From: Paul Jackson <pj@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: clameter@sgi.com, linux-mm@kvack.org, rientjes@google.com
Subject: Re: [PATCH] GFP_THISNODE for the slab allocator
Date: Sun, 17 Sep 2006 05:09:44 -0700 [thread overview]
Message-ID: <20060917050944.3fba690e.pj@sgi.com> (raw)
In-Reply-To: <20060916215545.32fba5c7.akpm@osdl.org>
Andrew wrote:
> Apart from the fact that
> get_page_from_freelist() sucks. And speeding that up will speed up other
> workloads.
With the exception of this fake NUMA trick, I still haven't seen any
evidence that there is a performance issue here. Sure, there is the
potential for painful linear searches here, but in actual use, that's
not what happens.
A linear search is not linear in performance if the search is heavily
biased toward succeeding on the first few probes.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
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next prev parent reply other threads:[~2006-09-17 12:09 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-13 23:50 [PATCH] GFP_THISNODE for the slab allocator Christoph Lameter
2006-09-15 5:00 ` Andrew Morton
2006-09-15 6:49 ` Paul Jackson
2006-09-15 7:23 ` Andrew Morton
2006-09-15 7:44 ` Paul Jackson
2006-09-15 8:06 ` Andrew Morton
2006-09-15 15:53 ` David Rientjes
2006-09-15 23:03 ` David Rientjes
2006-09-16 0:04 ` Paul Jackson
2006-09-16 1:36 ` Andrew Morton
2006-09-16 2:23 ` Christoph Lameter
2006-09-16 4:34 ` Andrew Morton
2006-09-16 3:28 ` [PATCH] Add node to zone for the NUMA case Christoph Lameter
2006-09-16 3:40 ` Paul Jackson
2006-09-16 3:45 ` [PATCH] GFP_THISNODE for the slab allocator Paul Jackson
2006-09-16 2:47 ` Christoph Lameter
2006-09-17 3:45 ` David Rientjes
2006-09-17 11:17 ` Paul Jackson
2006-09-17 12:41 ` Christoph Lameter
2006-09-17 13:03 ` Paul Jackson
2006-09-17 20:36 ` David Rientjes
2006-09-17 21:20 ` Paul Jackson
2006-09-17 22:27 ` Paul Jackson
2006-09-17 23:49 ` David Rientjes
2006-09-18 2:20 ` Paul Jackson
2006-09-18 16:34 ` Paul Jackson
2006-09-18 17:49 ` David Rientjes
2006-09-18 20:46 ` Paul Jackson
2006-09-19 20:52 ` David Rientjes
2006-09-19 21:26 ` Christoph Lameter
2006-09-19 21:50 ` David Rientjes
2006-09-21 22:11 ` David Rientjes
2006-09-22 10:10 ` Nick Piggin
2006-09-22 16:26 ` Paul Jackson
2006-09-22 16:36 ` Christoph Lameter
2006-09-15 8:28 ` Andrew Morton
2006-09-16 3:38 ` Paul Jackson
2006-09-16 4:42 ` Andi Kleen
2006-09-16 11:38 ` Paul Jackson
2006-09-16 4:48 ` Andrew Morton
2006-09-16 11:30 ` Paul Jackson
2006-09-16 15:18 ` Andrew Morton
2006-09-17 9:28 ` Paul Jackson
2006-09-17 9:51 ` Nick Piggin
2006-09-17 11:15 ` Paul Jackson
2006-09-17 12:44 ` Nick Piggin
2006-09-17 13:19 ` Paul Jackson
2006-09-17 13:52 ` Nick Piggin
2006-09-17 21:19 ` Paul Jackson
2006-09-18 12:44 ` [PATCH] mm: exempt pcp alloc from watermarks Peter Zijlstra
2006-09-18 20:20 ` Christoph Lameter
2006-09-18 20:43 ` Peter Zijlstra
2006-09-19 14:35 ` Nick Piggin
2006-09-19 14:44 ` Christoph Lameter
2006-09-19 15:02 ` Nick Piggin
2006-09-19 14:51 ` Peter Zijlstra
2006-09-19 15:10 ` Nick Piggin
2006-09-19 15:05 ` Peter Zijlstra
2006-09-19 15:39 ` Christoph Lameter
2006-09-17 16:29 ` [PATCH] GFP_THISNODE for the slab allocator Andrew Morton
2006-09-18 2:11 ` Paul Jackson
2006-09-18 5:09 ` Andrew Morton
2006-09-18 7:49 ` Paul Jackson
2006-09-16 11:48 ` Paul Jackson
2006-09-16 15:38 ` Andrew Morton
2006-09-16 21:51 ` Paul Jackson
2006-09-16 23:10 ` Andrew Morton
2006-09-17 4:37 ` Christoph Lameter
2006-09-17 4:55 ` Andrew Morton
2006-09-17 12:09 ` Paul Jackson [this message]
2006-09-17 12:36 ` Christoph Lameter
2006-09-17 13:06 ` Paul Jackson
2006-09-19 19:17 ` David Rientjes
2006-09-19 19:19 ` David Rientjes
2006-09-19 19:31 ` Christoph Lameter
2006-09-19 21:12 ` David Rientjes
2006-09-19 21:28 ` Christoph Lameter
2006-09-19 21:53 ` Paul Jackson
2006-09-15 17:08 ` Christoph Lameter
2006-09-15 17:37 ` [PATCH] Add NUMA_BUILD definition in kernel.h to avoid #ifdef CONFIG_NUMA Christoph Lameter
2006-09-15 17:38 ` [PATCH] Disable GFP_THISNODE in the non-NUMA case Christoph Lameter
2006-09-15 17:42 ` [PATCH] GFP_THISNODE for the slab allocator V2 Christoph Lameter
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