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From: andi.kleen@intel.com (Andi Kleen)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC][PATCH 0/3] big chunk memory allocator v2
Date: Fri, 29 Oct 2010 12:31:54 +0200	[thread overview]
Message-ID: <20101029103154.GA10823@gargoyle.fritz.box> (raw)
In-Reply-To: <op.vlbywq137p4s8u@pikus>

> When I was posting CMA, it had been suggested to create a new migration type
> dedicated to contiguous allocations.  I think I already did that and thanks to
> this new migration type we have (i) an area of memory that only accepts movable
> and reclaimable pages and 

Aka highmem next generation :-(

> (ii) is used only if all other (non-reserved) pages have
> been allocated.

That will be near always the case after some uptime, as memory fills up
with caches. Unless you do early reclaim? 

-Andi

WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi.kleen@intel.com>
To: "Michał Nazarewicz" <m.nazarewicz@samsung.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Minchan Kim <minchan.kim@gmail.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
	"fujita.tomonori@lab.ntt.co.jp" <fujita.tomonori@lab.ntt.co.jp>,
	"felipe.contreras@gmail.com" <felipe.contreras@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@arm.linux.org.uk>,
	Pawel Osciak <pawel@osciak.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFC][PATCH 0/3] big chunk memory allocator v2
Date: Fri, 29 Oct 2010 12:31:54 +0200	[thread overview]
Message-ID: <20101029103154.GA10823@gargoyle.fritz.box> (raw)
In-Reply-To: <op.vlbywq137p4s8u@pikus>

> When I was posting CMA, it had been suggested to create a new migration type
> dedicated to contiguous allocations.  I think I already did that and thanks to
> this new migration type we have (i) an area of memory that only accepts movable
> and reclaimable pages and 

Aka highmem next generation :-(

> (ii) is used only if all other (non-reserved) pages have
> been allocated.

That will be near always the case after some uptime, as memory fills up
with caches. Unless you do early reclaim? 

-Andi


WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi.kleen@intel.com>
To: "Michał Nazarewicz" <m.nazarewicz@samsung.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Minchan Kim <minchan.kim@gmail.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
	"fujita.tomonori@lab.ntt.co.jp" <fujita.tomonori@lab.ntt.co.jp>,
	"felipe.contreras@gmail.com" <felipe.contreras@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@arm.linux.org.uk>,
	Pawel Osciak <pawel@osciak.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFC][PATCH 0/3] big chunk memory allocator v2
Date: Fri, 29 Oct 2010 12:31:54 +0200	[thread overview]
Message-ID: <20101029103154.GA10823@gargoyle.fritz.box> (raw)
In-Reply-To: <op.vlbywq137p4s8u@pikus>

> When I was posting CMA, it had been suggested to create a new migration type
> dedicated to contiguous allocations.  I think I already did that and thanks to
> this new migration type we have (i) an area of memory that only accepts movable
> and reclaimable pages and 

Aka highmem next generation :-(

> (ii) is used only if all other (non-reserved) pages have
> been allocated.

That will be near always the case after some uptime, as memory fills up
with caches. Unless you do early reclaim? 

-Andi

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  reply	other threads:[~2010-10-29 10:31 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-26 10:00 [RFC][PATCH 0/3] big chunk memory allocator v2 KAMEZAWA Hiroyuki
2010-10-26 10:00 ` KAMEZAWA Hiroyuki
2010-10-26 10:02 ` [RFC][PATCH 1/3] move code from memory_hotplug to page_isolation KAMEZAWA Hiroyuki
2010-10-26 10:02   ` KAMEZAWA Hiroyuki
2010-10-26 10:04 ` [RFC][PATCH 2/3] a help function for find physically contiguous block KAMEZAWA Hiroyuki
2010-10-26 10:04   ` KAMEZAWA Hiroyuki
2010-10-29  3:53   ` Bob Liu
2010-10-29  3:53     ` Bob Liu
2010-10-29  4:00     ` KAMEZAWA Hiroyuki
2010-10-29  4:00       ` KAMEZAWA Hiroyuki
2010-10-26 10:08 ` [RFC][PATCH 3/3] a big contig memory allocator KAMEZAWA Hiroyuki
2010-10-26 10:08   ` KAMEZAWA Hiroyuki
2010-10-29  3:55   ` Bob Liu
2010-10-29  3:55     ` Bob Liu
2010-10-29  4:02     ` KAMEZAWA Hiroyuki
2010-10-29  4:02       ` KAMEZAWA Hiroyuki
2010-10-27 23:22 ` [RFC][PATCH 0/3] big chunk memory allocator v2 Minchan Kim
2010-10-27 23:22   ` Minchan Kim
2010-10-27 23:22   ` Minchan Kim
2010-10-29  9:20   ` Michał Nazarewicz
2010-10-29  9:20     ` Michał Nazarewicz
2010-10-29  9:20     ` Michał Nazarewicz
2010-10-29 10:31     ` Andi Kleen [this message]
2010-10-29 10:31       ` Andi Kleen
2010-10-29 10:31       ` Andi Kleen
2010-10-29 10:59       ` KAMEZAWA Hiroyuki
2010-10-29 10:59         ` KAMEZAWA Hiroyuki
2010-10-29 10:59         ` KAMEZAWA Hiroyuki
2010-10-29 12:29         ` Andi Kleen
2010-10-29 12:29           ` Andi Kleen
2010-10-29 12:29           ` Andi Kleen
2010-10-29 12:31           ` KAMEZAWA Hiroyuki
2010-10-29 12:31             ` KAMEZAWA Hiroyuki
2010-10-29 12:31             ` KAMEZAWA Hiroyuki
2010-10-29 12:43           ` Michał Nazarewicz
2010-10-29 12:43             ` Michał Nazarewicz
2010-10-29 12:43             ` Michał Nazarewicz
2010-10-29 14:27             ` Andi Kleen
2010-10-29 14:27               ` Andi Kleen
2010-10-29 14:27               ` Andi Kleen
2010-10-29 14:58               ` Michał Nazarewicz
2010-10-29 14:58                 ` Michał Nazarewicz
2010-10-29 14:58                 ` Michał Nazarewicz
2010-10-29 13:11       ` Minchan Kim
2010-10-29 13:11         ` Minchan Kim
2010-10-29 13:11         ` Minchan Kim

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