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From: Michal Hocko <mhocko@kernel.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>,
	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>
Subject: Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint
Date: Wed, 4 Jan 2017 08:50:58 +0100	[thread overview]
Message-ID: <20170104075058.GA25453@dhcp22.suse.cz> (raw)
In-Reply-To: <20170104050722.GA17166@bbox>

On Wed 04-01-17 14:07:22, Minchan Kim wrote:
> On Tue, Jan 03, 2017 at 09:21:22AM +0100, Michal Hocko wrote:
[...]
> > with other tracepoints but that can be helpful because you do not have
> > all the tracepoints enabled all the time. So unless you see this
> > particular thing as a road block I would rather keep it.
> 
> I didn't know how long this thread becomes lenghy. To me, it was no worth
> to discuss. I did best effot to explain my stand with valid points, I think
> and don't want to go infinite loop. If you don't agree still, separate
> the patch. One includes only necessary things with removing nr_scanned, which
> I am happy to ack it. Based upon it, add one more patch you want adding
> nr_scanned with your claim. I will reply that thread with my claim and
> let's keep an eye on it that whether maintainer will take it or not.

To be honest this is just not worth the effort and rather than
discussing further I will just drop the nr_scanned slthough I disagree
that your concerns regarding this _particular counter_ are really valid.

> If maintainer will take it, it's good indication which will represent
> we can add more extra tracepoint easily with "might be helpful with someone
> although it's redunant" so do not prevent others who want to do
> in the future.

no we do not work in a precedence system like that.

-- 
Michal Hocko
SUSE Labs

  parent reply	other threads:[~2017-01-04  7:51 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-28 15:30 [PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Michal Hocko
2016-12-28 15:30 ` [PATCH 1/7] mm, vmscan: remove unused mm_vmscan_memcg_isolate Michal Hocko
2016-12-29  7:33   ` Hillf Danton
2016-12-28 15:30 ` [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko
2016-12-29  5:33   ` Minchan Kim
2016-12-29  7:52     ` Michal Hocko
2016-12-30  1:48       ` Minchan Kim
2016-12-30  9:26         ` Michal Hocko
2016-12-30  9:38           ` Hillf Danton
2016-12-30 16:04           ` Minchan Kim
2016-12-30 16:37             ` Michal Hocko
2016-12-30 17:30               ` Michal Hocko
2017-01-03  5:03               ` Minchan Kim
2017-01-03  8:21                 ` Michal Hocko
2017-01-04  5:07                   ` Minchan Kim
2017-01-04  7:28                     ` Vlastimil Babka
2017-01-04  7:50                     ` Michal Hocko [this message]
2016-12-29  7:44   ` Hillf Danton
2016-12-28 15:30 ` [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate Michal Hocko
2016-12-29  5:53   ` Minchan Kim
2016-12-29  7:49   ` Hillf Danton
2017-01-03 17:21   ` Vlastimil Babka
2017-01-03 20:43     ` Michal Hocko
2016-12-28 15:30 ` [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko
2016-12-28 15:50   ` Nikolay Borisov
2016-12-28 16:00     ` Michal Hocko
2016-12-28 16:40       ` Nikolay Borisov
2016-12-28 16:49         ` Michal Hocko
2016-12-29  6:02   ` Minchan Kim
2016-12-29  7:56     ` Michal Hocko
2016-12-30  1:56       ` Minchan Kim
2016-12-30  9:33         ` Michal Hocko
2016-12-29  7:53   ` Hillf Danton
2017-01-03 17:08   ` Vlastimil Babka
2017-01-03 20:47     ` Michal Hocko
2017-01-03 20:52       ` Michal Hocko
2017-01-03 21:24         ` Michal Hocko
2017-01-03 21:40           ` Vlastimil Babka
2017-01-03 21:48             ` Michal Hocko
2016-12-28 15:30 ` [PATCH 5/7] mm, vmscan: extract shrink_page_list reclaim counters into a struct Michal Hocko
2016-12-29  8:00   ` Hillf Danton
2016-12-28 15:30 ` [PATCH 6/7] mm, vmscan: enhance mm_vmscan_lru_shrink_inactive tracepoint Michal Hocko
2016-12-29  8:05   ` Hillf Danton
2016-12-28 15:30 ` [PATCH 7/7] mm, vmscan: add mm_vmscan_inactive_list_is_low tracepoint Michal Hocko
2016-12-29  8:19   ` Hillf Danton
2016-12-30  9:11 ` [PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Mel Gorman
2016-12-30  9:36   ` Michal Hocko
2016-12-30 10:20     ` Mel Gorman
2017-01-04 10:19 [PATCH 0/7 v2] " Michal Hocko
2017-01-04 10:19 ` [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko
2017-01-04 12:52   ` Vlastimil Babka
2017-01-04 13:16     ` Michal Hocko
2017-01-04 13:34       ` Vlastimil Babka
2017-01-04 13:52   ` Michal Hocko
2017-01-05  5:41     ` Minchan Kim

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