linux-kernel - Re: [PATCH] mm: remove all the slab allocators

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Message-ID: <ZChKgQ35wLEpcQ0i@casper.infradead.org>
Date:   Sat, 1 Apr 2023 16:15:13 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev
Subject: Re: [PATCH] mm: remove all the slab allocators

On Sat, Apr 01, 2023 at 11:46:58AM +0200, Vlastimil Babka wrote:
> As the SLOB removal is on track and the SLAB removal is planned, I have
> realized - why should we stop there and not remove also SLUB? What's a
> slab allocator good for in 2023? The RAM sizes are getting larger and
> the modules cheaper [1]. The object constructor trick was perhaps
> interesting in 1994, but not with contemporary CPUs. So all the slab
> allocator does today is just adding an unnecessary layer of complexity
> over the page allocator.

Acked-by: Poisson D'Avril (Oracle) <willy@...radead.org>