(4/26/12 10:50 AM), Christoph Lameter wrote:
On Tue, 24 Apr 2012, Richard Davies wrote:
I strongly believe that Linux should have a way to turn off swapping unless
absolutely necessary. This means that users like us can run with swap
present for emergency use, rather than having to disable it because of the
side effects.
Agree. And this ooperation mode should be the default behavior given that
swapping is a very slow and tedious process these days.
Even though current patch is not optimal, I don't disagree this opinion. Can
you please explain your use case? Why don't you use swapoff?
Off topic: I hope linux is going to aim good swap clustered io in future. Especially
when using THP, 4k size io is not really good.
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