From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 9 Apr 2007 11:46:14 -0700 (PDT) From: Christoph Lameter Subject: Re: [QUICKLIST 3/4] Quicklist support for x86_64 In-Reply-To: <200704092043.14335.ak@suse.de> Message-ID: References: <20070409182509.8559.33823.sendpatchset@schroedinger.engr.sgi.com> <20070409182520.8559.33529.sendpatchset@schroedinger.engr.sgi.com> <200704092043.14335.ak@suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andi Kleen Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: 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. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org