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Script to show OpenVZ container process informtion
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Script to show OpenVZ container process informtion

MicrolinuxMicrolinux Member
edited May 2014 in Tutorials

Here is a little Python script to show OpenVZ container process info from the hardware node.

I only have a minimal dev system to test on. If any values look wrong, let me know.

Must be run as root, requires iotop.

https://dl.dropboxusercontent.com/u/19515814/vzpsi

vzpsi [-s sort_field (pid)] [-n show_top_n (all)] [-q] [ctid]

-s is one of ctid, name, pid, ppid, cpu, mem, io_rd, io_wr
-n is an integer
-q suppresses output header

If no ctid is specified, all processes are shown.

sudo ./vzpsi -s mem -n 5 101

ctid  name            pid      ppid      cpu     mem (rss)   io_rd      io_wr
----  --------------  -------  --------  ------  ----------  ---------  ---------
101   httpd           12691    12155     0.0 %   3.6 MB      0 KB/s     0 KB/s
101   httpd           13371    12691     0.0 %   3.0 MB      0 KB/s     0 KB/s
101   httpd           12694    12691     0.0 %   2.9 MB      0 KB/s     0 KB/s
101   sendmail        12675    12155     0.0 %   2.3 MB      0 KB/s     0 KB/s
101   sendmail        12683    12155     0.0 %   2.0 MB      0 KB/s     0 KB/s
Thanked by 1serverian

Comments

  • MicrolinuxMicrolinux Member
    edited May 2014

    I updated this to fix I/O speeds and add IOPs.

    Some internal changes as well. Removed external dependencies, cleaned things up.

  • zionvpszionvps Member

    nice work. will try out in one of our nodes

  • MicrolinuxMicrolinux Member
    edited May 2014

    Cool, let me know if you see anything funky`

  • Very good. But I'm a bit sceptic about /proc/%s/io I'm not sure if it's the correct values.

    Cheap VPS - VPSDime

  • MicrolinuxMicrolinux Member
    edited May 2014

    @serverian said:
    Very good. But I'm a bit sceptic about /proc/%s/io I'm not sure if it's the correct values.

    I'm fairly certain it is, it has checked out against tests I have run (i.e. ioping) -- but it's certainly possible there are situations where it may not be. If you happen to notice anything that seems overtly wrong, please let me know.

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