From: Aaron Lu <aaron.lu@intel.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Huang Ying <ying.huang@intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Kemi Wang <kemi.wang@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Michal Hocko <mhocko@suse.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mel Gorman <mgorman@techsingularity.net>,
Matthew Wilcox <willy@infradead.org>
Subject: [PATCH v3 0/3] mm: improve zone->lock scalability
Date: Mon, 26 Feb 2018 21:53:43 +0800 [thread overview]
Message-ID: <20180226135346.7208-1-aaron.lu@intel.com> (raw)
Patch 1/3 is a small cleanup suggested by Matthew Wilcox which doesn't
affect scalability or performance;
Patch 2/3 moves some code in free_pcppages_bulk() outside of zone->lock
and has Mel Gorman's ack;
Patch 3/3 uses prefetch in free_pcppages_bulk() outside of zone->lock to
speedup page merging under zone->lock but Mel Gorman has some concerns.
For details, please see their changelogs.
Changes from v2:
Patch 1/3 is newly added;
Patch 2/3 is patch 1/2 in v2 and doesn't have any change except resolving
conflicts due to the newly added patch 1/3;
Patch 3/3 is patch 2/2 in v2 and only has some changelog updates on
concerns part.
v1 and v2 was here:
https://lkml.org/lkml/2018/1/23/879
Aaron Lu (3):
mm/free_pcppages_bulk: update pcp->count inside
mm/free_pcppages_bulk: do not hold lock when picking pages to free
mm/free_pcppages_bulk: prefetch buddy while not holding lock
mm/page_alloc.c | 56 +++++++++++++++++++++++++++++++++++---------------------
1 file changed, 35 insertions(+), 21 deletions(-)
--
2.14.3
next reply other threads:[~2018-02-26 13:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 13:53 Aaron Lu [this message]
2018-02-26 13:53 ` [PATCH v3 1/3] mm/free_pcppages_bulk: update pcp->count inside Aaron Lu
2018-02-26 21:48 ` David Rientjes
2018-02-27 1:56 ` Aaron Lu
2018-02-27 3:12 ` Aaron Lu
2018-02-26 13:53 ` [PATCH v3 2/3] mm/free_pcppages_bulk: do not hold lock when picking pages to free Aaron Lu
2018-02-26 21:53 ` David Rientjes
2018-02-27 2:00 ` Aaron Lu
2018-02-27 3:17 ` Aaron Lu
2018-02-26 13:53 ` [PATCH v3 3/3] mm/free_pcppages_bulk: prefetch buddy while not holding lock Aaron Lu
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