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    SubjectRe: [PATCH 6/6] don't compute pvclock adjustments if we trust the tsc
    On 04/27/2010 04:40 PM, Marcelo Tosatti wrote:
    > On Mon, Apr 26, 2010 at 01:46:28PM -0400, Glauber Costa wrote:
    >
    >> If the HV told us we can fully trust the TSC, skip any
    >> correction
    >>
    >>
    > Please drop this. Its not certain what is the best method to reduce
    > contention on the global variable. Whatever it is, can be done later.
    >
    >

    The problem is lead time. If we (or the cpu vendors) fix this in the
    hypervisor/processors in a year, then we want existing guests to take
    advantage of it immediately.

    --
    Do not meddle in the internals of kernels, for they are subtle and quick to panic.



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