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    SubjectRe: [QUICKLIST 3/4] Quicklist support for x86_64
    On Mon, 9 Apr 2007, Andi Kleen wrote:

    > On Monday 09 April 2007 20:25:20 Christoph Lameter wrote:
    >
    > > #endif /* _X86_64_PGALLOC_H */
    > > Index: linux-2.6.21-rc5-mm4/arch/x86_64/kernel/process.c
    > > ===================================================================
    > > --- linux-2.6.21-rc5-mm4.orig/arch/x86_64/kernel/process.c 2007-04-07 18:07:47.000000000 -0700
    > > +++ linux-2.6.21-rc5-mm4/arch/x86_64/kernel/process.c 2007-04-07 18:09:30.000000000 -0700
    > > @@ -207,6 +207,7 @@
    > > if (__get_cpu_var(cpu_idle_state))
    > > __get_cpu_var(cpu_idle_state) = 0;
    > >
    > > + check_pgt_cache();
    >
    > Wouldn't it be better to do that on memory pressure only (register
    > it as a shrinker)?

    It has to be done in sync with tlb flushing. Doing that on memory pressure
    would complicate things significantly. Also idling means that the cache
    grows cold.

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