From: Nick Piggin <npiggin@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: Matt Mackall <mpm@selenic.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [patch 1/3] slob: rework freelist handling
Date: Thu, 24 May 2007 06:24:31 +0200 [thread overview]
Message-ID: <20070524042431.GA12121@wotan.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0705232103260.24495@schroedinger.engr.sgi.com>
On Wed, May 23, 2007 at 09:05:20PM -0700, Christoph Lameter wrote:
> On Thu, 24 May 2007, Nick Piggin wrote:
>
> > > Well as far as I understand Matt it seems that you still need 2 bytes per
> > > alloc. That is still more than 0 that SLUB needs.
> >
> > That's true, but I think the more relevant number is that SLUB needs
> > 400K more memory to boot into /bin/bash.
>
> I am bit amazed by that. Where is that memory going to?
Well, you tell me, you're the SLUB guy ;)
> What page size
> does the system have?
>
> If we have 4k pages there then this boils down to 100 pages.
Yep, 4K pages.
> Does booting with
>
> slub_max_order=0
>
> change things?
With that, `free` alternates between telling me 764 and 768K free
(without the parameter, it would alternate between 756 and 760). So
yes, marginally.
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next prev parent reply other threads:[~2007-05-24 4:24 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-22 7:39 Nick Piggin
2007-05-22 7:39 ` [patch 2/3] slob: remove bigblock tracking Nick Piggin
2007-05-22 7:41 ` [patch 3/3] slob: improved alignment handling Nick Piggin
2007-05-22 14:53 ` [patch 1/3] slob: rework freelist handling Matt Mackall
2007-05-22 19:18 ` Christoph Lameter
2007-05-23 3:06 ` Nick Piggin
2007-05-23 4:55 ` Christoph Lameter
2007-05-23 4:59 ` Nick Piggin
2007-05-23 5:01 ` Christoph Lameter
2007-05-23 5:03 ` Nick Piggin
2007-05-23 5:06 ` Christoph Lameter
2007-05-23 5:11 ` Nick Piggin
2007-05-23 5:14 ` Christoph Lameter
2007-05-23 5:22 ` Nick Piggin
2007-05-23 5:28 ` Christoph Lameter
2007-05-23 6:17 ` Nick Piggin
2007-05-23 6:28 ` Christoph Lameter
2007-05-23 7:12 ` Nick Piggin
2007-05-23 17:03 ` Christoph Lameter
2007-05-23 18:32 ` Matt Mackall
2007-05-23 19:15 ` Christoph Lameter
2007-05-23 19:58 ` Matt Mackall
2007-05-23 20:02 ` Christoph Lameter
2007-05-23 20:16 ` Christoph Lameter
2007-05-23 21:14 ` Matt Mackall
2007-05-23 21:06 ` Matt Mackall
2007-05-23 22:26 ` Christoph Lameter
2007-05-23 22:42 ` Matt Mackall
2007-05-23 22:48 ` Christoph Lameter
2007-05-24 2:05 ` Nick Piggin
2007-05-24 2:45 ` Christoph Lameter
2007-05-24 2:47 ` Nick Piggin
2007-05-24 2:55 ` Christoph Lameter
2007-05-24 3:17 ` Nick Piggin
2007-05-24 2:49 ` Christoph Lameter
2007-05-24 3:15 ` Nick Piggin
2007-05-24 3:51 ` Christoph Lameter
2007-05-24 6:11 ` Matt Mackall
2007-05-24 16:36 ` Christoph Lameter
2007-05-24 17:22 ` Matt Mackall
2007-05-24 17:27 ` Christoph Lameter
2007-05-24 17:44 ` Matt Mackall
2007-05-23 6:38 ` Christoph Lameter
2007-05-23 7:18 ` Nick Piggin
2007-05-23 17:06 ` Christoph Lameter
2007-05-23 7:46 ` Nick Piggin
2007-05-23 17:07 ` Christoph Lameter
2007-05-23 19:35 ` Matt Mackall
2007-05-23 19:59 ` Christoph Lameter
2007-05-23 20:51 ` Matt Mackall
2007-05-24 3:39 ` Nick Piggin
2007-05-24 3:55 ` Christoph Lameter
2007-05-24 4:13 ` Nick Piggin
2007-05-24 4:23 ` Christoph Lameter
2007-05-24 4:31 ` Nick Piggin
2007-05-24 4:35 ` Christoph Lameter
2007-05-24 4:39 ` Nick Piggin
2007-05-24 4:46 ` Christoph Lameter
2007-05-24 4:49 ` Nick Piggin
2007-05-24 5:07 ` Christoph Lameter
2007-05-24 3:24 ` Nick Piggin
2007-05-24 3:49 ` Christoph Lameter
2007-05-24 4:01 ` Nick Piggin
2007-05-24 4:05 ` Christoph Lameter
2007-05-24 4:24 ` Nick Piggin [this message]
2007-05-23 18:04 ` Christoph Lameter
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