On Tue, May 15, 2012 at 09:39:05AM -0400, Steven Rostedt wrote:

quoted

But you have to weight that against the cost of re-population, and
that's the difficult bit, since we have no clue how many tlb entries are
in use by the current cr3.

It might be possible for intel to give us this information, I've asked
for something similar for cachelines.

What information? The # of tlb entries in use?

... by the current %cr3, yes.

And also, before we delve into details, we still don't have a
representative benchmark where this shows any improvement.

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