From: Mel Gorman <mgorman@suse.de>
To: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>, Rik van Riel <riel@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v5 7/8] sched/numa: fix record hinting faults check
Date: Wed, 11 Dec 2013 09:14:22 +0000 [thread overview]
Message-ID: <20131211091422.GU11295@suse.de> (raw)
In-Reply-To: <1386723001-25408-8-git-send-email-liwanp@linux.vnet.ibm.com>
On Wed, Dec 11, 2013 at 08:50:00AM +0800, Wanpeng Li wrote:
> Adjust numa_scan_period in task_numa_placement, depending on how much useful
> work the numa code can do. The local faults and remote faults should be used
> to check if there is record hinting faults instead of local faults and shared
> faults. This patch fix it.
>
> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
This potentially has the side-effect of making it easier to reduce the
scan rate because it'll only take the most recent scan window into
account. The existing code takes recent shared accesses into account.
What sort of tests did you do on this patch and what was the result?
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2013-12-11 9:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-11 0:49 [PATCH v5 0/8] mm: sched: numa: several fixups Wanpeng Li
2013-12-11 0:49 ` [PATCH v5 1/8] sched/numa: fix set cpupid on page migration twice against thp Wanpeng Li
2013-12-11 0:49 ` [PATCH v5 2/8] sched/numa: drop sysctl_numa_balancing_settle_count sysctl Wanpeng Li
2013-12-11 0:49 ` [PATCH v5 3/8] sched/numa: use wrapper function task_node to get node which task is on Wanpeng Li
2013-12-11 0:49 ` [PATCH v5 4/8] sched/numa: fix set cpupid on page migration twice against normal page Wanpeng Li
2013-12-11 9:01 ` Mel Gorman
2013-12-11 0:49 ` [PATCH v5 5/8] sched/numa: use wrapper function task_faults_idx to calculate index in group_faults Wanpeng Li
2013-12-11 9:02 ` Mel Gorman
2013-12-11 0:49 ` [PATCH v5 6/8] sched/numa: fix period_slot recalculation Wanpeng Li
2013-12-11 9:02 ` Mel Gorman
2013-12-11 0:50 ` [PATCH v5 7/8] sched/numa: fix record hinting faults check Wanpeng Li
2013-12-11 9:14 ` Mel Gorman [this message]
2013-12-11 9:41 ` Wanpeng Li
[not found] ` <20131211094156.GB26093@hacker.(null)>
2013-12-11 10:15 ` Mel Gorman
2013-12-11 0:50 ` [PATCH v5 8/8] sched/numa: drop unnecessary variable in task_weight Wanpeng Li
2013-12-11 9:21 ` Mel Gorman
2013-12-11 9:34 ` Wanpeng Li
2013-12-11 14:50 ` Naoya Horiguchi
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