Messages in this thread |  | | | Date | Mon, 9 Apr 2007 11:46:14 -0700 (PDT) | | From | Christoph Lameter <> | | Subject | Re: [QUICKLIST 3/4] Quicklist support for x86_64 |
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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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