[PVE-User] Question about memory management

[Martin Maurer]

> -----Original Message-----
> From: pve-user-bounces at pve.proxmox.com [mailto:pve-user-
> bounces at pve.proxmox.com] On Behalf Of Hart, Brian R.
> Sent: Freitag, 03. Juni 2011 21:48
> To: pve-user at pve.proxmox.com
> Subject: Re: [PVE-User] Question about memory management
> 
> This email thread got me interested in KSM as I did not know that it existed
> prior to this and I discovered that in order to use it you must use kernel 2.6.35
> which doesn't have openvz support.  My question is, In a PVE Cluster, is it
> possible to upgrade the kernel to 2.6.35 to get the KSM support on some
> nodes but keep some nodes at the 2.6.32 level in order to run OpenVZ?
[Martin Maurer] 

Yes, see http://pve.proxmox.com/wiki/Proxmox_VE_Kernel
Br, martin

> 
> 
> 
> 
> Brian Hart
> Systems Administration Specialist
> University of Oklahoma
> Center for Spatial Analysis
> Two Partners Place
> 3100 Monitor, Suite 180
> Norman, OK 73072
> Office: (405)325-9611
> Mobile: (405)397-2133
> http://csa.ou.edu/
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Frederic MASSOT <frederic at juliana-multimedia.com>
> Organization: JULIANA Multimedia
> Date: Thu, 2 Jun 2011 16:08:52 +0200
> To: <pve-user at pve.proxmox.com>
> Subject: Re: [PVE-User] Question about memory management
> 
> >Le 02/06/2011 09:56, Martin Maurer a écrit :
> >> Use KSM.
> >>
> >> http://pve.proxmox.com/wiki/KSM
> >> http://www.linux-kvm.org/page/KSM
> >
> >Hi,
> >
> >About KSM and ksmtuned daemon, the installation script
> >(/var/lib/dpkg/info/ksm-control-daemon.postinst) specifies the defaults
> >runlevel 2345 (update-rc.d ksmtuned defaults 21), but in the header of
> >the startup script (/etc/init.d/ksmtuned) runlevel 2 is forgotten :
> >
> ># chkconfig: 345 85 15
> ># description: The KSM tuning daemon controls whether ...
> ># processname: ksmtuned
> ># config: /etc/ksmtuned.conf
> ># pidfile: /var/run/ksmtuned.pid
> >#
> >### BEGIN INIT INFO
> ># Provides: ksmtuned
> ># Required-Start:
> ># Required-Stop:
> ># Should-Start:
> ># Default-Start: 3 4 5
> ># Default-Stop: 0 1 6
> >
> >
> >Most of the Debian system operates a level 2, in this case during the
> >package installation runlevel 2 is not taken into account and ksmtuned
> >is not running.
> >
> >$ sudo update-rc.d ksmtuned defaults 21
> >update-rc.d: using dependency based boot sequencing
> >update-rc.d: warning: ksmtuned start runlevel arguments (2 3 4 5) do
> >not match LSB Default-Start values (3 4 5)
> >
> >Tested with sysv-rc 2.88dsf-13.1
> >
> >
> >Regards.
> >--
> >==============================================
> >|              FRÉDÉRIC MASSOT               |
> >|     http://www.juliana-multimedia.com      |
> >|   mailto:frederic at juliana-multimedia.com   |
> >===========================Debian=GNU/Linux===
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