Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate

From: Minchan Kim
Date: Thu Dec 29 2016 - 00:53:55 EST

On Wed, Dec 28, 2016 at 04:30:28PM +0100, Michal Hocko wrote:
> From: Michal Hocko <mhocko@xxxxxxxx>
> 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@xxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>