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"cpus" config option and "--set cpus" issue [message #34544]

Fri, 16 January 2009 11:39

pauld
Messages: 5
Registered: January 2009

Junior Member

Hello there,

I'm just starting out with openvz and have created my initial template following the walkthrough at http://wiki.openvz.org/Ubuntu_Hardy_template_creation.

I didn't really run into any issues with this (quite excellent) howto, but when trying to set the number of CPUs visable from a container, either using the command vzctl set <veid> --cpus <num> --save or by specifying and applying a ve config CPUS="1" the number of processors within the container stays the same as the hardware host.

root@vz:~# vzctl --version
vzctl version 3.0.22
root@vz:~# uname -a
Linux vz 2.6.24-23-openvz #1 SMP Thu Nov 27 20:50:16 UTC 2008 x86_64 GNU/Linux
root@vz:~# vzlist
      VEID      NPROC STATUS  IP_ADDR         HOSTNAME
       777          9 running -               -
root@vz:~# cat /proc/cpuinfo | egrep "processor|vendor_id"
processor       : 0
vendor_id       : GenuineIntel
processor       : 1
vendor_id       : GenuineIntel
processor       : 2
vendor_id       : GenuineIntel
processor       : 3
vendor_id       : GenuineIntel
processor       : 4
vendor_id       : GenuineIntel
processor       : 5
vendor_id       : GenuineIntel
processor       : 6
vendor_id       : GenuineIntel
processor       : 7
vendor_id       : GenuineIntel
root@vz:~# vzctl set 777 --cpus 1 --save
Setting CPUs: 1
Saved parameters for VE 777
root@vz:~# vzctl restart 777
Restarting VE
Stopping VE ...
VE was stopped
VE is unmounted
Starting VE ...
VE is mounted
Setting CPU units: 1000
Setting CPUs: 1
Configure meminfo: 9223372036854775807
File resolv.conf was modified
VE start in progress...
root@vz:~# vzctl exec 777 cat /proc/cpuinfo | egrep "processor|vendor_id"
processor       : 0
vendor_id       : GenuineIntel
processor       : 1
vendor_id       : GenuineIntel
processor       : 2
vendor_id       : GenuineIntel
processor       : 3
vendor_id       : GenuineIntel
processor       : 4
vendor_id       : GenuineIntel
processor       : 5
vendor_id       : GenuineIntel
processor       : 6
vendor_id       : GenuineIntel
processor       : 7
vendor_id       : GenuineIntel

Is there any more information I can provide to shine more light on this issue? (If it is indeed an issue and I amn't just misunderstanding the --cpus flag!) Any suggestions are greatly appreciated.

Regards,
Paul

[Updated on: Fri, 16 January 2009 11:50]

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[Message index]

		"cpus" config option and "--set cpus" issue By: pauld on Fri, 16 January 2009 11:39
		Re: "cpus" config option and "--set cpus" issue By: khorenko on Fri, 16 January 2009 11:54
		Re: "cpus" config option and "--set cpus" issue By: pauld on Fri, 16 January 2009 12:02
		Re: "cpus" config option and "--set cpus" issue By: khorenko on Fri, 16 January 2009 12:12
		Re: "cpus" config option and "--set cpus" issue By: pauld on Fri, 16 January 2009 18:18
		Re: "cpus" config option and "--set cpus" issue By: n00b_admin on Fri, 16 January 2009 18:41
		Re: "cpus" config option and "--set cpus" issue By: pauld on Fri, 16 January 2009 18:48
		Re: "cpus" config option and "--set cpus" issue By: khorenko on Mon, 19 January 2009 10:01
		Re: "cpus" config option and "--set cpus" issue By: pauld on Mon, 19 January 2009 10:56
		Re: "cpus" config option and "--set cpus" issue By: n00b_admin on Fri, 16 January 2009 19:35

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