From: Christoph Lameter <clameter@sgi.com>
To: Andi Kleen <ak@suse.de>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [QUICKLIST 3/4] Quicklist support for x86_64
Date: Mon, 9 Apr 2007 11:46:14 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0704091144270.8783@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <200704092043.14335.ak@suse.de>
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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next prev parent reply other threads:[~2007-04-09 18:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-09 18:25 [QUICKLIST 1/4] Quicklists for page table pages V5 Christoph Lameter
2007-04-09 18:25 ` [QUICKLIST 2/4] Quicklist support for IA64 Christoph Lameter
2007-04-09 18:25 ` [QUICKLIST 3/4] Quicklist support for x86_64 Christoph Lameter
2007-04-09 18:43 ` Andi Kleen
2007-04-09 18:46 ` Christoph Lameter [this message]
2007-04-09 18:49 ` Andi Kleen
2007-04-09 18:51 ` Christoph Lameter
2007-04-09 18:53 ` Andi Kleen
2007-04-09 18:56 ` Christoph Lameter
2007-04-09 21:28 ` Andrew Morton
2007-04-09 22:01 ` Christoph Lameter
2007-04-09 18:25 ` [QUICKLIST 4/4] Quicklist support for sparc64 Christoph Lameter, David Miller
2007-04-09 18:48 ` [QUICKLIST 1/4] Quicklists for page table pages V5 Andrew Morton
2007-04-09 18:50 ` Christoph Lameter
2007-04-09 21:27 ` Andrew Morton
2007-04-09 21:41 ` Andrew Morton
2007-04-09 22:03 ` Christoph Lameter
2007-04-10 0:26 ` William Lee Irwin III
2007-04-10 0:53 ` Christoph Lameter
2007-04-10 4:45 ` Benjamin Herrenschmidt
2007-04-11 4:04 ` Christoph Lameter
2007-04-11 4:18 ` Benjamin Herrenschmidt
2007-04-11 5:41 ` Paul Mackerras
2007-04-11 6:15 ` Benjamin Herrenschmidt
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