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From: Minchan Kim <minchan@kernel.org>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.cz>, Vlastimil Babka <vbabka@suse.cz>,
	Linux-MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/5] mm: Remove reclaim and compaction retry approximations
Date: Mon, 25 Jul 2016 17:18:20 +0900	[thread overview]
Message-ID: <20160725081820.GD1660@bbox> (raw)
In-Reply-To: <1469110261-7365-4-git-send-email-mgorman@techsingularity.net>

On Thu, Jul 21, 2016 at 03:10:59PM +0100, Mel Gorman wrote:
> If per-zone LRU accounting is available then there is no point
> approximating whether reclaim and compaction should retry based on pgdat
> statistics. This is effectively a revert of "mm, vmstat: remove zone and
> node double accounting by approximating retries" with the difference that
> inactive/active stats are still available. This preserves the history of
> why the approximation was retried and why it had to be reverted to handle
> OOM kills on 32-bit systems.
> 
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Minchan Kim <minchan@kernel.org>

WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.cz>, Vlastimil Babka <vbabka@suse.cz>,
	Linux-MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/5] mm: Remove reclaim and compaction retry approximations
Date: Mon, 25 Jul 2016 17:18:20 +0900	[thread overview]
Message-ID: <20160725081820.GD1660@bbox> (raw)
In-Reply-To: <1469110261-7365-4-git-send-email-mgorman@techsingularity.net>

On Thu, Jul 21, 2016 at 03:10:59PM +0100, Mel Gorman wrote:
> If per-zone LRU accounting is available then there is no point
> approximating whether reclaim and compaction should retry based on pgdat
> statistics. This is effectively a revert of "mm, vmstat: remove zone and
> node double accounting by approximating retries" with the difference that
> inactive/active stats are still available. This preserves the history of
> why the approximation was retried and why it had to be reverted to handle
> OOM kills on 32-bit systems.
> 
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Minchan Kim <minchan@kernel.org>

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  parent reply	other threads:[~2016-07-25  8:18 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-21 14:10 [PATCH 0/5] Candidate fixes for premature OOM kills with node-lru v2 Mel Gorman
2016-07-21 14:10 ` Mel Gorman
2016-07-21 14:10 ` [PATCH 1/5] mm: add per-zone lru list stat Mel Gorman
2016-07-21 14:10   ` Mel Gorman
2016-07-22 15:51   ` Johannes Weiner
2016-07-22 15:51     ` Johannes Weiner
2016-07-21 14:10 ` [PATCH 2/5] mm, vmscan: Remove highmem_file_pages Mel Gorman
2016-07-21 14:10   ` Mel Gorman
2016-07-22 15:53   ` Johannes Weiner
2016-07-22 15:53     ` Johannes Weiner
2016-07-25  8:09   ` Minchan Kim
2016-07-25  8:09     ` Minchan Kim
2016-07-25  9:23     ` [PATCH] mm, vmscan: remove highmem_file_pages -fix Mel Gorman
2016-07-25  9:23       ` Mel Gorman
2016-07-21 14:10 ` [PATCH 3/5] mm: Remove reclaim and compaction retry approximations Mel Gorman
2016-07-21 14:10   ` Mel Gorman
2016-07-22 15:57   ` Johannes Weiner
2016-07-22 15:57     ` Johannes Weiner
2016-07-25  8:18   ` Minchan Kim [this message]
2016-07-25  8:18     ` Minchan Kim
2016-07-21 14:11 ` [PATCH 4/5] mm: consider per-zone inactive ratio to deactivate Mel Gorman
2016-07-21 14:11   ` Mel Gorman
2016-07-21 15:52   ` Johannes Weiner
2016-07-21 15:52     ` Johannes Weiner
2016-07-21 14:11 ` [PATCH 5/5] mm, vmscan: Account for skipped pages as a partial scan Mel Gorman
2016-07-21 14:11   ` Mel Gorman
2016-07-22 16:02   ` Johannes Weiner
2016-07-22 16:02     ` Johannes Weiner
2016-07-25  8:39   ` Minchan Kim
2016-07-25  8:39     ` Minchan Kim
2016-07-25  9:52     ` Mel Gorman
2016-07-25  9:52       ` Mel Gorman
2016-07-26  8:16   ` Joonsoo Kim
2016-07-26  8:16     ` Joonsoo Kim
2016-07-26  8:26     ` Joonsoo Kim
2016-07-26  8:26       ` Joonsoo Kim
2016-07-26  8:11 ` [PATCH 0/5] Candidate fixes for premature OOM kills with node-lru v2 Joonsoo Kim
2016-07-26  8:11   ` Joonsoo Kim
2016-07-26 12:50   ` Mel Gorman
2016-07-26 12:50     ` Mel Gorman
2016-07-28  6:44     ` Joonsoo Kim
2016-07-28  6:44       ` Joonsoo Kim
2016-07-28 10:27       ` Mel Gorman
2016-07-28 10:27         ` Mel Gorman

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