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    SubjectRE: [RFC][PATCH] avoid swapping out with swappiness==0
    On 04/24/2012 04:20 AM, Richard Davies wrote:
    >
    > I have run into problems with heavy swapping with swappiness==0 and
    > was pointed to this thread (
    > http://marc.info/?l=linux-mm&m=133522782307215 )

    Did you test this patch with your workload?
    If yes, how did it come out?

    > 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.

    Agreed. That is why I proposed the patch.

    > Personally, I feel that swappiness==0 should have this (intuitive)
    > meaning, and that people running RHEL5 are extremely unlikely to run
    > 3.5 kernels(!)
    >
    > However, swappiness==-1 or some other hack is definitely better than
    > no patch.


    Regards,
    Satoru
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