From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f198.google.com (mail-pf0-f198.google.com [209.85.192.198]) by kanga.kvack.org (Postfix) with ESMTP id D51076B0005 for ; Mon, 26 Feb 2018 08:52:49 -0500 (EST) Received: by mail-pf0-f198.google.com with SMTP id z5so8441428pfe.16 for ; Mon, 26 Feb 2018 05:52:49 -0800 (PST) Received: from mga07.intel.com (mga07.intel.com. [134.134.136.100]) by mx.google.com with ESMTPS id i127si604972pgc.100.2018.02.26.05.52.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Feb 2018 05:52:48 -0800 (PST) From: Aaron Lu Subject: [PATCH v3 0/3] mm: improve zone->lock scalability Date: Mon, 26 Feb 2018 21:53:43 +0800 Message-Id: <20180226135346.7208-1-aaron.lu@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Andrew Morton , Huang Ying , Dave Hansen , Kemi Wang , Tim Chen , Andi Kleen , Michal Hocko , Vlastimil Babka , Mel Gorman , Matthew Wilcox 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org