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    SubjectRe: [discuss] Re: 32-bit dma allocations on 64-bit platforms
    On Fri, Jun 25, 2004 at 01:48:47AM +1000, Nick Piggin wrote:
    >> 2.6 has the "incremental min" thing. What is wrong with that?
    >> Though I think it is turned off by default.

    On Thu, Jun 24, 2004 at 06:52:01PM +0200, Andrea Arcangeli wrote:
    > sysctl_lower_zone_protection is an inferior implementation of the
    > lower_zone_reserve_ratio, inferior because it has no way to give a
    > different balance to each zone. As you said it's turned off by default
    > so it had no tuning. The lower_zone_reserve_ratio has already been
    > tuned in 2.4. Somebody can attempt a conversion but it'll never be equal
    > since lower_zone_reserve_ratio is a superset of what
    > sysctl_lower_zone_protection can do.

    Is there any chance you could send in thise improved implementation of
    zone fallback watermarks and describe the deficiencies in the current
    scheme that it corrects?


    -- wli
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