On Tuesday 08 July 2008 05:07:49 Jeremy Fitzhardinge wrote:
> At the most recent Xen Summit, Thomas Friebel presented a paper
> ("Preventing Guests from Spinning Around",
> http://xen.org/files/xensummitboston08/LHP.pdf) investigating the
> interactions between spinlocks and virtual machines. Specifically, he
> looked at what happens when a lock-holding VCPU gets involuntarily
> preempted.
I find it interesting that gang scheduling the guest was not suggested as an
obvious solution.
Anyway, concept looks fine; lguest's solution is more elegant of course :)
A little disappointing that you can't patch your version inline.
Cheers,
Rusty.
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