linux-kernel - Re: [PATCH v3] vmscan/trace: Add 'file' info to trace_mm_vmscan_lru

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Message-ID: <CAEwNFnBrczRf6XMeN6EaTkANVPdzLeAXqahJxAWPGz3GDW5nWg@mail.gmail.com>
Date:	Sun, 18 Dec 2011 09:49:20 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Tao Ma <tm@....ma>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Mel Gorman <mel@....ul.ie>, Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v3] vmscan/trace: Add 'file' info to trace_mm_vmscan_lru_isolate.

On Thu, Dec 15, 2011 at 12:14 AM, Tao Ma <tm@....ma> wrote:
> From: Tao Ma <boyu.mt@...bao.com>
>
> In trace_mm_vmscan_lru_isolate, we don't output 'file'
> information to the trace event and it is a bit inconvenient for the
> user to get the real information(like pasted below).
> mm_vmscan_lru_isolate: isolate_mode=2 order=0 nr_requested=32 nr_scanned=32
> nr_taken=32 contig_taken=0 contig_dirty=0 contig_failed=0
>
> 'active' can be gotten by analyzing mode(Thanks go to Minchan and Mel),
> So this patch adds 'file' to the trace event and it now looks like:
> mm_vmscan_lru_isolate: isolate_mode=2 order=0 nr_requested=32 nr_scanned=32
> nr_taken=32 contig_taken=0 contig_dirty=0 contig_failed=0 file=0
>
> Cc: Mel Gorman <mel@....ul.ie>
> Cc: Minchan Kim <minchan.kim@...il.com>
> Cc: Rik van Riel <riel@...hat.com>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Signed-off-by: Tao Ma <boyu.mt@...bao.com>

Andrew pointed out that   trace_mm_vmscan_memcg_isolate is out , Otherwise,
Reviewed-by: Minchan Kim <minchan@...nel.org>


-- 
Kind regards,
Minchan Kim
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