Re: [PATCH] mm: inactive-clean list
From: Rik van Riel
Date: Tue Jul 25 2006 - 20:00:24 EST
Christoph Lameter wrote:
On Tue, 25 Jul 2006, Rik van Riel wrote:
An increment of a VM counter causes a state change in the hypervisor?
Christoph, please read more than the first 5 words in each
email before replying.
Well, I read the whole thing before I replied and I could not figure this
one out. Maybe I am too dumb to understand. Could you please explain
yourself in more detail
Page state transitions can be very expensive in a virtualized
environment, so it would be good if we had fewer transitions.
I am also not sure why I should be running a hypervisor in the first place
and so I may not be up to date on the whole technology.
You may not, but IMHO it would be good if whatever new VM
things we implement in Linux would at least be virtualization
friendly. Especially if that can be achieved without hurting
native performance...
--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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