From: Minchan Kim <minchan@kernel.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-team@fb.com
Subject: Re: [PATCH 3/5] mm: vmscan: remove old flusher wakeup from direct reclaim path
Date: Thu, 26 Jan 2017 10:38:06 +0900 [thread overview]
Message-ID: <20170126013806.GC21211@bbox> (raw)
In-Reply-To: <20170123181641.23938-4-hannes@cmpxchg.org>
On Mon, Jan 23, 2017 at 01:16:39PM -0500, Johannes Weiner wrote:
> Direct reclaim has been replaced by kswapd reclaim in pretty much all
> common memory pressure situations, so this code most likely doesn't
> accomplish the described effect anymore. The previous patch wakes up
> flushers for all reclaimers when we encounter dirty pages at the tail
> end of the LRU. Remove the crufty old direct reclaim invocation.
>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Minchan Kim <minchan@kernel.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>, <kernel-team@fb.com>
Subject: Re: [PATCH 3/5] mm: vmscan: remove old flusher wakeup from direct reclaim path
Date: Thu, 26 Jan 2017 10:38:06 +0900 [thread overview]
Message-ID: <20170126013806.GC21211@bbox> (raw)
In-Reply-To: <20170123181641.23938-4-hannes@cmpxchg.org>
On Mon, Jan 23, 2017 at 01:16:39PM -0500, Johannes Weiner wrote:
> Direct reclaim has been replaced by kswapd reclaim in pretty much all
> common memory pressure situations, so this code most likely doesn't
> accomplish the described effect anymore. The previous patch wakes up
> flushers for all reclaimers when we encounter dirty pages at the tail
> end of the LRU. Remove the crufty old direct reclaim invocation.
>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Minchan Kim <minchan@kernel.org>
next prev parent reply other threads:[~2017-01-26 1:38 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-23 18:16 [PATCH 0/5] mm: vmscan: fix kswapd writeback regression Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-23 18:16 ` [PATCH 1/5] mm: vmscan: scan dirty pages even in laptop mode Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-26 1:27 ` Minchan Kim
2017-01-26 1:27 ` Minchan Kim
2017-01-26 9:52 ` Mel Gorman
2017-01-26 9:52 ` Mel Gorman
2017-01-26 13:13 ` Michal Hocko
2017-01-26 13:13 ` Michal Hocko
2017-01-23 18:16 ` [PATCH 2/5] mm: vmscan: kick flushers when we encounter dirty pages on the LRU Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-26 1:35 ` Minchan Kim
2017-01-26 1:35 ` Minchan Kim
2017-01-26 9:57 ` Mel Gorman
2017-01-26 9:57 ` Mel Gorman
2017-01-26 17:47 ` Johannes Weiner
2017-01-26 17:47 ` Johannes Weiner
2017-01-26 18:47 ` Mel Gorman
2017-01-26 18:47 ` Mel Gorman
2017-01-26 13:16 ` Michal Hocko
2017-01-26 13:16 ` Michal Hocko
2017-01-23 18:16 ` [PATCH 3/5] mm: vmscan: remove old flusher wakeup from direct reclaim path Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-26 1:38 ` Minchan Kim [this message]
2017-01-26 1:38 ` Minchan Kim
2017-01-26 10:05 ` Mel Gorman
2017-01-26 10:05 ` Mel Gorman
2017-01-26 18:50 ` Johannes Weiner
2017-01-26 18:50 ` Johannes Weiner
2017-01-26 20:45 ` Mel Gorman
2017-01-26 20:45 ` Mel Gorman
2017-01-27 12:01 ` Michal Hocko
2017-01-27 12:01 ` Michal Hocko
2017-01-27 14:27 ` Mel Gorman
2017-01-27 14:27 ` Mel Gorman
2017-01-26 13:21 ` Michal Hocko
2017-01-26 13:21 ` Michal Hocko
2017-01-23 18:16 ` [PATCH 4/5] mm: vmscan: only write dirty pages that the scanner has seen twice Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-26 1:42 ` Minchan Kim
2017-01-26 1:42 ` Minchan Kim
2017-01-26 10:08 ` Mel Gorman
2017-01-26 10:08 ` Mel Gorman
2017-01-26 13:29 ` Michal Hocko
2017-01-26 13:29 ` Michal Hocko
2017-01-23 18:16 ` [PATCH 5/5] mm: vmscan: move dirty pages out of the way until they're flushed Johannes Weiner
2017-01-23 18:16 ` Johannes Weiner
2017-01-26 1:47 ` Minchan Kim
2017-01-26 1:47 ` Minchan Kim
2017-01-26 10:19 ` Mel Gorman
2017-01-26 10:19 ` Mel Gorman
2017-01-26 20:07 ` Johannes Weiner
2017-01-26 20:07 ` Johannes Weiner
2017-01-26 20:58 ` Mel Gorman
2017-01-26 20:58 ` Mel Gorman
2017-01-26 13:52 ` Michal Hocko
2017-01-26 13:52 ` Michal Hocko
2017-01-26 5:44 ` [PATCH 0/5] mm: vmscan: fix kswapd writeback regression Hillf Danton
2017-01-26 5:44 ` Hillf Danton
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