All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tang Chen <tangchen@cn.fujitsu.com>
To: Jiang Liu <jiang.liu@linux.intel.com>, Tejun Heo <tj@kernel.org>
Cc: mingo@redhat.com, akpm@linux-foundation.org, rjw@rjwysocki.net,
	hpa@zytor.com, laijs@cn.fujitsu.com, yasu.isimatu@gmail.com,
	isimatu.yasuaki@jp.fujitsu.com, kamezawa.hiroyu@jp.fujitsu.com,
	izumi.taku@jp.fujitsu.com, gongzhaogang@inspur.com,
	qiaonuohan@cn.fujitsu.com, x86@kernel.org,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, tangchen@cn.fujitsu.com
Subject: Re: [PATCH 1/5] x86, gfp: Cache best near node for memory allocation.
Date: Tue, 4 Aug 2015 16:24:08 +0800	[thread overview]
Message-ID: <55C076A8.6060206@cn.fujitsu.com> (raw)
In-Reply-To: <55C0725B.80201@linux.intel.com>


On 08/04/2015 04:05 PM, Jiang Liu wrote:
> ......
>
>
> But,
> 1) in cpu_up(), it will try to online a node, and it doesn't check if
> the node has memory.
> 2) in try_offline_node(), it offlines CPUs first, and then the memory.
>
> This behavior looks a little wired, or let's say it is ambiguous. It
> seems that a NUMA node
> consists of CPUs and memory. So if the CPUs are online, the node should
> be online.
> Hi Chen,
> 	I have posted a patch set to enable memoryless node on x86,
> will repost it for review:) Hope it help to solve this issue.
> Thanks!
> Gerry
>
>
Sure. Looking forward to the latest patches. :)

Thanks.

WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: Jiang Liu <jiang.liu@linux.intel.com>, Tejun Heo <tj@kernel.org>
Cc: mingo@redhat.com, akpm@linux-foundation.org, rjw@rjwysocki.net,
	hpa@zytor.com, laijs@cn.fujitsu.com, yasu.isimatu@gmail.com,
	isimatu.yasuaki@jp.fujitsu.com, kamezawa.hiroyu@jp.fujitsu.com,
	izumi.taku@jp.fujitsu.com, gongzhaogang@inspur.com,
	qiaonuohan@cn.fujitsu.com, x86@kernel.org,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, tangchen@cn.fujitsu.com
Subject: Re: [PATCH 1/5] x86, gfp: Cache best near node for memory allocation.
Date: Tue, 4 Aug 2015 16:24:08 +0800	[thread overview]
Message-ID: <55C076A8.6060206@cn.fujitsu.com> (raw)
In-Reply-To: <55C0725B.80201@linux.intel.com>


On 08/04/2015 04:05 PM, Jiang Liu wrote:
> ......
>
>
> But,
> 1) in cpu_up(), it will try to online a node, and it doesn't check if
> the node has memory.
> 2) in try_offline_node(), it offlines CPUs first, and then the memory.
>
> This behavior looks a little wired, or let's say it is ambiguous. It
> seems that a NUMA node
> consists of CPUs and memory. So if the CPUs are online, the node should
> be online.
> Hi Chen,
> 	I have posted a patch set to enable memoryless node on x86,
> will repost it for review:) Hope it help to solve this issue.
> Thanks!
> Gerry
>
>
Sure. Looking forward to the latest patches. :)

Thanks.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: Jiang Liu <jiang.liu@linux.intel.com>, Tejun Heo <tj@kernel.org>
Cc: <mingo@redhat.com>, <akpm@linux-foundation.org>,
	<rjw@rjwysocki.net>, <hpa@zytor.com>, <laijs@cn.fujitsu.com>,
	<yasu.isimatu@gmail.com>, <isimatu.yasuaki@jp.fujitsu.com>,
	<kamezawa.hiroyu@jp.fujitsu.com>, <izumi.taku@jp.fujitsu.com>,
	<gongzhaogang@inspur.com>, <qiaonuohan@cn.fujitsu.com>,
	<x86@kernel.org>, <linux-acpi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
	<tangchen@cn.fujitsu.com>
Subject: Re: [PATCH 1/5] x86, gfp: Cache best near node for memory allocation.
Date: Tue, 4 Aug 2015 16:24:08 +0800	[thread overview]
Message-ID: <55C076A8.6060206@cn.fujitsu.com> (raw)
In-Reply-To: <55C0725B.80201@linux.intel.com>


