Clock Sources Explanation For x86_64 -- acpi_pm, jiffies, tsc -- Virtualization Imapct -- VMWare, Xen
Robert L Cochran
cochranb at speakeasy.net
Mon Sep 10 01:59:37 UTC 2007
Here are the clock sources my Fedora 7 x86_64 kernel considers to be
available:
[root at bobcp4 ~]# cat
/sys/devices/system/clocksource/clocksource0/available_clocksource
acpi_pm jiffies tsc
Where can I find an explanation of these -- is there a writeup that can
help me decide which one is best to use?
My system is using acpi_pm. How would this impact VMWare or Xen guests?
Thanks
Bob Cochran
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