From: "Américo Wang" <xiyou.wangcong@gmail.com>
To: David Rientjes <rientjes@google.com>
Cc: "Américo Wang" <xiyou.wangcong@gmail.com>,
"Ingo Molnar" <mingo@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Greg Kroah-Hartman" <gregkh@suse.de>,
"Shaohui Zheng" <shaohui.zheng@intel.com>,
"Paul Mundt" <lethal@linux-sh.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Andi Kleen" <ak@linux.intel.com>,
"Yinghai Lu" <yinghai@kernel.org>,
"Haicheng Li" <haicheng.li@intel.com>,
"Randy Dunlap" <randy.dunlap@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org
Subject: Re: [patch 1/2] x86: add numa=possible command line option
Date: Mon, 22 Nov 2010 23:43:17 +0800 [thread overview]
Message-ID: <20101122154317.GC4137@hack> (raw)
In-Reply-To: <alpine.DEB.2.00.1011211343350.26304@chino.kir.corp.google.com>
On Sun, Nov 21, 2010 at 01:46:07PM -0800, David Rientjes wrote:
>On Sun, 21 Nov 2010, AmA(C)rico Wang wrote:
>> Also, numa=possible= is not as clear as numa=max=, for me at least.
>>
>
>I like name, but it requires that you know how many nodes that system
>already has. In other words, numa=possible=4 allows you to specify that 4
>additional nodes will be possible, but initially offline, for this or
>other purposes. numa=max=4 would be no-op if the system actually had 4
>nodes.
>
>I chose numa=possible over numa=additional because it is more clearly tied
>to node_possible_map, which is the only thing it modifies.
Okay, I thought "possible" means "max", but "possible" means "addtional" here.
It's clear for me now.
Thanks!
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next prev parent reply other threads:[~2010-11-22 15:40 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-17 2:07 [0/8,v3] NUMA Hotplug Emulator - Introduction & Feedbacks shaohui.zheng
2010-11-17 2:08 ` [1/8,v3] NUMA Hotplug Emulator: add function to hide memory region via e820 table shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-18 9:20 ` Shaohui Zheng
2010-11-18 21:16 ` David Rientjes
2010-11-19 0:12 ` Shaohui Zheng
2010-11-21 0:45 ` David Rientjes
2010-11-21 14:00 ` Américo Wang
2010-11-21 21:33 ` David Rientjes
2010-11-17 2:08 ` [2/8,v3] NUMA Hotplug Emulator: infrastructure of NUMA hotplug emulation shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-17 7:51 ` Shaohui Zheng
2010-11-17 21:10 ` David Rientjes
2010-11-18 4:14 ` Shaohui Zheng
2010-11-18 6:27 ` Paul Mundt
2010-11-18 5:27 ` Shaohui Zheng
2010-11-18 21:24 ` David Rientjes
2010-11-19 0:32 ` Shaohui Zheng
2010-11-21 0:48 ` David Rientjes
2010-11-21 2:28 ` [patch 1/2] x86: add numa=possible command line option David Rientjes
2010-11-21 2:28 ` [patch 2/2] mm: add node hotplug emulation David Rientjes
2010-11-21 17:34 ` Greg KH
2010-11-21 21:48 ` David Rientjes
2010-11-21 23:08 ` [patch 2/2 v2] " David Rientjes
2010-11-22 0:56 ` Greg KH
2010-11-28 1:52 ` David Rientjes
2010-11-28 5:17 ` Greg KH
2010-11-30 0:04 ` David Rientjes
2010-11-21 14:26 ` [patch 1/2] x86: add numa=possible command line option Américo Wang
2010-11-21 21:46 ` David Rientjes
2010-11-22 15:43 ` Américo Wang [this message]
2010-11-21 15:14 ` [2/8,v3] NUMA Hotplug Emulator: infrastructure of NUMA hotplug emulation Li, Haicheng
2010-11-21 21:42 ` David Rientjes
2010-11-18 21:19 ` David Rientjes
2010-11-17 2:08 ` [3/8,v3] NUMA Hotplug Emulator: Userland interface to hotplug-add fake offlined nodes shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-17 2:08 ` [4/8,v3] NUMA Hotplug Emulator: Abstract cpu register functions shaohui.zheng
2010-11-17 2:08 ` [5/8,v3] NUMA Hotplug Emulator: support cpu probe/release in x86 shaohui.zheng
2010-11-21 14:45 ` Américo Wang
2010-11-22 0:01 ` Shaohui Zheng
2010-11-22 15:51 ` Américo Wang
2010-11-22 23:29 ` Shaohui Zheng
2010-11-17 2:08 ` [6/8,v3] NUMA Hotplug Emulator: Fake CPU socket with logical CPU on x86 shaohui.zheng
2010-11-17 2:08 ` [7/8,v3] NUMA Hotplug Emulator: extend memory probe interface to support NUMA shaohui.zheng
2010-11-17 18:50 ` Dave Hansen
2010-11-17 21:18 ` David Rientjes
2010-11-17 21:55 ` Dave Hansen
2010-11-17 22:44 ` David Rientjes
2010-11-17 23:00 ` Dave Hansen
2010-11-17 23:17 ` David Rientjes
2010-11-18 16:59 ` Aaron Durbin
2010-11-18 4:48 ` Shaohui Zheng
2010-11-18 6:24 ` Paul Mundt
2010-11-18 21:28 ` David Rientjes
2010-11-18 21:31 ` David Rientjes
2010-11-18 4:36 ` Shaohui Zheng
2010-11-19 7:51 ` Shaohui Zheng
2010-11-19 16:36 ` Dave Hansen
2010-11-17 2:08 ` [8/8,v3] NUMA Hotplug Emulator: documentation shaohui.zheng
2010-11-17 23:06 ` Randy Dunlap
2010-11-18 2:31 ` Shaohui Zheng
2010-11-21 15:03 ` Américo Wang
2010-11-21 15:16 ` Li, Haicheng
2010-11-21 23:33 ` Shaohui Zheng
2010-11-22 16:04 ` Américo Wang
2010-11-22 23:23 ` Shaohui Zheng
2010-11-17 5:22 ` [0/8,v3] NUMA Hotplug Emulator - Introduction & Feedbacks Paul Mundt
2010-11-19 5:54 ` Shaohui Zheng
2010-11-17 9:26 ` Yinghai Lu
2010-11-18 2:03 ` Shaohui Zheng
[not found] <A24AE1FFE7AEC5489F83450EE98351BF28723FC48C@shsmsx502.ccr.corp.intel.com>
2010-11-22 2:24 ` [patch 1/2] x86: add numa=possible command line option Shaohui Zheng
2010-11-28 2:03 ` David Rientjes
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