linux-kernel - Re: [RFC v2 PATCH 0/8] mm: mirrored memory support for page buddy allocations

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Message-ID: <5591F042.1020304@huawei.com>
Date:	Tue, 30 Jun 2015 09:26:26 +0800
From:	Xishi Qiu <qiuxishi@...wei.com>
To:	Dave Hansen <dave.hansen@...el.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	Xiexiuqi <xiexiuqi@...wei.com>, <leon@...n.nu>,
	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Vlastimil Babka <vbabka@...e.cz>, Mel Gorman <mgorman@...e.de>,
	Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC v2 PATCH 0/8] mm: mirrored memory support for page buddy
 allocations

On 2015/6/29 23:19, Dave Hansen wrote:

> On 06/26/2015 07:19 PM, Xishi Qiu wrote:
>>  drivers/base/node.c      |  17 ++++---
>>  fs/proc/meminfo.c        |   6 +++
>>  include/linux/memblock.h |  29 ++++++++++--
>>  include/linux/mmzone.h   |  10 ++++
>>  include/linux/vmstat.h   |   2 +
>>  mm/Kconfig               |   8 ++++
>>  mm/memblock.c            |  33 +++++++++++--
>>  mm/nobootmem.c           |   3 ++
>>  mm/page_alloc.c          | 117 ++++++++++++++++++++++++++++++++++++-----------
>>  mm/vmstat.c              |   4 ++
>>  10 files changed, 190 insertions(+), 39 deletions(-)
> 
> Has there been any performance analysis done on this code?  I'm always
> nervous when I see page_alloc.c churn.
> 

Not yet, which benchmark do you suggest?

Thanks,
Xishi Qiu

> 
> 
> .
> 



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