linux-kernel - Re: [PATCH 02/14] mm, compaction: Rearrange compact

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Message-ID: <85aad977-efdd-91ff-8e71-4f17b4695cf2@suse.cz>
Date:   Mon, 17 Dec 2018 14:20:28 +0100
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Mel Gorman <mgorman@...hsingularity.net>,
        Linux-MM <linux-mm@...ck.org>
Cc:     David Rientjes <rientjes@...gle.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Michal Hocko <mhocko@...nel.org>, ying.huang@...el.com,
        kirill@...temov.name, Andrew Morton <akpm@...ux-foundation.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 02/14] mm, compaction: Rearrange compact_control

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 <mgorman@...hsingularity.net>

Acked-by: Vlastimil Babka <vbabka@...e.cz>