[CentOS-virt] Fast clock under VMWare
John Thomas
gmane-2006-04-16 at jt-socal.comFri Feb 22 19:12:22 UTC 2008
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Ray Van Dolson wrote: <snip> > I think the typical fix for the clock-too-fast problem is to boot your > guest OS with the clock=pit option and then use the VMware Tools time > synchronization option. FWIW, I do this and the click still runs slightly too fast. I put this script in my cron.hourly folder and run the VMWare Tools Time Sync to fix any resulting slowness. #!/bin/bash sleep 2 date --set='-1 second' >/dev/null 2>&1 I do no think the VMWare Tools handles "clock to fast" only "clock too slow". There must be a better way, but I do not know it. > If the clock is running too slow is where you want to look into using > one of the 100Hz kernels. I have found that the benefit of the VM kernel (aka 100Hz kernels) is that the load on the physical host is substantially reduced. I did not notice any timing issues/changes from this kernel. -- Sincerely, John Thomas
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