linux-kernel - Re: [RFC PATCH 2/2] zsmalloc: chain-length configuration should consider other metrics

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Message-ID: <b6mzgm4cgl2sgervqymz6cldgxtck7em7hzzgamucm572k4ayd@bhp3msgnitbh>
Date: Tue, 6 Jan 2026 18:47:04 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Sergey Senozhatsky <senozhatsky@...omium.org>
Cc: Yosry Ahmed <yosry.ahmed@...ux.dev>, 
	Andrew Morton <akpm@...ux-foundation.org>, Nhat Pham <nphamcs@...il.com>, Minchan Kim <minchan@...nel.org>, 
	Johannes Weiner <hannes@...xchg.org>, Brian Geffon <bgeffon@...gle.com>, linux-kernel@...r.kernel.org, 
	Herbert Xu <herbert@...dor.apana.org.au>, linux-mm@...ck.org
Subject: Re: [RFC PATCH 2/2] zsmalloc: chain-length configuration should
 consider other metrics

On (26/01/06 13:20), Sergey Senozhatsky wrote:
> Another area where we potentially could apply similar heuristics
> is size-calsses merge logic: sheer fact that two size-classes have
> similar objects per zspage and pages per zspage does not necessarily
> mean that merging them will be beneficial.

That's nonsense.