From: "Alex,Shi" <alex.shi@intel.com>
To: Christoph Lameter <cl@linux.com>
Cc: "Wu, Fengguang" <fengguang.wu@intel.com>,
Pekka Enberg <penberg@kernel.org>,
Pekka Enberg <penberg@cs.helsinki.fi>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
David Rientjes <rientjes@google.com>, Mel Gorman <mel@csn.ul.ie>,
"npiggin@kernel.dk" <npiggin@kernel.dk>,
"yanmin_zhang@linux.intel.com" <yanmin_zhang@linux.intel.com>,
"Chen, Tim C" <tim.c.chen@intel.com>,
"Li, Shaohua" <shaohua.li@intel.com>
Subject: Re: [UnifiedV4 00/16] The Unified slab allocator (V4)
Date: Tue, 19 Oct 2010 08:01:44 +0800 [thread overview]
Message-ID: <1287446504.24927.4.camel@debian> (raw)
In-Reply-To: <alpine.DEB.2.00.1010181249540.2092@router.home>
On Tue, 2010-10-19 at 02:00 +0800, Christoph Lameter wrote:
> On Wed, 13 Oct 2010, Alex,Shi wrote:
>
> > I got the code from
> > git://git.kernel.org/pub/scm/linux/kernel/git/christoph/slab.git unified
> > on branch "origin/unified" and do a patch base on 36-rc7 kernel. Then I
> > tested the patch on our 2P/4P core2 machines and 2P NHM, 2P WSM
> > machines. Most of benchmark have no clear improvement or regression. The
> > testing benchmarks is listed here.
> > http://kernel-perf.sourceforge.net/about_tests.php
>
> Ah. Thanks. The tests needs to show a clear benefit for this to be a
> viable solution. They did earlier without all the NUMA queuing on SMP.
>
> > BTW, I save several time kernel panic in fio testing:
> > ===================
> > > Pid: 776, comm: kswapd0 Not tainted 2.6.36-rc7-unified #1 X8DTN/X8DTN
> > > > RIP: 0010:[<ffffffff810cc21c>] [<ffffffff810cc21c>] slab_alloc
> > > > +0x562/0x6f2
>
> Cannot see the error message? I guess this is the result of a BUG_ON()?
> I'll try to run that fio test first.
>
Can not see error messages since the machine hang when any ops appear.
And the panic ops just pop up randomly, don't know how to reproduce it
now.
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next prev parent reply other threads:[~2010-10-18 23:59 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 18:57 [UnifiedV4 00/16] The Unified slab allocator (V4) Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 01/16] slub: Enable sysfs support for !CONFIG_SLUB_DEBUG Christoph Lameter
2010-10-06 14:02 ` Pekka Enberg
2010-10-05 18:57 ` [UnifiedV4 02/16] slub: Move functions to reduce #ifdefs Christoph Lameter
2010-10-06 14:02 ` Pekka Enberg
2010-10-05 18:57 ` [UnifiedV4 03/16] slub: Add per cpu queueing Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 04/16] slub: Allow resizing of per cpu queues Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 05/16] slub: Remove MAX_OBJS limitation Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 06/16] slub: Drop allocator announcement Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 07/16] slub: Object based NUMA policies Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 08/16] slub: Get rid of page lock and rely on per node lock Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 09/16] slub: Shared cache to exploit cross cpu caching abilities Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 10/16] slub: Support Alien Caches Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 11/16] slub: Add a "touched" state to queues and partial lists Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 12/16] slub: Cached object expiration Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 13/16] vmscan: Tie slub object expiration into page reclaim Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 14/16] slub: Reduce size of not performance critical slabs Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 15/16] slub: Detailed reports on validate Christoph Lameter
2010-10-05 18:57 ` [UnifiedV4 16/16] slub: Add stats for alien allocation slowpath Christoph Lameter
2010-10-06 8:01 ` [UnifiedV4 00/16] The Unified slab allocator (V4) Pekka Enberg
2010-10-06 11:03 ` Richard Kennedy
2010-10-06 11:19 ` Pekka Enberg
2010-10-06 15:46 ` Richard Kennedy
2010-10-06 16:21 ` [UnifiedV4 slabinfo 1/2] Move slabinfo.c to tools/slub/slabinfo.c Christoph Lameter
2010-10-06 16:21 ` [UnifiedV4 slabinfo 2/2] slub: update slabinfo.c for queuing Christoph Lameter
2010-10-06 20:56 ` [UnifiedV4 00/16] The Unified slab allocator (V4) Christoph Lameter
2010-10-06 16:00 ` Christoph Lameter
2010-10-06 12:37 ` Wu Fengguang
2010-10-13 2:21 ` Alex,Shi
2010-10-18 18:00 ` Christoph Lameter
2010-10-19 0:01 ` Alex,Shi [this message]
2010-10-06 15:56 ` Christoph Lameter
2010-10-13 14:14 ` Mel Gorman
2010-10-18 18:13 ` Christoph Lameter
2010-10-19 9:23 ` Mel Gorman
2010-10-12 18:25 ` Mel Gorman
2010-10-13 7:16 ` Pekka Enberg
2010-10-13 13:46 ` Mel Gorman
2010-10-13 16:10 ` Christoph Lameter
2010-10-06 10:47 ` Andi Kleen
2010-10-06 15:59 ` Christoph Lameter
2010-10-06 16:25 ` Andi Kleen
2010-10-06 16:37 ` Christoph Lameter
2010-10-06 16:43 ` Andi Kleen
2010-10-06 16:49 ` Christoph Lameter
2010-10-06 16:52 ` Christoph Lameter
2010-10-19 20:39 ` David Rientjes
2010-10-20 13:47 ` Christoph Lameter
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