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From: Andrew Morton <akpm@linux-foundation.org>
To: David Miller <davem@davemloft.net>
Cc: paulus@samba.org, clameter@sgi.com, linux-kernel@vger.kernel.org,
	ak@suse.com, holt@sgi.com, linux-ia64@vger.kernel.org,
	mpm@selenic.com
Subject: Re: [QUICKLIST 0/6] Arch independent quicklists V1
Date: Thu, 15 Mar 2007 00:39:16 -0800	[thread overview]
Message-ID: <20070315003916.8a78dd0c.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070315.003118.41650094.davem@davemloft.net>

> On Thu, 15 Mar 2007 00:31:18 -0700 (PDT) David Miller <davem@davemloft.net> wrote:
> From: Andrew Morton <akpm@linux-foundation.org>
> Date: Thu, 15 Mar 2007 00:22:49 -0800
> 
> > So...  what would happen if sparc64 were to use neither quicklists nor
> > slab?  Just grab these pages from the page allocator and clear them?
> 
> The page table allocator is heavier weight than the quicklists,
> although obviously not as heavy weight as SLAB.

Spose so, although only in the case where we go into the buddy lists, I hope.

otoh, releasing a cache-hot page into the page allocator makes it available for
other use.

It'd be nice if you could run the numbers sometime, please - if it's OK then
we can remove code...

  reply	other threads:[~2007-03-15  7:39 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-11  2:09 [QUICKLIST 0/6] Arch independent quicklists V1 Christoph Lameter
2007-03-11  2:09 ` [QUICKLIST 1/6] Extract quicklist implementation from IA64 Christoph Lameter
2007-03-11  2:09 ` [QUICKLIST 2/6] i386: quicklist support Christoph Lameter
2007-03-11  3:22   ` William Lee Irwin III
2007-03-11  2:09 ` [QUICKLIST 3/6] i386: Use standard list manipulators for pgd_list Christoph Lameter
2007-03-11  2:09 ` [QUICKLIST 4/6] x86_64: Single Quicklist Christoph Lameter
2007-03-11  7:54   ` Andi Kleen
2007-03-11 16:44     ` Christoph Lameter
2007-03-14 19:49       ` Mel Gorman
2007-03-11  2:09 ` [QUICKLIST 5/6] x86_64: Separate quicklist for pgds Christoph Lameter
2007-03-11  2:09 ` [QUICKLIST 6/6] slub: remove special casing for PAGE_SIZE slabs Christoph Lameter
2007-03-11 20:59 ` [QUICKLIST 0/6] Arch independent quicklists V1 David Miller
2007-03-12 11:12   ` Christoph Lameter
2007-03-12 11:23     ` David Miller
2007-03-12 15:52     ` Robin Holt
2007-03-12 22:51 ` David Miller
2007-03-13  0:37   ` Paul Mackerras
2007-03-13  1:38     ` Christoph Lameter
2007-03-13  2:26     ` David Miller
2007-03-13  2:32       ` David Miller
2007-03-15  8:22         ` Andrew Morton
2007-03-15  7:31           ` David Miller
2007-03-15  8:39             ` Andrew Morton [this message]
2007-03-14  0:41   ` William Lee Irwin III

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