FAQ
I read http://bugs.centos.org/view.php?id!89
Summary: CentOS is not getting optimal performance in a virtualized
environment and on slow cpus
but I am not sure I understand the current best practice. Your thoughts
would be appreciated.

Options as I see them:
1. Run kernel-vm-2.6.18-53.1.4.el5 with clocksource=pit until the
excellent CentOS team builds the latest kernel into a VM kernel (This is
working for me now).
2. Run kernel-2.6.18-53.1.6.el5 with divider and hope the clock does
not go fast (I have not tried this).

--
Sincerely,
John Thomas

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  • Johnny Hughes at Feb 9, 2008 at 5:57 pm

    John Thomas wrote:
    I read http://bugs.centos.org/view.php?id!89
    Summary: CentOS is not getting optimal performance in a virtualized
    environment and on slow cpus
    but I am not sure I understand the current best practice. Your thoughts
    would be appreciated.

    Options as I see them:
    1. Run kernel-vm-2.6.18-53.1.4.el5 with clocksource=pit until the
    excellent CentOS team builds the latest kernel into a VM kernel (This is
    working for me now).
    2. Run kernel-2.6.18-53.1.6.el5 with divider and hope the clock does
    not go fast (I have not tried this).
    there is a kernel-vm for 2.6.18-53.1.6.el5 now too

    http://people.centos.org/~tru/kernel-vm/

    ... however, if you need NFS then you will what to use
    2.6.18-53.1.4.el5, see this bug:


    http://bugs.centos.org/view.php?id&35

    Thanks,
    Johnny Hughes


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postedFeb 9, '08 at 5:15p
activeFeb 9, '08 at 5:57p
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