From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
virtualization@lists.osdl.org,
lkml <linux-kernel@vger.kernel.org>,
William Lee Irwin III <wli@holomorphy.com>,
Zachary Amsden <zach@vmware.com>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [patch 07/20] Allow paravirt backend to choose kernel PMD sharing
Date: Wed, 04 Apr 2007 17:43:13 -0700 [thread overview]
Message-ID: <46144621.20407@goop.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0704041729300.22161@schroedinger.engr.sgi.com>
Christoph Lameter wrote:
> Acked-by: Christoph Lameter <clameter@sgi.com>
>
> for all thats worth since I am not a i386 specialist.
>
> How much of the issues with page struct sharing between slab and arch code
> does this address?
>
I haven't been following that thread as closely as I should be, so I
don't have an answer. I guess the interesting thing in this patch is
that it only uses the pmd cache for usermode pmds (which are
pre-zeroed), and normal page allocations for kernel pmds. Also, if the
kernel pmds are unshared, the pgds are page-sized, so its not really
making good use of the pgd cache.
J
next prev parent reply other threads:[~2007-04-05 0:43 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-04 19:11 [patch 00/20] paravirt_ops updates Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 01/20] update MAINTAINERS Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 02/20] Remove CONFIG_DEBUG_PARAVIRT Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 03/20] use paravirt_nop to consistently mark no-op operations Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 04/20] Add pagetable accessors to pack and unpack pagetable entries Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 05/20] Hooks to set up initial pagetable Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 06/20] Allocate a fixmap slot Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:11 ` [patch 07/20] Allow paravirt backend to choose kernel PMD sharing Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-05 0:30 ` Christoph Lameter
2007-04-05 0:43 ` Jeremy Fitzhardinge [this message]
2007-04-05 1:29 ` Chris Wright
2007-04-06 23:41 ` Andrew Morton
2007-04-06 23:41 ` Andrew Morton
2007-04-07 0:02 ` Jeremy Fitzhardinge
2007-04-07 0:02 ` Jeremy Fitzhardinge
2007-04-07 0:28 ` Andrew Morton
2007-04-07 0:40 ` Jeremy Fitzhardinge
2007-04-07 0:40 ` Jeremy Fitzhardinge
2007-04-07 1:21 ` Andrew Morton
2007-04-07 5:47 ` Jeremy Fitzhardinge
2007-04-09 2:36 ` William Lee Irwin III
2007-04-04 19:11 ` [patch 08/20] add hooks to intercept mm creation and destruction Jeremy Fitzhardinge
2007-04-04 19:11 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 09/20] rename struct paravirt_patch to paravirt_patch_site for clarity Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-06 23:18 ` Andrew Morton
2007-04-06 23:18 ` Andrew Morton
2007-04-06 23:24 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 10/20] Use patch site IDs computed from offset in paravirt_ops structure Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 11/20] Fix patch site clobbers to include return register Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 12/20] Consistently wrap paravirt ops callsites to make them patchable Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 13/20] Document asm-i386/paravirt.h Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 14/20] add common patching machinery Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 15/20] add flush_tlb_others paravirt_op Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 16/20] revert map_pt_hook Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 17/20] add kmap_atomic_pte for mapping highpte pages Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 18/20] clean up tsc-based sched_clock Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-06 23:22 ` Andrew Morton
2007-04-06 23:27 ` Jeremy Fitzhardinge
2007-04-06 23:45 ` Andrew Morton
2007-04-06 23:40 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 19/20] Add a sched_clock paravirt_op Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-04 19:12 ` [patch 20/20] Add apply_to_page_range() which applies a function to a pte range Jeremy Fitzhardinge
2007-04-04 19:12 ` Jeremy Fitzhardinge
2007-04-05 4:41 ` Matt Mackall
2007-04-05 4:41 ` Matt Mackall
2007-04-05 6:52 ` Jeremy Fitzhardinge
2007-04-05 6:52 ` Jeremy Fitzhardinge
2007-04-17 20:56 ` Matt Mackall
2007-04-17 20:56 ` Matt Mackall
2007-04-19 19:44 ` Jeremy Fitzhardinge
2007-04-19 19:59 ` Matt Mackall
2007-04-19 19:59 ` Matt Mackall
2007-04-19 21:37 ` Jeremy Fitzhardinge
2007-04-19 21:37 ` Jeremy Fitzhardinge
2007-04-19 21:30 ` Matt Mackall
2007-04-19 21:30 ` Matt Mackall
2007-04-19 22:30 ` Jeremy Fitzhardinge
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