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    SubjectRe: [PATCH 0/5] make slab gfp fair
    On Mon, 14 May 2007, Peter Zijlstra wrote:

    > > Why does this have to handled by the slab allocators at all? If you have
    > > free pages in the page allocator then the slab allocators will be able to
    > > use that reserve.
    >
    > Yes, too freely. GFP flags are only ever checked when you allocate a new
    > page. Hence, if you have a low reaching alloc allocating a slab page;
    > subsequent non critical GFP_KERNEL allocs can fill up that slab. Hence
    > you would need to reserve a slab per object instead of the normal
    > packing.

    This is all about making one thread fail rather than another? Note that
    the allocations are a rather compex affair in the slab allocators. Per
    node and per cpu structures play a big role.


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