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.
next prev parent reply other threads:[~2010-10-18 23:59 UTC|newest]
Thread overview: 41+ 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
2010-10-19 20:39 ` David Rientjes
2010-10-20 13:47 ` Christoph Lameter
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