I read http://bugs.centos.org/view.php?id=2189 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=10 and hope the clock does not go fast (I have not tried this).
John Thomas wrote:
I read http://bugs.centos.org/view.php?id=2189 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:
- 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=10 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=2635
Thanks, Johnny Hughes
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John Thomas -
Johnny Hughes