From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Christoph Lameter <clameter@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Christoph Hellwig <hch@lst.de>, Mel Gorman <mel@skynet.ie>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
David Chinner <dgc@sgi.com>, Jens Axboe <jens.axboe@oracle.com>,
akpm@linux-foundation.org
Subject: Re: [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK
Date: Tue, 2 Oct 2007 18:37:24 +1000 [thread overview]
Message-ID: <200710021837.24772.nickpiggin@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.64.0710011358350.19779@schroedinger.engr.sgi.com>
On Tuesday 02 October 2007 07:01, Christoph Lameter wrote:
> On Sat, 29 Sep 2007, Peter Zijlstra wrote:
> > On Fri, 2007-09-28 at 11:20 -0700, Christoph Lameter wrote:
> > > Really? That means we can no longer even allocate stacks for forking.
> >
> > I think I'm running with 4k stacks...
>
> 4k stacks will never fly on an SGI x86_64 NUMA configuration given the
> additional data that may be kept on the stack. We are currently
> considering to go from 8k to 16k (or even 32k) to make things work. So
> having the ability to put the stacks in vmalloc space may be something to
> look at.
i386 and x86-64 already used 8K stacks for years and they have never
really been much problem before.
They only started failing when contiguous memory is getting used up
by other things, _even with_ those anti-frag patches in there.
Bottom line is that you do not use higher order allocations when you do
not need them.
next prev parent reply other threads:[~2007-10-03 1:09 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-19 3:36 [00/17] [RFC] Virtual Compound Page Support Christoph Lameter
2007-09-19 3:36 ` [01/17] Vmalloc: Move vmalloc_to_page to mm/vmalloc Christoph Lameter
2007-09-19 3:36 ` [02/17] Vmalloc: add const Christoph Lameter
2007-09-19 3:36 ` [03/17] is_vmalloc_addr(): Check if an address is within the vmalloc boundaries Christoph Lameter
2007-09-19 6:32 ` David Rientjes
2007-09-19 7:24 ` Anton Altaparmakov
2007-09-19 8:09 ` David Rientjes
2007-09-19 8:44 ` Anton Altaparmakov
2007-09-19 9:19 ` David Rientjes
2007-09-19 13:23 ` Anton Altaparmakov
2007-09-19 17:29 ` Christoph Lameter
2007-09-19 17:52 ` Anton Altaparmakov
2007-09-19 17:29 ` Christoph Lameter
2007-09-19 17:52 ` Anton Altaparmakov
2007-09-19 3:36 ` [04/17] vmalloc: clean up page array indexing Christoph Lameter
2007-09-19 3:36 ` [05/17] vunmap: return page array Christoph Lameter
2007-09-19 8:05 ` KAMEZAWA Hiroyuki
2007-09-19 22:15 ` Christoph Lameter
2007-09-20 0:47 ` KAMEZAWA Hiroyuki
2007-09-19 3:36 ` [06/17] vmalloc_address(): Determine vmalloc address from page struct Christoph Lameter
2007-09-19 3:36 ` [07/17] GFP_VFALLBACK: Allow fallback of compound pages to virtual mappings Christoph Lameter
2007-09-19 3:36 ` [08/17] Pass vmalloc address in page->private Christoph Lameter
2007-09-19 3:36 ` [09/17] VFALLBACK: Debugging aid Christoph Lameter
2007-09-19 3:36 ` [10/17] Use GFP_VFALLBACK for sparsemem Christoph Lameter
2007-09-19 3:36 ` [11/17] GFP_VFALLBACK for zone wait table Christoph Lameter
2007-09-19 3:36 ` [12/17] Virtual Compound page allocation from interrupt context Christoph Lameter
2007-09-19 3:36 ` [13/17] Virtual compound page freeing in " Christoph Lameter
2007-09-18 20:36 ` Nick Piggin
2007-09-20 17:50 ` Christoph Lameter
