[PVE-User] Question about memory management

[Hart, Brian R.]

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?




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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