From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by kanga.kvack.org (Postfix) with ESMTP id 92BB48E0001 for ; Mon, 17 Dec 2018 08:20:31 -0500 (EST) Received: by mail-pg1-f198.google.com with SMTP id r16so10619788pgr.15 for ; Mon, 17 Dec 2018 05:20:31 -0800 (PST) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id y6si11111404pfi.228.2018.12.17.05.20.30 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Dec 2018 05:20:30 -0800 (PST) Subject: Re: [PATCH 02/14] mm, compaction: Rearrange compact_control References: <20181214230310.572-1-mgorman@techsingularity.net> <20181214230310.572-3-mgorman@techsingularity.net> From: Vlastimil Babka Message-ID: <85aad977-efdd-91ff-8e71-4f17b4695cf2@suse.cz> Date: Mon, 17 Dec 2018 14:20:28 +0100 MIME-Version: 1.0 In-Reply-To: <20181214230310.572-3-mgorman@techsingularity.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman , Linux-MM Cc: David Rientjes , Andrea Arcangeli , Linus Torvalds , Michal Hocko , ying.huang@intel.com, kirill@shutemov.name, Andrew Morton , Linux List Kernel Mailing On 12/15/18 12:02 AM, Mel Gorman wrote: > compact_control spans two cache lines with write-intensive lines on > both. Rearrange so the most write-intensive fields are in the same > cache line. This has a negligible impact on the overall performance of > compaction and is more a tidying exercise than anything. > > Signed-off-by: Mel Gorman Acked-by: Vlastimil Babka