From: Mel Gorman <mgorman@techsingularity.net>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Vlastimil Babka <vbabka@suse.cz>, Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 5/5] mm, vmscan: Update all zone LRU sizes before updating memcg
Date: Fri, 15 Jul 2016 16:01:40 +0100 [thread overview]
Message-ID: <20160715150140.GP9806@techsingularity.net> (raw)
In-Reply-To: <20160715144534.GA8644@bbox>
On Fri, Jul 15, 2016 at 11:45:34PM +0900, Minchan Kim wrote:
> > +static __always_inline void update_lru_sizes(struct lruvec *lruvec,
> > + enum lru_list lru, unsigned long *nr_zone_taken,
> > + unsigned long nr_taken)
> > +{
> > +#ifdef CONFIG_HIGHMEM
>
> If you think it's really worth to optimize it for non-highmem system,
> we don't need to account nr_zone_taken in *isolate_lru_pages*
> from the beginning for non-highmem system, either.
>
It becomes a mess of ifdefs and given the marginal overhead, I left it
for now.
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2016-07-15 15:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-15 13:09 [PATCH 0/5] Follow-up fixes to node-lru series v2 Mel Gorman
2016-07-15 13:09 ` [PATCH 1/5] mm, vmscan: make shrink_node decisions more node-centric -fix Mel Gorman
2016-07-15 15:42 ` Minchan Kim
2016-07-18 16:14 ` Johannes Weiner
2016-07-15 13:09 ` [PATCH 2/5] mm, vmscan: avoid passing in classzone_idx unnecessarily to compaction_ready -fix Mel Gorman
2016-07-15 15:50 ` Minchan Kim
2016-07-18 16:15 ` Johannes Weiner
2016-07-15 13:09 ` [PATCH 3/5] mm, pagevec: Release/reacquire lru_lock on pgdat change Mel Gorman
2016-07-15 15:53 ` Minchan Kim
2016-07-18 16:20 ` Johannes Weiner
2016-07-15 13:09 ` [PATCH 4/5] mm: show node_pages_scanned per node, not zone Mel Gorman
2016-07-16 10:14 ` Minchan Kim
2016-07-15 13:09 ` [PATCH 5/5] mm, vmscan: Update all zone LRU sizes before updating memcg Mel Gorman
2016-07-15 14:45 ` Minchan Kim
2016-07-15 15:01 ` Mel Gorman [this message]
2016-07-15 15:54 ` Minchan Kim
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