From: Mel Gorman <mel@csn.ul.ie>
To: Christoph Lameter <cl@linux.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Shaohua Li <shaohua.li@intel.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: zone state overhead
Date: Fri, 22 Oct 2010 19:46:47 +0100 [thread overview]
Message-ID: <20101022184647.GH2160@csn.ul.ie> (raw)
In-Reply-To: <alpine.DEB.2.00.1010221024080.20437@router.home>
On Fri, Oct 22, 2010 at 10:27:55AM -0500, Christoph Lameter wrote:
> On Fri, 22 Oct 2010, Mel Gorman wrote:
>
> >
> > +void disable_pgdat_percpu_threshold(pg_data_t *pgdat)
>
> Call this set_pgdat_stat_threshold() and make it take a calculate_pressure
> () function?
>
> void set_pgdat_stat_threshold(pg_data_t *pgdat, int (*calculate_pressure)(struct zone *)) ?
>
> Then do
>
> set_pgdat_stat_threshold(pgdat, threshold_normal)
>
> set_pgdat_stat_threshold(pgdat, threshold_pressure)
>
> ?
>
I considered it but thought the indirection would look tortured and
hinder review. If we agree on the basic premise, I would do it as two
patches. Would that suit?
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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next prev parent reply other threads:[~2010-10-22 18:47 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 5:08 zone state overhead Shaohua Li
2010-09-28 12:39 ` Christoph Lameter
2010-09-28 13:30 ` Mel Gorman
2010-09-28 13:40 ` Christoph Lameter
2010-09-28 13:51 ` Mel Gorman
2010-09-28 14:08 ` Christoph Lameter
2010-09-29 3:02 ` Shaohua Li
2010-09-29 4:02 ` David Rientjes
2010-09-29 4:47 ` Shaohua Li
2010-09-29 5:06 ` David Rientjes
2010-09-29 10:03 ` Mel Gorman
2010-09-29 14:12 ` Christoph Lameter
2010-09-29 14:17 ` Mel Gorman
2010-09-29 14:34 ` Christoph Lameter
2010-09-29 14:41 ` Mel Gorman
2010-09-29 14:45 ` Mel Gorman
2010-09-29 14:54 ` Christoph Lameter
2010-09-29 14:52 ` Christoph Lameter
2010-09-29 19:44 ` David Rientjes
2010-10-08 15:29 ` Mel Gorman
2010-10-09 0:58 ` Shaohua Li
2010-10-11 8:56 ` Mel Gorman
2010-10-12 1:05 ` Shaohua Li
2010-10-12 16:25 ` Mel Gorman
2010-10-13 2:41 ` Shaohua Li
2010-10-13 12:09 ` Mel Gorman
2010-10-13 3:36 ` KOSAKI Motohiro
2010-10-13 6:25 ` [RFC][PATCH 0/3] mm: reserve max drift pages at boot time instead using zone_page_state_snapshot() KOSAKI Motohiro
2010-10-13 6:27 ` [RFC][PATCH 1/3] mm, mem-hotplug: recalculate lowmem_reserve when memory hotplug occur KOSAKI Motohiro
2010-10-13 6:39 ` KAMEZAWA Hiroyuki
2010-10-13 12:59 ` Mel Gorman
2010-10-14 2:44 ` KOSAKI Motohiro
2010-10-13 6:28 ` [RFC][PATCH 2/3] mm: update pcp->stat_threshold " KOSAKI Motohiro
2010-10-13 6:40 ` KAMEZAWA Hiroyuki
2010-10-13 13:02 ` Mel Gorman
2010-10-13 6:32 ` [RFC][PATCH 3/3] mm: reserve max drift pages at boot time instead using zone_page_state_snapshot() KOSAKI Motohiro
2010-10-13 13:19 ` Mel Gorman
2010-10-14 2:39 ` KOSAKI Motohiro
2010-10-18 10:43 ` Mel Gorman
2010-10-13 7:10 ` [experimental][PATCH] mm,vmstat: per cpu stat flush too when per cpu page cache flushed KOSAKI Motohiro
2010-10-13 7:16 ` KAMEZAWA Hiroyuki
2010-10-13 13:22 ` Mel Gorman
2010-10-14 2:50 ` KOSAKI Motohiro
2010-10-15 17:31 ` Christoph Lameter
2010-10-18 9:27 ` KOSAKI Motohiro
2010-10-18 15:44 ` Christoph Lameter
2010-10-19 1:10 ` KOSAKI Motohiro
2010-10-18 11:08 ` Mel Gorman
2010-10-19 1:34 ` KOSAKI Motohiro
2010-10-19 9:06 ` Mel Gorman
2010-10-18 15:51 ` Christoph Lameter
2010-10-19 0:43 ` KOSAKI Motohiro
2010-10-13 11:24 ` zone state overhead Mel Gorman
2010-10-14 3:07 ` KOSAKI Motohiro
2010-10-18 10:39 ` Mel Gorman
2010-10-19 1:16 ` KOSAKI Motohiro
2010-10-19 9:08 ` Mel Gorman
2010-10-22 14:12 ` Mel Gorman
2010-10-22 15:23 ` Christoph Lameter
2010-10-22 18:45 ` Mel Gorman
2010-10-22 15:27 ` Christoph Lameter
2010-10-22 18:46 ` Mel Gorman [this message]
2010-10-22 20:01 ` Christoph Lameter
2010-10-25 4:46 ` KOSAKI Motohiro
2010-10-27 8:19 ` Mel Gorman
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