linux-kernel - Re: [PATCH v2 3/3] mm/swap: remove swap_cache

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Message-ID: <YrA+LyiEkgKRGu12@FVFYT0MHHV2J.usts.net>
Date:   Mon, 20 Jun 2022 17:30:23 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     akpm@...ux-foundation.org, david@...hat.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] mm/swap: remove swap_cache_info statistics

On Wed, Jun 08, 2022 at 10:40:31PM +0800, Miaohe Lin wrote:
> swap_cache_info are not statistics that could be easily used to tune system
> performance because they are not easily accessile. Also they can't provide
> really useful info when OOM occurs. Remove these statistics can also help
> mitigate unneeded global swap_cache_info cacheline contention.
> 
> Suggested-by: David Hildenbrand <david@...hat.com>
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>

Thanks.