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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