Peformance issues with r278325

Ryan Stone rysto32 at gmail.com
Fri Mar 18 18:49:20 UTC 2016


On Fri, Mar 18, 2016 at 1:37 PM, John Baldwin <jhb at freebsd.org> wrote:

> I think I'll likely just convert it to use a direct
> TSC delay loop always in HEAD (assuming that verifies ok in testing as
> well).
>

Couldn't that work incorrectly on VM guests?  The tsc is not guaranteed to
be monotonic in that environment.


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