On 08/04/2015 04:05 PM, Jiang Liu wrote:
> ......
>
>
> But,
> 1) in cpu_up(), it will try to online a node, and it doesn't check if
> the node has memory.
> 2) in try_offline_node(), it offlines CPUs first, and then the memory.
>
> This behavior looks a little wired, or let's say it is ambiguous. It
> seems that a NUMA node
> consists of CPUs and memory. So if the CPUs are online, the node should
> be online.
> Hi Chen,
> 	I have posted a patch set to enable memoryless node on x86,
> will repost it for review:) Hope it help to solve this issue.
> Thanks!
> Gerry
>
>
Sure. Looking forward to the latest patches. :)

Thanks.

  reply	other threads:[~2015-08-04  8:25 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-07  9:30 [PATCH 0/5] Make cpuid <-> nodeid mapping persistent Tang Chen
2015-07-07  9:30 ` Tang Chen
2015-07-07  9:30 ` Tang Chen
2015-07-07  9:30 ` [PATCH 1/5] x86, gfp: Cache best near node for memory allocation Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 21:48   ` Tejun Heo
2015-07-15 21:48     ` Tejun Heo
2015-08-04  3:36     ` Tang Chen
2015-08-04  3:36       ` Tang Chen
2015-08-04  3:36       ` Tang Chen
2015-08-04  8:05       ` Jiang Liu
2015-08-04  8:05         ` Jiang Liu
2015-08-04  8:24         ` Tang Chen [this message]
2015-08-04  8:24           ` Tang Chen
2015-08-04  8:24           ` Tang Chen
2015-08-09  6:15         ` Tang Chen
2015-08-09  6:15           ` Tang Chen
2015-08-12  1:53           ` Jiang Liu
2015-08-12  1:53             ` Jiang Liu
2015-08-04  8:26       ` gongzhaogang
2015-08-04  8:26         ` gongzhaogang
2015-08-04  8:53         ` Tang Chen
2015-08-04  8:58         ` Tang Chen
2015-07-07  9:30 ` [PATCH 2/5] x86, acpi, cpu-hotplug: Enable acpi to register all possible cpus at boot time Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-07  9:30 ` [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-07 11:14   ` Mika Penttilä
2015-07-07 11:14     ` Mika Penttilä
2015-07-15  3:33     ` Tang Chen
2015-07-15  3:33       ` Tang Chen
2015-07-15  3:33       ` Tang Chen
2015-07-15  5:35       ` Jiang Liu
2015-07-15  5:35         ` Jiang Liu
2015-07-15  5:35         ` Jiang Liu
2015-07-15  6:26         ` Tang Chen
2015-07-15  6:26           ` Tang Chen
2015-07-15  6:26           ` Tang Chen
2015-07-15 22:02   ` Tejun Heo
2015-07-15 22:02     ` Tejun Heo
2015-07-07  9:30 ` [PATCH 4/5] x86, acpi, cpu-hotplug: Enable MADT APIs to return disabled apicid Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 22:06   ` Tejun Heo
2015-07-15 22:06     ` Tejun Heo
2015-07-07  9:30 ` [PATCH 5/5] x86, acpi, cpu-hotplug: Set persistent cpuid <-> nodeid mapping when booting Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 22:13 ` [PATCH 0/5] Make cpuid <-> nodeid mapping persistent Tejun Heo
2015-07-15 22:13   ` Tejun Heo
2015-07-23  4:44   ` Tang Chen
2015-07-23  4:44     ` Tang Chen
2015-07-23  4:44     ` Tang Chen
2015-07-23 18:32     ` Tejun Heo
2015-07-23 18:32       ` Tejun Heo
  -- strict thread matches above, loose matches on Subject: below --
2015-07-01  4:45 Tang Chen
2015-07-01  4:45 ` [PATCH 1/5] x86, gfp: Cache best near node for memory allocation Tang Chen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=55C076A8.6060206@cn.fujitsu.com \
    --to=tangchen@cn.fujitsu.com \
    --cc=akpm@linux-foundation.org \
    --cc=gongzhaogang@inspur.com \
    --cc=hpa@zytor.com \
    --cc=isimatu.yasuaki@jp.fujitsu.com \
    --cc=izumi.taku@jp.fujitsu.com \
    --cc=jiang.liu@linux.intel.com \
    --cc=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=laijs@cn.fujitsu.com \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mingo@redhat.com \
    --cc=qiaonuohan@cn.fujitsu.com \
    --cc=rjw@rjwysocki.net \
    --cc=tj@kernel.org \
    --cc=x86@kernel.org \
    --cc=yasu.isimatu@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.