Messages in this thread | | | Date | Fri, 10 Nov 2006 09:43:10 -0600 | From | "Chris Friesen" <> | Subject | Re: [patch 13/19] GTOD: Mark TSC unusable for highres timers |
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Alan Cox wrote: > Ar Gwe, 2006-11-10 am 09:57 +0100, ysgrifennodd Ingo Molnar:
>>We should wait until CPU makers get their act together and implement a >>TSC variant that is /architecturally promised/ to have constant >>frequency (system bus frequency or whatever) and which never stops. > > This will never happen for the really big boxes, light is just too > slow... Our current TSC handling is not perfect but the TSC is often > quite usable.
This hypothetical clock wouldn't have to run full speed, would it? You could have a 1MHz clock distributed across even a large system fairly easily.
Wouldn't that be good enough?
Chris
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