2014-11-05 09:44 -0800
Re: Output of pstree -p <pid> shows threads with different pids Richard Kettlewell <rjk@greenend.org.uk> - 2014-11-05 18:23 +0000
Re: Output of pstree -p <pid> shows threads with different pids Adam Stanton <adamstanton1979@gmail.com> - 2014-11-05 11:05 -0800
Re: Output of pstree -p <pid> shows threads with different pids Richard Kettlewell <rjk@greenend.org.uk> - 2014-11-05 19:34 +0000
Re: Output of pstree -p <pid> shows threads with different pids Adam Stanton <adamstanton1979@gmail.com> - 2014-11-05 11:52 -0800
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