From: Nishanth Aravamudan <nacc@linux•vnet.ibm.com>
To: Alexander Duyck <alexander.duyck@gmail•com>
Cc: Jiang Liu <jiang.liu@linux•intel.com>,
Andrew Morton <akpm@linux-foundation•org>,
Mel Gorman <mgorman@suse•de>,
David Rientjes <rientjes@google•com>,
Mike Galbraith <umgwanakikbuti@gmail•com>,
Peter Zijlstra <peterz@infradead•org>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel•com>,
Jeff Kirsher <jeffrey.t.kirsher@intel•com>,
Jesse Brandeburg <jesse.brandeburg@intel•com>,
Bruce Allan <bruce.w.allan@intel•com>,
Carolyn Wyborny <carolyn.wyborny@intel•com>,
Don Skidmore <donald.c.skidmore@intel•com>,
Greg Rose <gregory.v.rose@intel•com>,
Alex Duyck <alexander.h.duyck@intel•com>,
John Ronciak <john.ronciak@intel•com>,
Mitch Williams <mitch.a.williams@intel•com>,
Linux NICS <linux.nics@intel•com>,
Tony Luck <tony.luck@intel•com>,
linux-mm@kvack•org, linux-hotplug@
Subject: Re: [RFC Patch V1 15/30] mm, igb: Use cpu_to_mem()/numa_mem_id() to support memoryless node
Date: Mon, 21 Jul 2014 14:09:00 -0700 [thread overview]
Message-ID: <20140721210900.GI4156@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAKgT0UdZdbduP-=R7uRCxJVxt1yCDoHpnercnDoyrCbWNtx=6Q@mail.gmail.com>
On 21.07.2014 [12:53:33 -0700], Alexander Duyck wrote:
> I do agree the description should probably be changed. There shouldn't be
> any panics involved, only a performance impact as it will be reallocating
> always if it is on a node with no memory.
Yep, thanks for the review.
> My intention on this was to make certain that the memory used is from the
> closest node possible. As such I believe this change likely honours that.
Absolutely, just wanted to make it explicit that it's not a functional
fix, just a performance fix (presuming this shows up at all on systems
that have memoryless NUMA nodes).
I'd suggest an update to the comments, as well.
Thanks,
Nish
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next prev parent reply other threads:[~2014-07-21 21:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1405064267-11678-1-git-send-email-jiang.liu@linux.intel.com>
2014-07-11 7:37 ` [RFC Patch V1 03/30] mm, net: Use cpu_to_mem()/numa_mem_id() to support memoryless node Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 04/30] mm, netfilter: " Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 10/30] mm, xfrm: " Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 13/30] mm, i40e: " Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 14/30] mm, i40evf: " Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 15/30] mm, igb: " Jiang Liu
2014-07-21 17:42 ` Nishanth Aravamudan
2014-07-21 19:53 ` Alexander Duyck
2014-07-21 21:09 ` Nishanth Aravamudan [this message]
2014-07-23 3:20 ` Jiang Liu
2014-07-11 7:37 ` [RFC Patch V1 16/30] mm, ixgbe: " Jiang Liu
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