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Date: Thu, 29 Dec 2016 14:53:29 +0900
From: Minchan Kim <minchan@kernel.org>
Subject: Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in
 mm_vmscan_lru_isolate
Message-ID: <20161229055329.GB1815@bbox>
References: <20161228153032.10821-1-mhocko@kernel.org>
 <20161228153032.10821-4-mhocko@kernel.org>
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Sender: owner-linux-mm@kvack.org
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To: Michal Hocko <mhocko@kernel.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>, Mel Gorman <mgorman@suse.de>, Johannes Weiner <hannes@cmpxchg.org>, Vlastimil Babka <vbabka@suse.cz>, Rik van Riel <riel@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Michal Hocko <mhocko@suse.com>

On Wed, Dec 28, 2016 at 04:30:28PM +0100, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
> 
> mm_vmscan_lru_isolate shows the number of requested, scanned and taken
> pages. This is mostly OK but on 32b systems the number of scanned pages
> is quite misleading because it includes both the scanned and skipped
> pages.  Moreover the skipped part is scaled based on the number of taken
> pages. Let's report the exact numbers without any additional logic and
> add the number of skipped pages. This should make the reported data much
> more easier to interpret.
> 
> Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Minchan Kim <minchan@kernel.org>

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