From: Andi Kleen <ak@suse.de>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@osdl.org>,
davej@codemonkey.org.uk, tony.luck@intel.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, bob.picco@hp.com,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 0/5] Sizing zones and holes in an architecture independent manner V7
Date: Wed, 7 Jun 2006 17:20:22 +0200 [thread overview]
Message-ID: <200606071720.22242.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0606071118230.20653@skynet.skynet.ie>
> Ok, while true, I'm not sure how it affects performance. The only "real"
> value affected by present_pages is the number of patches that are
> allocated in batches to the per-cpu allocator.
It affects the low/high water marks in the VM zone balancer.
Especially for the 16MB DMA zone it can make a difference if you
account 4MB kernel in there or not.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@osdl.org>,
davej@codemonkey.org.uk, tony.luck@intel.com, bob.picco@hp.com,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
linux-mm@kvack.org
Subject: Re: [PATCH 0/5] Sizing zones and holes in an architecture independent manner V7
Date: Wed, 7 Jun 2006 17:20:22 +0200 [thread overview]
Message-ID: <200606071720.22242.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0606071118230.20653@skynet.skynet.ie>
> Ok, while true, I'm not sure how it affects performance. The only "real"
> value affected by present_pages is the number of patches that are
> allocated in batches to the per-cpu allocator.
It affects the low/high water marks in the VM zone balancer.
Especially for the 16MB DMA zone it can make a difference if you
account 4MB kernel in there or not.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@osdl.org>,
davej@codemonkey.org.uk, tony.luck@intel.com, bob.picco@hp.com,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
linux-mm@kvack.org
Subject: Re: [PATCH 0/5] Sizing zones and holes in an architecture independent manner V7
Date: Wed, 7 Jun 2006 17:20:22 +0200 [thread overview]
Message-ID: <200606071720.22242.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0606071118230.20653@skynet.skynet.ie>
> Ok, while true, I'm not sure how it affects performance. The only "real"
> value affected by present_pages is the number of patches that are
> allocated in batches to the per-cpu allocator.
It affects the low/high water marks in the VM zone balancer.
Especially for the 16MB DMA zone it can make a difference if you
account 4MB kernel in there or not.
-Andi
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next prev parent reply other threads:[~2006-06-07 15:20 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-06 13:47 [PATCH 0/5] Sizing zones and holes in an architecture independent manner V7 Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:47 ` [PATCH 1/5] Introduce mechanism for registering active regions of memory Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:47 ` [PATCH 2/5] Have Power use add_active_range() and free_area_init_nodes() Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:47 ` Mel Gorman
2006-06-06 13:48 ` [PATCH 3/5] Have x86 use add_active_range() and free_area_init_nodes Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 13:48 ` [PATCH 4/5] Have x86_64 " Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 13:48 ` [PATCH 5/5] Have ia64 " Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 13:48 ` Mel Gorman
2006-06-06 22:59 ` (ProteanThread)
2006-06-06 22:59 ` (ProteanThread)
2006-06-06 23:43 ` [PATCH 0/5] Sizing zones and holes in an architecture independent manner V7 Andrew Morton
2006-06-06 23:43 ` Andrew Morton
2006-06-06 23:43 ` Andrew Morton
2006-06-07 9:42 ` Mel Gorman
2006-06-07 9:42 ` Mel Gorman
2006-06-07 9:42 ` Mel Gorman
2006-06-07 9:45 ` Andi Kleen
2006-06-07 9:45 ` Andi Kleen
2006-06-07 9:45 ` Andi Kleen
2006-06-07 10:11 ` Mel Gorman
2006-06-07 10:11 ` Mel Gorman
2006-06-07 10:11 ` Mel Gorman
2006-06-07 10:16 ` Andi Kleen
2006-06-07 10:16 ` Andi Kleen
2006-06-07 10:16 ` Andi Kleen
2006-06-07 10:54 ` Mel Gorman
2006-06-07 10:54 ` Mel Gorman
2006-06-07 10:54 ` Mel Gorman
2006-06-07 15:20 ` Andi Kleen [this message]
2006-06-07 15:20 ` Andi Kleen
2006-06-07 15:20 ` Andi Kleen
2006-06-07 16:25 ` Mel Gorman
2006-06-07 16:25 ` Mel Gorman
2006-06-07 16:25 ` Mel Gorman
2006-06-09 12:57 ` Mel Gorman
2006-06-09 12:57 ` Mel Gorman
2006-06-09 12:57 ` Mel Gorman
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