2007-09-19 3:36 ` [14/17] Allow bit_waitqueue to wait on a bit in a vmalloc area Christoph Lameter
2007-09-19 4:12 ` Gabriel C
2007-09-19 17:40 ` Christoph Lameter
2007-09-19 3:36 ` [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK Christoph Lameter
2007-09-27 21:42 ` Nick Piggin
2007-09-28 17:33 ` Christoph Lameter
2007-09-28 5:14 ` Nick Piggin
2007-10-01 20:50 ` Christoph Lameter
2007-10-02 8:43 ` Nick Piggin
2007-10-04 16:16 ` SLUB performance regression vs SLAB Matthew Wilcox
2007-10-04 17:38 ` Christoph Lameter
2007-10-04 17:50 ` Arjan van de Ven
2007-10-04 17:58 ` Christoph Lameter
2007-10-04 18:26 ` Peter Zijlstra
2007-10-04 20:48 ` David Miller
2007-10-04 20:58 ` Matthew Wilcox
2007-10-04 21:05 ` David Miller
2007-10-04 21:11 ` Christoph Lameter
2007-10-04 18:32 ` Matthew Wilcox
2007-10-04 17:49 ` Christoph Lameter
2007-10-04 19:28 ` Matthew Wilcox
2007-10-04 19:05 ` Christoph Lameter
2007-10-04 19:46 ` Siddha, Suresh B
2007-10-04 20:55 ` David Miller
2007-10-04 21:02 ` Chuck Ebbert
2007-10-04 21:11 ` David Miller
2007-10-04 21:47 ` Chuck Ebbert
2007-10-04 22:07 ` David Miller
2007-10-04 22:23 ` David Chinner
2007-10-05 6:48 ` Jens Axboe
2007-10-05 9:19 ` Pekka Enberg
2007-10-05 9:28 ` Jens Axboe
2007-10-05 11:12 ` Andi Kleen
2007-10-05 12:39 ` Jens Axboe
2007-10-05 19:31 ` Christoph Lameter
2007-10-05 19:32 ` Christoph Lameter
2007-10-05 11:56 ` Matthew Wilcox
2007-10-05 12:37 ` Jens Axboe
2007-10-05 19:27 ` Christoph Lameter
2007-10-05 20:32 ` Peter Zijlstra
2007-10-05 21:31 ` David Miller
2007-10-04 21:05 ` Matthew Wilcox
2007-10-05 2:43 ` Christoph Lameter
2007-10-05 2:53 ` Arjan van de Ven
2007-09-28 17:55 ` [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK Peter Zijlstra
2007-09-28 18:20 ` Christoph Lameter
2007-09-28 18:25 ` Peter Zijlstra
2007-09-28 18:41 ` Christoph Lameter
2007-09-28 20:22 ` Nick Piggin
2007-09-28 21:14 ` Mel Gorman
2007-09-28 20:59 ` Mel Gorman
2007-09-29 8:13 ` Andrew Morton
2007-09-29 8:47 ` Peter Zijlstra
2007-09-29 8:53 ` Peter Zijlstra
2007-09-29 9:01 ` Andrew Morton
2007-09-29 9:14 ` Peter Zijlstra
2007-09-29 9:27 ` Andrew Morton
2007-09-28 20:19 ` Nick Piggin
2007-09-29 19:20 ` Andrew Morton
2007-09-29 19:09 ` Nick Piggin
2007-09-30 20:12 ` Andrew Morton
2007-09-30 4:16 ` Nick Piggin
2007-09-29 9:00 ` Andrew Morton
2007-10-01 20:55 ` Christoph Lameter
2007-10-01 21:30 ` Andrew Morton
2007-10-01 21:38 ` Christoph Lameter
2007-10-01 21:45 ` Andrew Morton
2007-10-01 21:52 ` Christoph Lameter
2007-10-02 9:19 ` Peter Zijlstra
2007-09-29 8:45 ` Peter Zijlstra
2007-10-01 21:01 ` Christoph Lameter
2007-10-02 8:37 ` Nick Piggin [this message]
2007-09-28 21:05 ` Mel Gorman
2007-10-01 21:10 ` Christoph Lameter
2007-09-19 3:36 ` [16/17] Allow virtual fallback for buffer_heads Christoph Lameter
2007-09-19 3:36 ` [17/17] Allow virtual fallback for dentries Christoph Lameter
2007-09-19 7:34 ` [00/17] [RFC] Virtual Compound Page Support Anton Altaparmakov
2007-09-19 8:34 ` Eric Dumazet
2007-09-19 17:33 ` Christoph Lameter
2007-09-19 8:24 ` Andi Kleen
2007-09-19 17:36 ` Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2007-09-25 23:42 [00/17] Virtual Compound Page Support V1 Christoph Lameter
2007-09-25 23:42 ` [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK Christoph Lameter
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