linux-kernel - Re: [PATCH RFC] mm: count zeromap read and set for swapout and swapin

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Message-ID: <CAKEwX=NH9ubWSgKyEJJ0sjxoYXhCV3r4VCJf7UZxHdVX5GDA=Q@mail.gmail.com>
Date: Mon, 28 Oct 2024 09:34:59 -0700
From: Nhat Pham <nphamcs@...il.com>
To: Barry Song <21cnbao@...il.com>
Cc: akpm@...ux-foundation.org, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org, Barry Song <v-songbaohua@...o.com>, 
	Usama Arif <usamaarif642@...il.com>, Chengming Zhou <chengming.zhou@...ux.dev>, 
	Yosry Ahmed <yosryahmed@...gle.com>, Johannes Weiner <hannes@...xchg.org>, 
	David Hildenbrand <david@...hat.com>, Hugh Dickins <hughd@...gle.com>, 
	Matthew Wilcox <willy@...radead.org>, Shakeel Butt <shakeel.butt@...ux.dev>, 
	Andi Kleen <ak@...ux.intel.com>, Baolin Wang <baolin.wang@...ux.alibaba.com>, 
	Chris Li <chrisl@...nel.org>, "Huang, Ying" <ying.huang@...el.com>, 
	Kairui Song <kasong@...cent.com>, Ryan Roberts <ryan.roberts@....com>
Subject: Re: [PATCH RFC] mm: count zeromap read and set for swapout and swapin

On Sun, Oct 27, 2024 at 7:32 PM Barry Song <21cnbao@...il.com> wrote:
>
>
> agree it is better to have a separate counter for zeromap.
> then it raises a question: what is the proper name for it :-)
>
> zeromap_swpin, zeromap_swpout seems too long? and zswpin
> and zswpout have been used by zswap

Hmmmmm. How about zeroswpin? zeroswpout?

zeromap_swpin and zeromap_swpout is not the end of the world, FWIW :)